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DATA SHEET
TDA6502; TDA6502A; TDA6503; TDA6503A 5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
Preliminary specification Supersedes data of 2000 Jan 24 File under Integrated Circuits, IC02 2000 Mar 16
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
CONTENTS 1 2 3 3.1 3.2 4 5 6 7 8 8.1 8.2 8.2.1 8.2.2 8.2.3 8.2.4 8.3 8.3.1 9 10 11 12 FEATURES APPLICATIONS GENERAL DESCRIPTION I2C-bus format 3-wire bus format QUICK REFERENCE DATA ORDERING INFORMATION BLOCK DIAGRAM PINNING FUNCTIONAL DESCRIPTION Control mode selection I2C-bus data format I2C-bus address selection Write mode Read mode Power-on reset 3-wire bus data format Power-on reset LIMITING VALUES THERMAL CHARACTERISTICS CHARACTERISTICS TIMING CHARACTERISTICS 13 13.1 13.2 13.3 13.4 13.5 13.5.1 13.5.2 13.6 13.6.1 13.6.2 13.6.3 14 15 16 16.1 16.2 16.3 16.4 17 18 19
TDA6502; TDA6502A; TDA6503; TDA6503A
TEST AND APPLICATION INFORMATION Test circuits Measurement circuit Tuning amplifier Crystal oscillator Examples of I2C-bus data format sequences for TDA6502 and TDA6503 Write sequences to register C2 Read sequences from register C3 Examples of 3-wire bus data format sequences for TDA6502 and TDA6503 18-bit sequence 19-bit sequence 27-bit sequence INTERNAL PIN CONFIGURATION PACKAGE OUTLINE SOLDERING Introduction to soldering surface mount packages Reflow soldering Wave soldering Manual soldering DEFINITIONS LIFE SUPPORT APPLICATIONS PURCHASE OF PHILIPS I2C COMPONENTS
2000 Mar 16
2
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
1 FEATURES
TDA6502; TDA6502A; TDA6503; TDA6503A
* Single-chip 5 V mixer/oscillator and synthesizer for cable TV and VCR tuners * Pin-to-pin compatible with TDA6402, TDA6402A, TDA6403 and TDA6403A * Universal bus protocol (I2C-bus or 3-wire bus) - Bus protocol for 18 or 19-bit transmission (3-wire bus) - Extra protocol for 27-bit transmission (test modes and features for 3-wire bus) - Address + 4 data bytes transmission (I2C-bus `write' mode) - Address + 1 status byte (I2C-bus `read' mode) - 4 independent I2C-bus addresses. * 1 PMOS buffer for UHF band selection (25 mA) * 3 PMOS buffers for general purpose, e.g. 2 VHF sub-bands, FM sound trap (25 mA) * 33 V tuning voltage output * In-lock detector * 5-step analog-to-digital converter (3 bits in I2C-bus mode) * 15-bit programmable divider * Programmable reference divider ratio (64, 80 or 128) * Programmable charge pump current (60 or 280 A) * Varicap drive disable * Balanced mixer with a common emitter input for VHF (single input) * Balanced mixer with a common base input for UHF (balanced input) * 2-pin common emitter oscillator for VHF * 4-pin common emitter oscillator for UHF * IF preamplifier with asymmetrical 75 output impedance able to drive loads from 75 upwards * Low power * Low radiation * Small size * The TDA6502A and TDA6503A differ from the TDA6502 and TDA6503 by the UHF port protocol in the I2C-bus mode (see Tables 3 and 4). 2 APPLICATIONS * Cable tuners for TV and VCR (switched concept for VHF). 3 GENERAL DESCRIPTION
The TDA6502, TDA6502A, TDA6503 and TDA6503A are programmable 2-band mixers/oscillators and synthesizers intended for VHF/UHF TV and VCR tuners (see Fig.1). Partitioning of the bands is the responsibility of the customer providing VHF is below 500 MHz and UHF is below 900 MHz. The devices include two double balanced mixers and two oscillators for the VHF and UHF band respectively, an IF amplifier and a PLL synthesizer. The VHF band can be split-up into two sub-bands using a proper oscillator application and a switchable inductor. Two pins are available between the mixer output and the IF amplifier input to enable IF filtering for improved signal handling. The port register provides four PMOS ports. Band selection is provided by port register UHF. When port register UHF is `on', the UHF mixer-oscillator is active and the VHF band is switched off. When port register UHF is `off', the VHF mixer-oscillator is active and the UHF band is off. Port registers VHFL and VHFH are used to select the VHF sub-bands. Port register FMST is a general purpose port, that can be used to switch an FM sound trap. When the ports are used, the sum of the drain currents has to be limited to 30 mA. The synthesizer consists of a 15-bit programmable divider, a crystal oscillator and its programmable reference divider and a phase comparator (phase/frequency detector) combined with a charge pump which drives the tuning amplifier, including the 33 V output at pin VT. Depending on the reference divider ratio (64, 80 or 128), the phase comparator operates at 62.5, 50 or 31.25 kHz with a 4 MHz crystal.
2000 Mar 16
3
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
Depending on the voltage applied to pin SW (see Table 2) the device is operating in the I2C-bus mode or 3-wire bus mode. In the 3-wire bus mode, pin LOCK/ADC is the `lock' output of the PLL and is at LOW level when the PLL is locked. Lock detector bit FL of the status byte is set to logic 1 when the loop is locked and is read on the SDA line during a READ operation in I2C-bus mode only. In the I2C-bus mode only, pin LOCK/ADC is the ADC input for digital AFC control. The ADC code is read during a READ operation on the I2C-bus. In the test mode, in both I2C-bus mode and 3-wire bus mode, pin LOCK/ADC is used as a test output for fREF and 1 f 2 DIV. 3.1 I2C-bus format Table 1
TDA6502; TDA6502A; TDA6503; TDA6503A
Data word length for 3-wire bus format REFERENCE DIVIDER(1) 64 128 programmable FREQUENCY STEP 62.50 kHz 31.25 kHz programmable
DATA WORD 18-bit 19-bit 27-bit Note
1. The selection of the reference divider is given by an automatic identification of the data word length. When the 27-bit format is used, the reference divider is controlled by bits RSA and RSB (see Table 8). More details are given in Section 8.3.
Five serial bytes (including the address byte) are required to address the device, select the VCO frequency, program the four ports, set the charge pump current and set the reference divider ratio. The device has four independent I2C-bus addresses which can be selected by applying a specific voltage to pin CE/AS. 3.2 3-wire bus format
Data is transmitted to the device during a HIGH level on pin CE/AS (enable line). The device is accessible with 18-bit and 19-bit data formats (see Figs 4 and 5). The first four bits are used to program the PMOS ports and the remaining bits control the programmable divider. A 27-bit data format (see Fig.6) may also be used to set the charge pump current, the reference divider ratio and the test modes. It is not allowed to address the device with words whose length is different from 18, 19 or 27 bits.
2000 Mar 16
4
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
4 QUICK REFERENCE DATA Measured over full voltage and temperature ranges. SYMBOL VCC ICC fXTAL Io(PMOS) Ptot Tstg Tamb fRF GV NF Vo PARAMETER supply voltage supply current crystal oscillator frequency PMOS port output current total power dissipation IC storage temperature ambient temperature RF frequency voltage gain noise figure output voltage (causing 1% cross modulation in channel) VHF band UHF band VHF band UHF band VHF band UHF band VHF band UHF band note 1 note 2 CONDITIONS operating all PMOS ports are off; VCC = 5V
TDA6502; TDA6502A; TDA6503; TDA6503A
MIN. 4.5 - - - - -40 -20 40 200 - - - - - -
TYP. 5 71 4.0 - - - - - - 20 32 7.5 7 110 110
MAX. 5.5 - - 30 520 +150 +85 800 900 - - - - - -
UNIT V mA MHz mA mW C C MHz MHz dB dB dB dB dBV dBV
Notes 1. One buffer `on', Io = 25 mA; two buffers `on', maximum sum of Io = 30 mA. 2. The power dissipation is calculated as follows: ( 0.5 x 33V ) P tot = V CC x ( I CC - I o ) + V P(sat) x I o + -------------------------------22 k where: VP(sat) = output saturation voltage on the buffer output Io = source current for one buffer output. 5 ORDERING INFORMATION TYPE NUMBER TDA6502; TDA6502A; TDA6503; TDA6503A PACKAGE NAME SSOP28 DESCRIPTION plastic shrink small outline package; 28 leads; body width 5.3 mm VERSION SOT341-1
2
2000 Mar 16
5
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
6 BLOCK DIAGRAM
TDA6502; TDA6502A; TDA6503; TDA6503A
handbook, full pagewidth
IFFIL1 IFFIL2 5 (24) 6 (23)
VCC 19 (10) (5) 24 VHFOSCOC
VHFIN
3 (26) RF INPUT VHF BS BS VHF MIXER BS VHF OSCILLATOR
(7) 22 (6) 23
VHFOSCIB OSCGND IFOUT
RFGND
4 (25)
TDA6502 TDA6502A (TDA6503) (TDA6503A)
RF INPUT UHF BS
IF PREAMPLIFIER
(9) 20
UHFIN1 UHFIN2
1 (28) 2 (27) BS UHF MIXER BS UHF OSCILLATOR
(1) 28 (2) 27 (3) 26 (4) 25
UHFOSCIB2 UHFOSCOC2 UHFOSCOC1 UHFOSCIB1
(13) 16 XTAL 18 (11) XTAL OSCILLATOR 4 MHz REFERENCE DIVIDER 64, 80, 128 RSA RSB fREF PHASE COMPARATOR fDIV IN-LOCK DETECTOR POWER-DOWN DETECTOR FL 14 (15) 13 (16) 11 (18) 15-BIT FREQUENCY REGISTER T0, T1, T2 CP CHARGE PUMP (12) 17
CP VT
OPAMP
15-BIT PROGRAMMABLE DIVIDER
OS
FL
CONTROL REGISTER
CL DA SW
SCL SDA SW
I2C-bus / 3-WIRE BUS TRANSCEIVER CE/AS FL
CP fREF 1/2fDIV
T2
T1
T0 RSA RSB OS
PORT REGISTER UHF VHFH VHFL FMST (8) 21
CE/AS
12 (17) 3-BIT ADC GATE BS T0, T1, T2 15 (14) LOCK/ADC
GND
9 (20)
8 (21)
7 (22)
10 (19)
FCE527
PVHFH PUHF PVHFL
FMST
The pin numbers in parenthesis represent the TDA6503 and TDA6503A.
Fig.1 Block diagram.
2000 Mar 16
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
7 PINNING PIN SYMBOL UHFIN1 UHFIN2 VHFIN RFGND IFFIL1 IFFIL2 PVHFL PVHFH PUHF FMST SW CE/AS DA CL LOCK/ADC CP VT XTAL VCC IFOUT GND VHFOSCIB OSCGND VHFOSCOC UHFOSCIB1 UHFOSCOC1 UHFOSCOC2 UHFOSCIB2 TDA6502; TDA6502A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 TDA6503; TDA6503A 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 UHF RF input 1 UHF RF input 2 VHF RF input RF ground IF filter output 1 IF filter output 2
TDA6502; TDA6502A; TDA6503; TDA6503A
DESCRIPTION
PMOS port output, general purpose (e.g. VHF low sub-band) PMOS port output, general purpose (e.g. VHF high sub-band) PMOS port output, UHF band PMOS port output, general purpose (e.g. FM sound trap) bus format selection input: I2C-bus mode or 3-wire bus mode chip enable input in 3-wire bus mode or address selection input in I2C-bus mode serial data input/output serial clock input lock detector output in 3-wire bus mode or ADC input in I2C-bus mode charge pump output tuning voltage output crystal oscillator input supply voltage IF output digital ground VHF oscillator input base oscillator ground VHF oscillator output collector UHF oscillator input 1 (base) UHF oscillator output 1 (collector) UHF oscillator output 2 (collector) UHF oscillator input 2 (base)
2000 Mar 16
7
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
TDA6502; TDA6502A; TDA6503; TDA6503A
handbook, halfpage
handbook, halfpage
UHFIN1 1 UHFIN2 VHFIN RFGND IFFIL1 IFFIL2 PVHFL PVHFH PUHF 2 3 4 5 6 7 8 9
28 UHFOSCIB2 27 UHFOSCOC2 26 UHFOSCOC1 25 UHFOSCIB1 24 VHFOSCOC 23 OSCGND VHFOSCIB TDA6502 22 TDA6502A 21 GND 20 IFOUT 19 VCC 18 XTAL 17 VT 16 CP 15 LOCK/ADC
FCE570
UHFOSCIB2 UHFOSCOC2 UHFOSCOC1 UHFOSCIB1 VHFOSCOC OSCGND VHFOSCIB GND IFOUT
1 2 3 4 5 6 7 8 9
28 UHFIN1 27 UHFIN2 26 VHFIN 25 RFGND 24 IFFIL1 23 IFFIL2
TDA6503 TDA6503A 21 PVHFH
20 PUHF 19 FMST 18 SW 17 CE/AS 16 DA 15 CL
FCE571
22 PVHFL
FMST 10 SW 11 CE/AS 12 DA 13 CL 14
VCC 10 XTAL 11 VT 12 CP 13 LOCK/ADC 14
Fig.2
Pin configuration for TDA6502 and TDA6502A.
Fig.3
Pin configuration for TDA6503 and TDA6503A.
8 8.1
FUNCTIONAL DESCRIPTION Control mode selection
The device is controlled via the I2C-bus or the 3-wire bus, depending on the voltage applied to pin SW (see Table 2). A LOW level on pin SW enables the I2C-bus: pins CE/AS, DA and CL are used as address selection (AS), serial data (SDA) and serial clock (SCL) input respectively. A HIGH level on pin SW enables the 3-wire bus: pins CE/AS, DA and CL are used as chip enable (CE), data and clock inputs respectively. Table 2 Bus format selection PIN SYMBOL SW CE/AS DA CL LOCK/ADC TDA6502; TDA6502A 11 12 13 14 15 TDA6503; TDA6503A 18 17 16 15 14 I2C-BUS MODE LOW-level voltage or ground address selection input serial data input serial clock input ADC input or test output 3-WIRE BUS MODE HIGH-level voltage or open-circuit enable input data input clock input lock detector output or test output
2000 Mar 16
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
8.2 8.2.1 I2C-bus data format I2C-BUS ADDRESS SELECTION
TDA6502; TDA6502A; TDA6503; TDA6503A
The module address contains programmable address bits MA1 and MA0 (see Tables 3, 4 and 9) which offer the possibility of having several synthesizers (up to 4) in one system by applying a specific voltage on pin CE/AS. The relationship between bits MA1 and MA0 and the input voltage applied to pin CE/AS is given in Table 6. 8.2.2 WRITE MODE
The bus transceiver has an auto-increment facility which permits the programming of the device within one single transmission (address byte + 4 data bytes). The device can also be partially programmed providing that the first data byte following the address byte is divider byte DB1 or the control byte CB. The first bit of byte DB1 indicates whether frequency data (first bit = 0) or control and band-switch data (first bit = 1) will follow. Until an I2C-bus STOP command is sent by the controller, additional data bytes can be entered without the need to re-address the device. The frequency register is loaded after the 8th clock pulse of byte DB2, the control register is loaded after the 8th clock pulse of the byte CB and the band-switch register is loaded after the 8th clock pulse of byte BB.
The write mode is defined by the address byte ADB with bit R/W = 0 (see Tables 3 and 4). Data bytes can be sent to the device after the address transmission (first byte). Four data bytes are needed to fully program the device. Table 3
I2C-bus data format for write mode of TDA6502 and TDA6503 BITS NAME BYTE MSB LSB 1 N14 N6 CP X 0 N13 N5 T2 X 0 N12 N4 T1 X 0 N11 N3 T0 FMST MA1 N10 N2 RSA PUHF MA0 N9 N1 RSB PVHFH R/W = 0 N8 N0 OS PVHFL ADB DB1 DB2 CB BB 1 0 N7 1 X
Address byte Divider byte 1 Divider byte 2 Control byte Band-switch byte Table 4
I2C-bus data format for write mode of TDA6502A and TDA6503A BIT NAME BYTE MSB LSB 1 N14 N6 CP X 0 N13 N5 T2 X 0 N12 N4 T1 X 0 N11 N3 T0 PUHF MA1 N10 N2 RSA FMST MA0 N9 N1 RSB PVHFH R/W = 0 N8 N0 OS PVHFL ADB DB1 DB2 CB BB 1 0 N7 1 X
Address byte Divider byte 1 Divider byte 2 Control byte Band-switch byte
2000 Mar 16
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
Table 5 Description of the bits used in Tables 3 and 4 BIT MA1 and MA0 R/W N14 to N0 CP logic 0 for write mode
TDA6502; TDA6502A; TDA6503; TDA6503A
DESCRIPTION programmable address bits (see Table 6) programmable divider bits: N = N14 x 214 + N13 x 213 + ... + N1 x 21 + N0 charge pump current control bit: logic 0: charge pump current is 60 A logic 1: charge pump current is 280 A (default)
T2, T1 and T0 RSA and RSB OS
test bits (see Table 7) reference divider ratio select bits (see Table 8) tuning amplifier control bit: logic 0: tuning voltage is `on' (during normal operating) logic 1: tuning voltage is `off'; high-impedance output of pin VT (default)
PVHFL, PVHFH, PUHF and FMST
PMOS ports control bits: logic 0: corresponding buffer is `off' (default) logic 1: corresponding buffer is `on'
X Table 6
don't care Address selection bits (I2C-bus mode) MA0 0 1 0 1 0 V to 0.1VCC 0.2VCC to 0.3VCC or open-circuit 0.4VCC to 0.6VCC 0.9VCC to 1.0VCC VOLTAGE APPLIED TO PIN CE/AS
MA1 0 0 1 1 Table 7 T2 0 0 0 1 1 1 1 Notes Test mode bits T1 0 0 1 1 1 0 0
T0 0 1 X 0 1 0 1 normal mode normal mode (note 1) charge pump is off charge pump is sinking current charge pump is sourcing current
TEST MODE
fREF is available on pin LOCK/ADC (note 2) 1 f 2 DIV is available on pin LOCK/ADC (note 2)
1. This is the default mode at Power-on reset. 2. The ADC input cannot be used when these test modes are active; see Section 8.2.3 for more information.
2000 Mar 16
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
Table 8 Reference divider ratio select bits RSB 0 1 1 REFERENCE DIVIDER RATIO 80 128 64
TDA6502; TDA6502A; TDA6503; TDA6503A
RSA X 0 1 8.2.3 READ MODE
FREQUENCY STEP (kHz) 50 31.25 62.5
The read mode is defined by the address byte ADB with bit R/W = 1 (see Table 9). After the slave address has been recognized, the device generates an acknowledge pulse and status byte SB is transferred on the SDA line (MSB first). Data is valid on the SDA line during a HIGH level of the SCL line. A second data byte can be read from the device if the microcontroller generates an acknowledge on the SDA line (master acknowledge). End of transmission will occur if no master acknowledge occurs. The device will then release the data line to allow the microcontroller to generate a STOP condition. Bit POR is set to logic 1 at power-on. The bit is reset when an end-of-data is detected by the device (end of a read sequence). Control of the loop is made possible with bit FL which indicates when the loop is locked (bit FL = 1) A built-in ADC input is available on pin LOCK/ADC (I2C-bus mode only). This converter can be used to apply AFC information to the microcontroller of the IF section of the television. Table 9 Read data format BIT NAME Address byte Status byte Note 1. MSB is transmitted first. Table 10 Description of the bits used in Table 9 BIT MA1 and MA0 R/W POR programmable address bits (see Table 6) logic 1 for read mode Power-on reset flag: logic 0: at power-off logic 1: at power-on FL in-lock flag: logic 0: loop is not locked logic 1: loop is locked R ready flag: logic 0: mode after Power-on reset (bit T2 = 0, bit T1 = 0 and bit T0 = 1) and the PLL is locked logic 1: in other conditions A2, A1 and A0 digital outputs of the 5-level ADC (see Table 11) DESCRIPTION BYTE ADB SB MSB(1) 1 POR 1 FL 0 R 0 1 0 1 MA1 A2 MA0 A1 LSB R/W = 1 A0
2000 Mar 16
11
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
Table 11 Digital outputs for analog input levels (note 1) A2 0 0 0 0 1 Note 1. Accuracy is 0.03 x VCC. 8.2.4 POWER-ON RESET A1 0 0 1 1 0 A0 0 1 0 1 0
TDA6502; TDA6502A; TDA6503; TDA6503A
VOLTAGE APPLIED TO PIN LOCK/ADC 0 to 0.15VCC 0.15VCC to 0.30VCC 0.30VCC to 0.45VCC 0.45VCC to 0.60VCC 0.60VCC to 1.00VCC
The power-on detection threshold voltage VPOR is set to 3.2 V at room temperature. Below this threshold the device is reset to the power-on state. At power-on state the following actions take place: * The charge pump current is set to 280 A * The tuning voltage output is disabled * The test bits T2, T1 and T0 are set to logic `001' * The divider bit RSB is set to logic 1 * Port register UHF is `off', which means that the UHF oscillator and the UHF mixer are switched off. Consequently, the VHF oscillator and the VHF mixer are switched on. Port registers VHFL and VHFH are `off', which means that the VHF tank circuit is operating in the VHF low sub-band. The tuning amplifier is switched off until the first transmission. In that case, the tank circuit is supplied with the maximum tuning voltage. The oscillator is therefore operating at the end of the VHF low sub-band. Table 12 Default setting of the bits at Power-on reset BITS NAME Address byte Divider byte 1 Divider byte 2 Control byte Band switch byte BYTE MSB ADB DB1 DB2 CB BB 1 0 X 1 X 1 X X 1 X 0 X X 0 X 0 X X 0 X 0 X X 1 0 MA1 X X X 0 MA0 X X 1 0 LSB X X X 1 0
2000 Mar 16
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
8.3 3-wire bus data format 8.3.1
TDA6502; TDA6502A; TDA6503; TDA6503A
POWER-ON RESET
During a HIGH level on pin CE/AS (enable line), the data is clocked into the data register at the HIGH-to-LOW transition of the clock (see Figs 4 and 5). The first four bits control the PMOS ports and are loaded into the internal band-switch register on the 5th rising edge of the clock pulse. The frequency bits are loaded into the frequency register at the HIGH-to-LOW transition of the enable line when an 18-bit or 19-bit data word is transmitted. When a 27-bit data word is transmitted, the frequency bits are loaded into the frequency register on the 20th rising edge of the clock pulse and the control bits at the HIGH-to-LOW transition of the enable line (see Fig.6). In this control mode the reference divider is given by bits RSA and RSB (see Table 8). The test bits T2, T1 and T0, the charge pump bit CP, the ratio select bit RSB and bit OS can only be selected or changed with a 27-bit transmission. They remain programmed if an 18-bit or 19-bit transmission occurs. Only bit RSA is controlled by the transmission length when the 18-bit or 19-bit format is used. When an 18-bit data word is transmitted, the most significant bit of the divider (bit N14) is internally set to logic 0 and bit RSA is set to logic 1. When a 19-bit data word is transmitted, bit RSA is set to logic 0. It is not allowed to address the devices with words whose length is different from 18, 19 or 27 bits. A data word of less than 18 bits will not affect the frequency register of the device. The definition of the bits is unchanged compared to the I2C-bus mode.
The power-on detection threshold voltage VPOR is set to 3.2 V at room temperature. Below this threshold the device is reset to the power-on state. At power-on state the following actions take place: * The charge pump current is set to 280 A * The test bits T2, T1 and T0 are set to logic `001' * The divider bit RSB is set to logic 1 * The tuning voltage output is disabled * The tuning amplifier control bit OS is automatically reset to logic 0 in 18-bit and 19-bit modes when the first data word is received to allow normal operation * Port register UHF is `off', which means that the UHF oscillator and the UHF mixer are switched off. Consequently, the VHF oscillator and the VHF mixer are switched on. Port registers VHFL and VHFH are `off', which means that the VHF tank circuit is operating in the VHF low sub-band. The tuning amplifier is switched off until the first transmission. In that case, the tank circuit is supplied with the maximum tuning voltage. The oscillator is therefore operating at the end of the VHF low sub-band * The reference divider ratio is set to 64 or 128 if the first sequence to the device has 18 bits or 19 bits; if the sequence has 27 bits, the reference divider ratio is set by bits RSA and RSB (see Table 8).
2000 Mar 16
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
TDA6502; TDA6502A; TDA6503; TDA6503A
handbook, full pagewidth
INVALID DATA
BAND-SWITCH DATA FMST PUHF PVHFL N13 N12 N11 N10 N9 N8
FREQUENCY DATA
INVALID DATA
PVHFH
N7
N6
N5
N4
N3
N2
N1
N0
DA
1 CL
4
5
18
CE
LOAD BAND-SWITCH REGISTER
LOAD FREQUENCY REGISTER
FCE572
Fig.4 18-bit data format (bit RSA = 1).
handbook, full pagewidth INVALID
DATA
BAND-SWITCH DATA FMST PUHF PVHFL N14 N13 N12 N11 N10 N9
FREQUENCY DATA
INVALID DATA
PVHFH
N8
N7
N6
N5
N4
N3
N2
N1
N0
DA
1 CL
4
5
19
CE
LOAD BAND-SWITCH REGISTER
LOAD FREQUENCY REGISTER
FCE573
Fig.5 19-bit data format (bit RSA = 0).
2000 Mar 16
14
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
TDA6502; TDA6502A; TDA6503; TDA6503A
handbook, fullINVALID pagewidth
DATA
BAND-SWITCH DATA FMST PUHF PVHFL
FREQUENCY DATA
TEST AND FEATURES DATA
INVALID DATA
PVHFH
N14 N13 N12
N2
N1
N0
X
CP
T2
T1
T0 RSA RSB OS
DA
1 CL
4
5
19
20
27
CE
LOAD BAND-SWITCH REGISTER
LOAD FREQUENCY REGISTER
LOAD CONTROL REGISTER
FCE574
Fig.6 27-bit data format; test and features mode.
2000 Mar 16
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
9 LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134); note 1. PIN SYMBOL VCC TDA6502; TDA6503; TDA6502A TDA6503A 19 10 PARAMETER DC supply voltage
TDA6502; TDA6502A; TDA6503; TDA6503A
MIN. -0.3
MAX. +6 8 VCC +0.3 +30 VCC +0.3 VCC+ 0.3 +35 VCC +0.3 +6 +6 +10 +6 VCC +0.3 -10 10 V V V
UNIT
OVS pulse time is 1 s; maximum current is - 1A VPn IPn VCP VSW VVT VLOCK/ADC VCL VDA IDA VCE/AS VXTAL IO(n) tsc(max) 7 to 10 7 to 10 16 11 17 15 14 13 13 12 18 1 to 6, 19 to 28 - 19 to 22 19 to 22 13 18 12 14 15 16 16 17 11 1 to 10, 23 to 28 - PMOS port output voltage PMOS port output current charge pump output voltage bus format selection input voltage tuning voltage output lock/ADC output/input voltage serial clock input voltage serial data input/output voltage data output current (I2C-bus mode) chip enable/address selection input voltage crystal input voltage output current of each pin to ground -0.3 -1 -0.3 -0.3 -0.3 -0.3 -0.3 -0.3 -1 -0.3 -0.3 -
mA V V V V V V mA V V mA s
maximum short-circuit time (all pins to VCC - and all pins to GND, OSCGND and RFGND) storage temperature ambient temperature junction temperature -40 -20 -
Tstg Tamb Tj Note
- - -
- - -
+150 +85 150
C C C
1. Maximum ratings can not be exceeded, not even momentarily without causing irreversible IC damage. Maximum ratings can not be accumulated. 10 THERMAL CHARACTERISTICS SYMBOL Rth(j-a) PARAMETER thermal resistance from junction to ambient CONDITIONS in free air TYP. 110 UNIT K/W
2000 Mar 16
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
11 CHARACTERISTICS SYMBOL PARAMETER CONDITIONS
TDA6502; TDA6502A; TDA6503; TDA6503A
MIN.
TYP.
MAX.
UNIT
Supply; Tamb = 25 oC VCC ICC supply voltage supply current at VCC = 5 V all PMOS ports `off' one PMOS port `on' and sourcing 25 mA - - 71 103 111 78 113 122 mA mA mA 4.5 5.0 5.5 V
one PMOS port `on' and sourcing - 25 mA; a second port `on' and sourcing 5 mA PLL part; VCC = 4.5 to 5.5 V; Tamb = -20 to +85 C; unless otherwise specified FUNCTIONAL RANGE VPOR N fXTAL ZXTAL power-on reset supply voltage divider ratio crystal oscillator frequency input impedance (absolute value) below this supply voltage power-on reset becomes active 15-bit frequency word 14-bit frequency word RXTAL = 25 to 300 fXTAL = 4 MHz - 64 64 - 600
3.2 - - 4.0 1200
- 32767 16383 - -
V
MHz
PMOS PORTS: PINS PUHF, PVHFL, PVHFH AND FMST IPn(off) VPn(sat) leakage current output saturation voltage VCC = 5.5 V; VPn = 0 V VPn(sat) = VCC - VPn; one buffer output is `on' and sourcing 25 mA -10 - - 0.25 - 0.4 A V
LOCK OUTPUT: PIN LOCK/ADC (IN 3-WIRE BUS MODE) IUNLOCK VUNLOCK VLOCK VADC IADC(H) IADC(L) VSW(L) VSW(H) ISW(H) ISW(L) output current when the PLL is out-of-lock output saturation voltage when the PLL is out-of-lock output voltage VCC = 5.5 V; VO= 5.5 V VUNLOCK = VCC - VO; IO = 200 A the PLL is locked I2C-BUS MODE) see Table 11 VADC = VCC VADC = 0 V 0 - -10 0 3 VSW = VCC VSW = 0 V - -100 - - - - - - - VCC 10 - 1.5 VCC 10 - V A A V V A A - - - - 0.4 0.2 200 0.8 0.40 A V V
ADC INPUT: PIN LOCK/ADC (IN
ADC input voltage HIGH-level input current LOW-level input current
BUS FORMAT SELECTION: PIN SW LOW-level input voltage HIGH-level input voltage HIGH-level input current LOW-level input current
2000 Mar 16
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
SYMBOL PARAMETER CONDITIONS
TDA6502; TDA6502A; TDA6503; TDA6503A
MIN. - - - - - - - - - - - - - 280 60 -0.5 - - TYP. MAX. UNIT
CHIP ENABLE/ADDRESS SELECTION INPUT: PIN CE/AS VCE/AS(L) VCE/AS(H) ICE/AS(H) ICE/AS(L) VCL(L), VDA(L) VCL(H), VDA(H) LOW-level input voltage HIGH-level input voltage HIGH-level input current LOW-level input current VCE/AS = 5.5 V VCE/AS = 0 V 0 3 - -10 0 3 VBUS = 5.5 V; VCC = 0 V VBUS = 5.5 V; VCC = 5.5 V ICL(L), IDA(L) LOW-level input current VBUS = 1.5 V; VCC = 0 V VBUS = 0 V; VCC = 5.5 V DATA OUTPUT: PIN DA (IN I2C-BUS MODE ONLY) IDA(H) VDA(H) CLOCK fclk ICP(H) ICP(L) ICP(leak) IVT(off) VVT HIGH-level output current HIGH-level output voltage
FREQUENCY (I2C-BUS MODE)
1.5 5.5 10 - 1.5 5.5 10 10 10 - 10 0.4
V V A A V V A A A A A V
CLOCK AND DATA INPUTS: PINS CL AND DA LOW-level input voltage HIGH-level input voltage
ICL(H), IDA(H) HIGH-level input current
- - - -10 - - -
VDA = 5.5 V IDA = 3 mA (sink current)
clock frequency
400 - - +15
kHz A A nA A V
CHARGE PUMP OUTPUT: PIN CP HIGH-level input current (absolute value) LOW-level input current (absolute value) off-state leakage current CP = 1 CP = 0 T2 = 0; T1 = 1 - - -15 - 0.2
TUNING VOLTAGE OUTPUT: PIN VT leakage current when switched-off OS = 1; tuning supply is 33 V 10 32.7
output voltage when the loop OS = 0; T2 = 0; T1 = 0; T0 = 1; is closed RL = 27 k; tuning supply is 33 V
Mixer/oscillator part; VCC = 5 V; Tamb = 25 oC; measurements related to the measurement circuit (see Fig.19) VHF MIXER (INCLUDING IF PREAMPLIFIER) fRF(o) fRF Gv NF RF operational frequency RF frequency voltage gain noise figure note 1 fRF = 57.5 MHz; see Fig.12 fRF = 363.5 MHz; see Fig.12 fRF = 50 MHz; see Figs 13 and 14 fRF = 150 MHz; see Figs 13 and 14 fRF = 300 MHz; see Fig.14 40 55.25 17.5 17.5 - - - - 20 20 7.5 7.5 7.5 800 361.25 22.5 22.5 10 10 10 MHz MHz dB dB dB dB dB
2000 Mar 16
18
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
SYMBOL Vo Vi gos PARAMETER CONDITIONS
TDA6502; TDA6502A; TDA6503; TDA6503A
MIN. 107 107 - - - - - - - 60 TYP. 110 110 83 0.7 0.9 1.5 0.3 0.4 1.35 MAX. - - - - - - - - - 600 - 60 110 1600 400 105 30 407 - - - - - - UNIT dBV dBV dBV mS mS mS mS mS pF
output voltage (causing 1% fRF = 55.25 MHz; see Fig.15 cross modulation in channel) fRF = 361.25 MHz; see Fig.15 input voltage (causing fRF = 361.25 MHz; note 2 pulling-in channel at 750 Hz) optimum source fRF = 50 MHz conductance for noise figure fRF = 150 MHz fRF = 300 MHz input conductance input capacitance fRF = 55.25 MHz; see Fig.7 fRF = 361.25 MHz; see Fig.7 fRF = 57.5 to 357.5 MHz; see Fig.7
gi Ci fOSC(o) fOSC fOSC(V) fOSC(T) fOSC(t) OSC RSC
VHF OSCILLATOR oscillator operational frequency oscillator frequency note 3 oscillator frequency variation VCC = 5%; note 4 with supply voltage VCC = 10%; note 4 oscillator frequency variation T = 25 C; with compensation; with temperature note 5 oscillator frequency drift phase noise, carrier-to-noise 100 kHz frequency offset; worst sideband case in the frequency range ripple susceptibility of VCC (peak-to-peak value) VCC = 5 V; worst case in the frequency range; ripple frequency 500 kHz; note 7 MHz MHz kHz kHz kHz kHz dBc/Hz mV
101 - - -
5 s to 15 min after switch-on; note 6 - - 15
UHF MIXER (INCLUDING IF PREAMPLIFIER) fRF(o) fRF Gv NF Vo Vi RF operational frequency RF frequency voltage gain noise figure (not corrected for image) note 1 fRF = 369.5 MHz; see Fig.16 fRF = 803.5 MHz; see Fig.16 fRF = 369.5 MHz; see Fig.17 fRF = 803.5 MHz; see Fig.17 200 367.25 29 29 - - 107 107 - - 32 32 7 7 110 110 85 900 801.25 35 35 9 9 - - - MHz MHz dB dB dB dB dBV dBV dBV
output voltage (causing 1% fRF = 367.25 MHz; see Fig.18 cross modulation in channel) fRF = 801.25 MHz; see Fig.18 input voltage (causing fRF = 801.25 MHz; note 2 pulling in channel at 750 Hz)
2000 Mar 16
19
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
SYMBOL Zi PARAMETER CONDITIONS
TDA6502; TDA6502A; TDA6503; TDA6503A
MIN. - - - - 300 TYP. 26 28 8.5 8 MAX. - - - - 1000 - 35 100 500 120 105 30 847 - - - - - - UNIT nH nH
input impedance (RS + jLS) RS at fRF = 367.25 MHz; see Fig.8 RS at fRF = 801.25 MHz; see Fig.8 LS at fRF = 367.25 MHz; see Fig.8 LS at fRF = 801.25 MHz; see Fig.8
UHF OSCILLATOR fOSC(o) fOSC fOSC(V) fOSC(T) fOSC(t) OSC RSC oscillator operational frequency oscillator frequency note 3 oscillator frequency variation VCC = 5%; note 4 with supply voltage VCC = 10%; note 4 oscillator frequency variation T = 25 C; with compensation; with temperature note 5 oscillator frequency drift 5 s to 15 min after switching on; note 6 MHz MHz kHz kHz kHz kHz dBc/Hz mV
413 - - - - - 15
phase noise, carrier-to-noise 100 kHz frequency offset; worst sideband case in the frequency range ripple susceptibility of VCC (peak-to-peak value) VCC = 5 V; worst case in the frequency range; ripple frequency 500 kHz; note 7
IF PREAMPLIFIER IF S22 Zo IF operational frequency output reflection coefficient output impedance (RS + jLS) magnitude; see Fig.9 phase; see Fig.9 RS at 43.5 MHz; see Fig.9 LS at 43.5 MHz; see Fig.9 worst case; note 8 VIF = 100 dBV; worst case in the frequency range; note 9 VIF = 100 dBV; worst case in the frequency range; fREF = 62.5 kHz; note 10 VRF(pix) = VRF(snd) = 80 dBV; note 11 VRF(pix) = 80 dBV; note 12 30 - - - - - 60 60 -12.8 0.2 80 0.5 60 - - - - 20 - - MHz dB degree nH
REJECTION AT THE IF OUTPUT INTdiv INTxtal INTref level of divider interferences in the IF signal crystal oscillator interferences rejection reference frequency rejection channel 6 beat channel A-5 beat 16 - - dBV dBc dBc
INTch6 INTchA-5 Notes
tbf tbf
54 60
- -
dBc dBc
1. The RF frequency range is defined by the oscillator frequency range and the IF frequency. 2. This is the level of the RF signal (100% amplitude modulated with 11.89 kHz) that causes a 750 Hz frequency deviation on the oscillator signal; it produces sidebands 30 dB below the level of the oscillator signal. 3. Limits are related to the tank circuits used in Fig.19; frequency bands may be adjusted by the choice of external components.
2000 Mar 16
20
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
TDA6502; TDA6502A; TDA6503; TDA6503A
4. The frequency shift is defined as a change in oscillator frequency when the supply voltage varies from VCC = 5 to 4.75 V (4.5 V) or from VCC = 5 to 5.25 V (5.5 V). The oscillator is free running during this measurement. 5. The frequency drift is defined as a change in oscillator frequency when the ambient temperature varies from Tamb = 25 to 50 C or from Tamb = 25 to 0 C. The oscillator is free running during this measurement. 6. Switch-on drift is defined as the change in oscillator frequency between 5 s and 15 min after switch-on. The oscillator is free running during this measurement. 7. The ripple susceptibility is measured for a 500 kHz ripple at the IF output using the measurement circuit of Fig.19; the level of the ripple signal is increased until a difference of 53.5 dB occurs between the IF carrier fixed at 100 dBV and the sideband components. 8. This is the level of divider interferences close to the IF frequency. For example channel C: fOSC = 179 MHz, 1 f 4 OSC = 44.75 MHz. The VHFIN input must be left open (i.e. not connected to any load or cable); The UHFIN1 and UHFIN2 inputs are connected to a hybrid. 9. Crystal oscillator interference means the 4 MHz sidebands caused by the crystal oscillator. The rejection has to be greater than 60 dB for an IF output signal of 100 dBV. 10. The reference frequency rejection is the level of reference frequency sidebands related to the sound sub-carrier. 11. Channel 6 beat is the interfering product of fRF(pix) + fRF(snd) - fOSC of channel 6 at 42 MHz. 12. Channel A-5 beat is the interfering product of fRF(pix), fIF and fOSC of channel A-5: fbeat = 45.5 MHz. The possible mechanisms are: fOSC - 2 x fIF or 2 x fRF(pix) - fOSC. For the measurement: VRF = 80 dBV.
handbook, full pagewidth
1 2 0.5
5 10
0.2
-j 10 5 2 1 0.5 0.2 40 MHz 0 +j
10
400 MHz 5 0.2
2 1
0.5
FCE528
Fig.7 Input admittance (S11) of the VHF mixer input (40 to 400 MHz); Y0 = 20 mS.
2000 Mar 16
21
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
TDA6502; TDA6502A; TDA6503; TDA6503A
handbook, full pagewidth
1 0.5 2
0.2 350 MHz +j 0 -j 0.2 0.5
860 MHz
5 10
1
2
5
10
10
0.2
5
0.5 1
2
FCE529
Fig.8 Input impedance (S11) of the UHF mixer input (350 to 860 MHz); Z0 = 50 .
handbook, full pagewidth
1 0.5 2
0.2
5 10
+j 0 -j 0.2 0.5 1
20 MHz 100 MHz
2
5
10
10
0.2
5
0.5 1
2
FCE530
Fig.9 Output impedance (S22) of the IF amplifier (20 to 60 MHz); Z0 = 50 .
2000 Mar 16
22
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
12 TIMING CHARACTERISTICS SYMBOL 3-wire bus timing tHIGH tSU;DA tHD;DA tSU;ENCL tHD;ENDA tEN tHD;ENCL clock HIGH time data set-up time data hold time enable-to-clock set-up time enable-to-data hold time enable time between two transmissions enable-to-clock active edge hold time see Fig.10 see Fig.10 see Fig.10 see Fig.10 see Fig.10 see Fig.11 see Fig.11 PARAMETER CONDITIONS
TDA6502; TDA6502A; TDA6503; TDA6503A
MIN. s s s s s s s
UNIT
2 2 2 10 2 10 6
handbook, full pagewidth
INVALID DATA
INVALID DATA
DA
MSB
LSB
CL tHIGH tSU;DA tHD;DA CE
tSU;ENCL
tHD;ENDA
FCE575
Fig.10 Timing diagram for 3-wire bus; DA, CL and CE.
handbook, halfpage
tEN
CE
CL tHD;ENCL
FCE576
Fig.11 Timing diagram for 3-wire bus; CE and CL.
2000 Mar 16
23
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
13 TEST AND APPLICATION INFORMATION 13.1 Test circuits
TDA6502; TDA6502A; TDA6503; TDA6503A
handbook, full pagewidth
50
signal source VHFIN IFOUT
27 spectrum analyzer Vo V'meas 50
e
Vmeas V
50
Vi
D.U.T.
RMS voltmeter
FCE577
Zi >> 50 Vi = 2 x Vmeas = 80 dBV Vi = Vmeas + 6 dB = 80 dBV 50 + 27 Vo = V'meas x -----------------50 Vo Gv = 20 log ----Vi
Fig.12 Gain measurement in VHF band.
handbook, full pagewidth
I1 BNC C1
PCB BNC C3
I3
PCB
L1
C2
plug RIM-RIM
I2
plug RIM-RIM
C4
(a)
(b)
FCE578
(a) For fRF = 50 MHz: mixer A frequency response measured = 57 MHz, loss = 0 dB image suppression = 16 dB C1 = 9 pF C2 = 15 pF L1 = 7 turns ( 5.5 mm, wire = 0.5 mm) l1 = semi rigid cable (RIM) of 5 cm long (semi rigid cable (RIM); 33 dB/100 m; 50 ; 96 pF/m).
(b) For fRF = 150 MHz: mixer A frequency response measured = 150.3 MHz, loss = 1.3 dB image suppression = 13 dB C3 = 5 pF C4 = 25 pF l2 = semi rigid cable (RIM): 30 cm long l3 = semi rigid cable (RIM) of 5 cm long (semi rigid cable (RIM); 33 dB/100 m; 50 ; 96 pF/m).
Fig.13 Input circuit for optimum noise figure in VHF band.
2000 Mar 16
24
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
TDA6502; TDA6502A; TDA6503; TDA6503A
handbook, full pagewidth
NOISE SOURCE
27 BNC RIM VHFIN IFOUT
NOISE FIGURE METER
INPUT CIRCUIT
D.U.T.
FCE579
NF = NFmeas - loss (of input circuit) (dB).
Fig.14 Noise figure (NF) measurement in VHF band.
handbook, full pagewidth
FILTER 50 AM = 30% 2 kHz unwanted signal source 50 B D 50 RMS voltmeter 27 A C VHFIN IFOUT 45.75 MHz HYBRID D.U.T. Vo V Vmeas 18 dB attenuator modulation analyzer 50
eu
ew
wanted signal source
FCE580
50 + 27 Vo = Vmeas x -----------------50 Wanted output signal at fRF(w) = 55.25 (361.25) MHz; Vo(w) = 100 dBV. Measuring the level of the unwanted output signal Vo(u) causing 0.3% AM modulation in the wanted output signal; fRF(u) = 59.75 (366.75) MHz. fOSC = 101 (407) MHz. Filter characteristics: fc = 45.75 MHz, f-3 dB(BW) = 1.4 MHz, f-30 dB(BW) = 3.1 MHz.
Fig.15 Cross modulation measurement in VHF band.
2000 Mar 16
25
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
TDA6502; TDA6502A; TDA6503; TDA6503A
handbook, full pagewidth
50
signal source A C UHFIN1 IFOUT
27 spectrum analyzer Vo V'meas 50
e
Vmeas V
50
Vi
HYBRID
D.U.T.
B RMS 50 voltmeter
D
UHFIN2
FCE581
Loss (in hybrid) = 1 dB. Vi = Vmeas - loss (in hybrid) = 70 dBV. 50 + 27 Vo = V'meas x -----------------50 Vo Gv = 20 log ----Vi
Fig.16 Gain (Gv) measurement in UHF band.
handbook, full pagewidth
NOISE SOURCE
27 A C UHFIN IFOUT
NOISE FIGURE METER
HYBRID
D.U.T.
B 50
D
UHFIN
FCE582
Loss (in hybrid) = 1 dB. NF = NFmeas - loss (in hybrid).
Fig.17 Noise figure (NF) measurement in bands UHF.
2000 Mar 16
26
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
TDA6502; TDA6502A; TDA6503; TDA6503A
handbook, full pagewidth
FILTER A C A C 27 UHFIN IFOUT 45.75 MHz HYBRID HYBRID D.U.T. Vo V Vmeas 18 dB attenuator modulation analyzer 50
AM = 30% 50 2 kHz eu unwanted signal source 50
B ew wanted signal source
D 50
B 50
D
UHFIN RMS voltmeter
FCE583
50 + 27 Vo = Vmeas x -----------------50 Wanted output signal at fRF(w) = 367.25 (801.25) MHz; Vo(w) = 100 dBV. Measuring the level of the unwanted output signal Vo(u) causing 0.3% AM modulation in the wanted output signal; fRF(u) = 371.25 (805.75) MHz. fOSC = 413 (847) MHz. Filter characteristics: fc = 45.75 MHz, f-3 dB(BW) = 1.4 MHz, f-30 dB(BW) = 3.1 MHz.
Fig.18 Cross modulation measurement in UHF band.
2000 Mar 16
27
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D4 LED D5 LED D6 LED D7 LED
13.2
Philips Semiconductors
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
W1 W2
C1 4.7 nF W3 C2 4.7 nF C3 4.7 nF C4 15 pF C5 15 pF L4
UHFIN1 UHFIN2 VHFIN
1(28) 2(27) 3(26)
28(1) 27(2) 26(3) 25(4) 24(5)
UHFOSCOC2 UHFOSCIB2 UHFOSCOC1 UHFOSCIB1 VHFOSCOC
C8 1.2 pF C9 1.2 pF C10 1.2 pF C11 1.2 pF C13 2 pF BB178 D2 L2 C14 C16 2 pF L5 4.7 nF C18 4.7 nF D3 R9 BA792 C15 82 pF L3 L1 R2 27
R3
Measurement circuit
22 k D1 BB179 R4 C12 27 pF 22 k R5 R6 5.6 C17 4.7 nF R7 10 k C6 R8 22 nF VHF-HIGH 680 VHF-LOW 22 k
RFGND 4(25) IFFIL1 5(24) IFFIL2 PVHFL PVHFH PUHF FMST 6(23)
23(6) OSCGND VHFOSCIB
R15 330 R16 330 R17 330 R18 330
7(22) TDA6502/2A 22(7)
(TDA6503/3A)
8(21) 9(20) 10(19)
21(8) GND 20(9) IFOUT VCC VCC Y1
C19 4.7 nF C20 18 pF CON3 R14 2.2 k
19(10)
3.9 k R10 3.9 k
CON4 SW 11(18)
18(11) XTAL 17(12) VT 16(13) CP
for test purpose only VCC CON1
open for 3-wire
CE/AS DA CL
12(17) 13(16) 14(15)
CLOCK GND DATA
+5 V
EN/AS
LOCK
handbook, full pagewidth
+33 V
for test purpose only
The pin numbers in brackets represent the TDA6503 and TDA6503A.
Fig.19 Measurement circuit.
GND
+5 V
VS
28
C21
R12 12 k C22 330 pF
J1 R13 22 k
C23 10 nF
100 nF 15(14) LOCK/ADC R22 330
TR1 BC847B R26 6.8 k C27 10 F (16 V) C26 10 F (16 V)
R21 330
R20 330
R19 330
R11 27 R25 1 k R24 68 k 01 02 03 04 05 06 J3 TR2 BC847B J2 04 03 02 01
FCE481
LOCK/ADC
TDA6502; TDA6502A; TDA6503; TDA6503A
for test purpose only
Preliminary specification
RIPPLE
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
Table 13 Capacitors (all SMD and NP0) COMPONENT C1 C2 C3 C4 C5 C6 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C26 C27 Table 14 Resistors (all SMD) COMPONENT R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 2000 Mar 16 27 22 k 22 k 22 k 5.6 10 k 680 3.9 k 3.9 k 27 12 k 22 k 2.2 k 29 Y1 Table 18 Crystal L4 Note VALUE 4.7 nF 4.7 nF 4.7 nF 15 pF 15 pF 22 nF 1.2 pF (N750) 1.2 pF (N750) 1.2 pF(N750) 1.2 pF (N750) 27 pF (N750) 2 pF (N750) 2 pF (N750) 82 pF (N750) 4.7 nF 4.7 nF 4.7 nF 4.7 nF 18 pF 100 nF 330 pF 10 nF 10 F (16 V, electrolytic) 10 F (16 V, electrolytic) L1 L2 L3 L5 Note D1 D2 D3 IC VALUE R15 R16 R17 R18 R19 R20 R21 R22 R24 R25 R26
TDA6502; TDA6502A; TDA6503; TDA6503A
COMPONENT 330 330 330 330 330 330 330 330 68 k 1 k 6.8 k VALUE
Table 15 Diodes and ICs COMPONENT BB179 BB178 BA792 TDA6502; TDA6502A TDA6503; TDA6503A VALUE
Table 16 Coils (note 1) COMPONENT VALUE 1.5 turns; diameter 1.5 mm 2.5 turns; diameter 2.5 mm 7.5 turns; diameter 3.0 mm 2.5 turns; diameter 2.5 mm
1. Wire size is 0.4 mm. Table 17 Transformer (note 1) COMPONENT VALUE 2 x 5 turns
1. Coil type: TOKO 7kN; material: 113 kN; screw core: 03-0093; pot core: 04-0026.
COMPONENT 4 MHz
VALUE
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
Table 19 Transistors COMPONENT TR1 TR2 13.3 Tuning amplifier BC847B BC847B VALUE 13.5
TDA6502; TDA6502A; TDA6503; TDA6503A
Examples of I2C-bus data format sequences for TDA6502 and TDA6503
Tables 20 to 24 show the various write sequences where: S = START bit A = acknowledge bit P = STOP bit. Conditions: fxtal = 4 MHz N = 1600 fosc = 100 MHz fstep = 62.5 kHz Port register VHFL is `on' to switch-on band VHF low Port register FMST is `on' to switch-on an FM sound trap ICP = 280 A.
The tuning amplifier is capable of driving the varicap voltage without an external transistor. The tuning voltage output must be connected to an external load of 27 k which is connected to the tuning voltage supply rail. The loop filter design depends on the oscillator characteristics and the selected reference frequency. 13.4 Crystal oscillator
The crystal oscillator uses a 4 MHz crystal connected in series with an 18 pF capacitor thereby operating in the series resonance mode. Connecting the crystal to the ground is preferred, but it can also be connected to the supply voltage. 13.5.1 WRITE SEQUENCES TO REGISTER C2
Table 20 Complete sequence with first the divider bytes (first data bit = 0) START S ADDRESS ACK BYTE C2 A DIVIDER BYTE 1 06 ACK A DIVIDER BYTE 2 40 ACK A CONTROL ACK BYTE CE A BANDSWITCH BYTE 09 ACK STOP A P
Table 21 Complete sequence with first the control and band-switch bytes (first data bit = 1) START S ADDRESS CONTROL ACK ACK BYTE BYTE C2 A CE A BANDSWITCH BYTE 09 ACK A DIVIDER BYTE 1 06 ACK A DIVIDER BYTE 2 40 ACK STOP A P
Table 22 Sequence with divider bytes only (first data bit = 0) START S ADDRESS BYTE C2 ACK A DIVIDER BYTE 1 06 ACK A DIVIDER BYTE 2 40 ACK STOP A P
Table 23 Sequence with control and band-switch bytes only (first data bit = 1) START S ADDRESS BYTE C2 ACK A CONTROL BYTE CE ACK A BAND-SWITCH BYTE 09 ACK STOP A P
Table 24 Sequence with control byte only (first data bit = 1) START S 2000 Mar 16 ADDRESS BYTE C2 ACK A 30 CONTROL BYTE CE ACK STOP A P
Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
13.5.2 READ SEQUENCES FROM REGISTER C3
TDA6502; TDA6502A; TDA6503; TDA6503A
Tables 25 and 26 show the various read sequences where: S = START bit A = acknowledge bit XX = read status byte X = no acknowledge from the master means end of sequence P = STOP bit Table 25 One status byte acquisition START S ADDRESS BYTE C3 ACK A STATUS BYTE XX ACK STOP X P
Table 26 Two status bytes acquisition START S 13.6 13.6.1 ADDRESS BYTE C3 ACK A STATUS BYTE XX ACK A STATUS BYTE XX ACK STOP X P
Examples of 3-wire bus data format sequences for TDA6502 and TDA6503 18-BIT SEQUENCE
Conditions: fosc = 800 MHz Port register PUHF is `on'. Table 27 18-bit sequence PUHF FMST PVHFH PVHFL 1 0 0 0 N13 1 N12 1 N11 1 N10 0 N9 0 N8 1 N7 0 N6 0 N5 0 N4 0 N3 0 N2 0 N1 0 N0 0
The reference divider is automatically set to 64 assuming that bit RSB has been set to logic 1 at power-on. If bit RSB has been set to logic 0, in a previous 27-bit sequence, the reference divider will still be set at 80. In this event, the 18-bit sequence has to be adapted to the 80 divider ratio. 13.6.2 19-BIT SEQUENCE
Conditions: fosc = 650 MHz Port register PUHF is `on'. Table 28 19-bit sequence PUHF FMST PVHFH PVHFL N14 1 0 0 0 1 N13 0 N12 1 N11 0 N10 0 N9 0 N8 1 N7 0 N6 1 N5 0 N4 0 N3 0 N2 0 N1 0 N0 0
The reference divider is automatically set to 128 assuming that bit RSB has been set to logic 1 at power-on. If bit RSB has been set to logic 0 in a previous 27-bit sequence, the reference divider will still be set at 80. In this event, the 19-bit sequence has to be adapted to the 80 divider ratio.
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
13.6.3 27-BIT SEQUENCE
TDA6502; TDA6502A; TDA6503; TDA6503A
Conditions: fosc = 750 MHz Port register PUHF is `on' Reference divider is set at 80 ICP = 60 A No test function. Table 29 27-bit sequence FREQUENCY DATA BITS PORT BITS 14 13 12 11 10 1000 0 1 1 1 0 9 1 8 0 7 1 6 0 5 0 4 1 3 1 2 0 1 0 0 0 X CP T2 T1 T0 RSA RSB OS 1 0 0 0 1 0 0 0 CONTROL DATA BITS
To change the oscillator frequency to 600 MHz in 50 kHz steps a 19-bit sequence or an 18-bit sequence can be used. The charge pump current remains at 60 A. Table 30 Changing frequency with a 19-bit sequence FREQUENCY DATA BITS PORT BITS 14 1 0 0 0 0 13 1 12 0 11 1 10 1 9 1 8 0 7 1 6 1 5 1 4 0 3 0 2 0 1 0 0 0
Table 31 Changing frequency with an 18-bit sequence FREQUENCY DATA BITS PORT BITS 13 1 0 0 0 1 12 0 11 1 10 1 9 1 8 0 7 1 6 1 5 1 4 0 3 0 2 0 1 0 0 0
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
14 INTERNAL PIN CONFIGURATION PIN SYMBOL TDA6502; TDA6502A UHFIN1 UHFIN2 1 2 TDA6503; TDA6503A 28 27 VHF - - UHF 1.0 V 1.0 V DC VOLTAGE (AVERAGE VALUE)(2)
TDA6502; TDA6502A; TDA6503; TDA6503A
EQUIVALENT CIRCUIT(1)
1 (28)
2 (27)
FCE584
VHFIN
3
26
-
-
3 (26)
FCE585
RFGND
4
25
0.0 V
0.0 V
4 (25)
FCE586
IFFIL1 IFFIL2
5 6
24 23
3.6 V 3.6 V
3.6 V 3.6 V
(24) 5
6 (23)
FCE587
PVHFL PVHFH PUHF FMST
7 8 9 10
22 21 20 19
n.a. or 4.8 V 4.8 V or n.a. n.a.
n.a. n.a. 4.8 V
7 (22) 8 (21)
n.a. or 4.8 V n.a. or 4.8 V
9 (20)
10 (19)
FCE588
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
PIN SYMBOL TDA6502; TDA6502A SW 11 TDA6503; TDA6503A 18 VHF 5.0 V UHF 5.0 V DC VOLTAGE (AVERAGE VALUE)(2)
TDA6502; TDA6502A; TDA6503; TDA6503A
EQUIVALENT CIRCUIT(1)
11 (18)
FCE189
CE/AS
12
17
1.25 V
1.25 V
12 (17)
FCE191
DA
13
16
-
-
13 (16)
FCE190
CL
14
15
-
-
14 (15)
FCE192
LOCK/ADC
15
14
4.6 V
4.6 V
15 (14)
FCE193
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
PIN SYMBOL TDA6502; TDA6502A CP 16 TDA6503; TDA6503A 13 VHF 1V UHF 1V DC VOLTAGE (AVERAGE VALUE)(2)
TDA6502; TDA6502A; TDA6503; TDA6503A
EQUIVALENT CIRCUIT(1)
16 (13)
FCE194
VT
17
12
VVT
VVT
17 (12)
FCE589
XTAL
18
11
2.6 V
2.6 V
18 (11)
FCE590
VCC IFOUT
19 20
10 9
5.0 V 2.1 V
5.0 V 2.1 V
supply voltage
20
FCE591
(9)
GND
21
8
0.0 V
0.0 V
21 (8)
FCE592
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
PIN SYMBOL TDA6502; TDA6502A OSCGND 23 TDA6503; TDA6503A 6 VHF 0.0 V UHF 0.0 V DC VOLTAGE (AVERAGE VALUE)(2)
TDA6502; TDA6502A; TDA6503; TDA6503A
EQUIVALENT CIRCUIT(1)
23 (6)
FCE593
VHFOSCIB VHFOSCOC
22 24
7 5
1.8 V 3.0 V
- -
24 (5) 22 (7)
FCE594
UHFOSCIB1 UHFOSCOC1 UHFOSCOC2 UHFOSCIB2
25 26 27 28
4 3 2 1
- - - -
1.9 V 2.9 V 2.9 V 1.9 V
25 (4) 28 (1) (2) 27 (3) 26
FCE595
Notes 1. The pin numbers in parenthesis represent the TDA6503 and TDA6503A. 2. Measured in circuit of Fig.19.
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
15 PACKAGE OUTLINE SSOP28: plastic shrink small outline package; 28 leads; body width 5.3 mm
TDA6502; TDA6502A; TDA6503; TDA6503A
SOT341-1
D
E
A X
c y HE vMA
Z 28 15
Q A2 pin 1 index A1 (A 3) Lp L 1 e bp 14 wM detail X A
0
2.5 scale
5 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A max. 2.0 A1 0.21 0.05 A2 1.80 1.65 A3 0.25 bp 0.38 0.25 c 0.20 0.09 D (1) 10.4 10.0 E (1) 5.4 5.2 e 0.65 HE 7.9 7.6 L 1.25 Lp 1.03 0.63 Q 0.9 0.7 v 0.2 w 0.13 y 0.1 Z (1) 1.1 0.7 8 0o
o
Note 1. Plastic or metal protrusions of 0.20 mm maximum per side are not included. OUTLINE VERSION SOT341-1 REFERENCES IEC JEDEC MO-150 EIAJ EUROPEAN PROJECTION
ISSUE DATE 95-02-04 99-12-27
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
16 SOLDERING 16.1 Introduction to soldering surface mount packages
TDA6502; TDA6502A; TDA6503; TDA6503A
If wave soldering is used the following conditions must be observed for optimal results: * Use a double-wave soldering method comprising a turbulent wave with high upward pressure followed by a smooth laminar wave. * For packages with leads on two sides and a pitch (e): - larger than or equal to 1.27 mm, the footprint longitudinal axis is preferred to be parallel to the transport direction of the printed-circuit board; - smaller than 1.27 mm, the footprint longitudinal axis must be parallel to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves at the downstream end. * For packages with leads on four sides, the footprint must be placed at a 45 angle to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves downstream and at the side corners. During placement and before soldering, the package must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive is cured. Typical dwell time is 4 seconds at 250 C. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. 16.4 Manual soldering
This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our "Data Handbook IC26; Integrated Circuit Packages" (document order number 9398 652 90011). There is no soldering method that is ideal for all surface mount IC packages. Wave soldering is not always suitable for surface mount ICs, or for printed-circuit boards with high population densities. In these situations reflow soldering is often used. 16.2 Reflow soldering
Reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. Several methods exist for reflowing; for example, infrared/convection heating in a conveyor type oven. Throughput times (preheating, soldering and cooling) vary between 100 and 200 seconds depending on heating method. Typical reflow peak temperatures range from 215 to 250 C. The top-surface temperature of the packages should preferable be kept below 230 C. 16.3 Wave soldering
Conventional single wave soldering is not recommended for surface mount devices (SMDs) or printed-circuit boards with a high component density, as solder bridging and non-wetting can present major problems. To overcome these problems the double-wave soldering method was specifically developed.
Fix the component by first soldering two diagonally-opposite end leads. Use a low voltage (24 V or less) soldering iron applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 C. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 C.
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
16.5
TDA6502; TDA6502A; TDA6503; TDA6503A
Suitability of surface mount IC packages for wave and reflow soldering methods SOLDERING METHOD PACKAGE WAVE REFLOW(1) suitable suitable suitable suitable suitable
BGA, LFBGA, SQFP, TFBGA HBCC, HLQFP, HSQFP, HSOP, HTQFP, HTSSOP, SMS PLCC(3), SO, SOJ LQFP, QFP, TQFP SSOP, TSSOP, VSO Notes
not suitable not not not suitable(2) recommended(3)(4) recommended(5) suitable
1. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum temperature (with respect to time) and body size of the package, there is a risk that internal or external package cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the Drypack information in the "Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods". 2. These packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink (at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version). 3. If wave soldering is considered, then the package must be placed at a 45 angle to the solder wave direction. The package footprint must incorporate solder thieves downstream and at the side corners. 4. Wave soldering is only suitable for LQFP, TQFP and QFP packages with a pitch (e) equal to or larger than 0.8 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm. 5. Wave soldering is only suitable for SSOP and TSSOP packages with a pitch (e) equal to or larger than 0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
17 DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values
TDA6502; TDA6502A; TDA6503; TDA6503A
This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. 18 LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. 19 PURCHASE OF PHILIPS I2C COMPONENTS
Purchase of Philips I2C components conveys a license under the Philips' I2C patent to use the components in the I2C system provided the system conforms to the I2C specification defined by Philips. This specification can be ordered using the code 9398 393 40011.
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
NOTES
TDA6502; TDA6502A; TDA6503; TDA6503A
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
NOTES
TDA6502; TDA6502A; TDA6503; TDA6503A
2000 Mar 16
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Philips Semiconductors
Preliminary specification
5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners
NOTES
TDA6502; TDA6502A; TDA6503; TDA6503A
2000 Mar 16
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Philips Semiconductors - a worldwide company
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For all other countries apply to: Philips Semiconductors, International Marketing & Sales Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825 (c) Philips Electronics N.V. 2000
Internet: http://www.semiconductors.philips.com
SCA 69
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
753504/02/pp44
Date of release: 2000
Mar 16
Document order number:
9397 750 06924

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