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TA1326FNG
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA1326FNG
UHF Band RF Modulator IC for VTRs
The TA1326FNG is a UHF band RF modulator IC that features PLL-based RF carrier and audio intercarrier oscillation. The TA1326FNG is compatible with PAL and NTSC television systems and is lower in cost than TA1243 or TA1297 Series devices.
Features
* * PLL-based RF oscillator for full UHF band operation (channels 21~69) SSOP16-P-225-0.65B Weight: 0.07 g (typ.)
PLL-based audio intercarrier oscillator which can support both PAL and NTSC television systems without any adjustment Formats supported: M/G/H/I/D Mode control using I2C bus RF carrier frequency (10 bits, in 1-MHz steps) Audio intercarrier frequencies (4.5 MHz, 5.5 MHz, 6.0 MHz and 6.5 MHz) P/S ratio setting (-10dB to -17dB in 1dB steps) Test pattern generator White Clip Through Mode Muted RF output on power-on and as required Terminal of Package is improved to Lead-Free.
*
* * * *
Pins numbered 2 and 7 of this product are sensitive to electrostatic discharge. When handling this product, protect the environment to avoid electrostatic discharge.
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2003-7-16
TA1326FNG
Block Diagram
Sound PLL loop filter 15 Sound VCO bypass capacitor 14 RF PLL loop filter 9
Digital VCC 16 D.VCC Phase Comp.
Analog GND 13 A.GND
RF OSC2 12
RF OSC1 11
Analog GND 10 A.GND
Charge Pump
RF Carrier OSC
Charge Pump
20.8 kHz
Sound Counter
Sound VCO RF Mod.
1/4
Phase Comp.
TPSG
Programmable Divider
62.5 kHz
White Clip
Video Mod.
Mixer
Clamp
X'tal OSC
I C Bus
2
A.VCC 1 Video signal input 2 Sound signal input 3 Analog VCC 4 4 MHz X'tal
D.GND 5 Digital GND 6 SCL 7 SDA 8 RF signal output
Some of the functional blocks, circuits, or constants in the block diagram may be omitted or simplified for explanatory purpose.
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TA1326FNG
Pin Description (VCC = 5.0 V, Ta = 25C)
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory purpose.
Pin No. Name DC Voltage (typ.) AC Voltage (typ.) Interface Note
A.VCC 500 mVp-p (80% modulation) 1 3.1 V
Sync tip clamp input. It is used by AC coupling. Video modulation depth is set by level of signal input on this pin. White clip level for IC is set internally for DC, but it will change by the high frequency-factor.
1
Video signal 2.4 V input (sync tip)
500
A.GND
A.VCC 10 k Sound signal input 0V (Normal Mode) 350 mVp-p (100% FM modulation) 2 37.5 k 37.5 k
Sound modulation depth is set by level of sound signal input on this pin. Sound pre-emphasis is applied before this pin. This pin is also used for switching test mode. Normally this pin is used at 0 V DC (used by AC coupling). H: Test Mode L (open): Normal Mode
2
A.GND
3
Analog VCC (5 V)
Analog power supply As reference signal, either 4-MHz crystal resonator can be connected to this pin for internal oscillation or external signal can be input. External Input Mode can 2 be selected using I C bus or by pulling up this pin using external resistor in Internal Oscillation Mode. 3.8 V or higher : external input 3.4 V or lower : internal oscillation (in Internal Oscillation Mode)
D.VCC (Note 1) 3.6 V 100 k 2.7 V (Internal Oscillation Mode) 4 4-MHz X'tal 4.3 V (External Input Mode) Note 1: Internal Oscillation Mode OFF Note 2: External Input Mode OFF D.GND 2 k 2 k 0.1 mA
4
(Note 2)
5
Digital GND
(0 V)
Digital ground
D.VCC Pin connected to I C bus serial clock line. Data transfer rate conforms to Fast Mode standard. D.GND
2
6
SCL
L: 1.5 V H: 2.0 V
6
1 k
3
TA1326FNG
Pin No. Name DC Voltage (typ.) AC Voltage (typ.) Interface Note
D.VCC Pin connected to I C bus serial data line. Data transfer rate conforms to Fast Mode standard. D.GND
2
7
SDA
L: 1.5 V H: 2.0 V
7
1 k ACK
A.VCC
8
RF signal output
RF signal output pin. 3.7 V 81dBV 1 k 8 Low-impedance emitter-follower output
A.GND RF oscillation frequency 2 is compared with I C bus RF setting frequency, and the error is outputted by Charge pump. 200 9 RF PLL loop filter 8 k LPF for high frequency rejection is connected to this terminal. The signal after a high frequency rejection is amplified with common-emitter amplifier, and the voltage for frequency control impressed to variable capacitor is generated. The reference frequency is 62.5 kHz. 10 Analog GND (0 V) A.VCC 11 RF OSC1 3.5 V 12 11 Analog GND Differential common-emitter Colpitts oscillator. Toshiba recommends use of a Clapp oscillator as external LC resonance circuit to reduce effects of IC parasitic capacitance and others.
8 k
D.VCC
9
D.GND
12
RF OSC2
3.5 V
A.GND
13
Analog GND (0 V)
A.VCC
Analog GND
14
8.7 k
Sound VCO bypass capacitor
14
6 k
Bypass capacitor pin used by sound VCO to reduce bias noise. The smaller the external capacitance, the worse the sound S/N. A.GND
4
TA1326FNG
Pin No. Name DC Voltage (typ.) AC Voltage (typ.) Interface Note Sound VCO oscillation frequency is compared 2 with I C bus intercarrier sound setting frequency, and the error is outputted by Charge pump. LPF for high frequency rejection is connected to this terminal. And the voltage for sound VCO control is generated. The reference frequency is 20.8 kHz. 16 Digital VCC (5 V) Digital power supply
D.VCC 1 k 1 k
15
Sound PLL loop filter
15
2 k
D.GND
I C-Bus Data Format
MSB Address Byte Control Byte 1 Control Byte 2 ADR C1 C2 1 1 WO 0 N3 1 (Note 3) PSA TPSG N2 0 (Note 3) (Note 3) N9 N1 0 (Note 3) FA1 N8 N0 1 PS2 FA0 N7 RM1 0 PS1 (Note 3) N6 RM0 1 PS0 (Note 3) N5 0 LSB 0 (Note 3) (Note 3) N4 TEST ACK ACK ACK ACK ACK ACK
2
Prog.Data Byte 1 PD1 Prog.Data Byte 2 PD2
Note 3: Don't care Bus data transmission * * * * ADR + C1 + C2 + PD1 + PD2 ADR + PD1 + PD2 + C1 + C2 ADR + C1 + C2 ADR + PD1 + PD2
1. PS2~PS0: Picture-to-sound ratio setting
P/S Ratio -10dB -11dB -12dB -13dB -14dB -15dB -16dB -17dB PS2 0 0 0 0 1 1 1 1 PS1 0 0 1 1 0 0 1 1 PS0 0 1 0 1 0 1 0 1
5
TA1326FNG
2. WO: White Clip Off Mode
1: Disables white clip function, e.g. when modulation characteristics for near-100% modulation are being checked. 0: Enables white clip function (default).
3. PSA: Power Save Mode
1: Disables power saving (default). 0: Enables power saving. The device waits for data from the bus with all blocks other than the bus decoder turned off. In Power Save Mode, the device retains all data values as long as VCC is applied. Turning VCC off and on again will trigger a power-on reset, causing all data values to be initialized.
4. FA1~FA0: Audio intercarrier frequency
FA1 0 0 1 1 FA0 0 1 0 1 Audio Intercarrier Frequency 4.5 MHz 5.5 MHz 6.0 MHz 6.5 MHz Frequency Deviation 25 kHz 50 kHz 50 kHz 50 kHz
5. TPSG: Test Pattern Signal Generator Mode
1: Enabled 0: Disabled (default)
6. N9~N0 (NA): Programmable divider data
The RF VCO oscillation frequency is calculated using the following formula. fVCO = 62.5 kHz x 16 x N + 250 kHz N = 512 x N9 + 256 x N8 + 128 x N7 + 64 x N6 + 32 x N5 + 16 x N4 + 8 x N3 + 4 x N2 + 2 x N1 + N0 The frequency varies in steps of 1 MHz. The +250-kHz term in the formula is hard-wired into the IC. The divider N is obtained by subtracting 250 kHz from the frequency setting.
6
TA1326FNG
7. Reference Signal Mode (RM1~RM0)
RM1 0 0 1 1 RM0 0 1 0 1 Reference Signal Mode External input mode Internal oscillation mode Test mode Test mode
(1)
External input mode Mode in which external 4-MHz reference signal is input. Even if a crystal resonator is connected, it cannot operate. Internal oscillation mode Mode in which 4-MHz crystal resonator is connected and reference signal is generated. As with Toshiba TA1297 Series devices, an external reference signal can be input by using a resistor to pulling up the crystal oscillator pin. Test mode Usually, this mode is not used.
(2)
(3)
8. TEST: Control of test mode
1: Test mode 0: Normal mode
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TA1326FNG
Power-on Reset Mode Specifications
Turning on the device triggers a power-on reset. The device operates in the following state until it receives data from the bus. In this mode, power saving is enabled and no RF signal is output.
* * * * * * * *
VCO oscillation frequency: 591.25 MHz (CCIR 36ch ) Broadcasting format: G (sound intercarrier frequency: 5.5 MHz, FM deviation: 50 kHz) P/S ratio: -13dB White clip: ON Power saving: ON TPSG: OFF Reference signal: internal oscillation mode Test mode: Normal mode
MSB LSB 1 (Note 4) 0 0 1 0 (Note 4) (Note 4) 1 1 0 (Note 4) 0 0 1 1 0 1 0 0 0 1 (Note 4) 1 1 1 1 (Note 4) 0 0 0 (Note 4) (Note 4) 0 0 ACK ACK ACK ACK ACK ACK
Address Byte Control Byte 1 Control Byte 2
ADR C1 C2
1 1 0 0 1
Prog.Data Byte 1 PD1 Prog.Data Byte 2 PD2
Note 4: Don't care
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TA1326FNG
External 4MHz Input Mode (Please refer to Section 7, Reference Signal Mode.)
Connecting a resistor (R1) between pin 4 and VCC allows input of an external reference signal in this mode.
5V 2 k R1
IC's internal circuitry
Reference signal
1000 pF
3.4 V (typ.) 4 2 k 2 k 0.1 mA
3.6 V (typ.) Reference signal
In this case, configure R1 and the external circuitry so as to ensure that a voltage of at least 3.8 V is applied to pin 4 and that the sine-wave reference signal has an amplitude of at least 100 mVp-p.
Maximum Ratings (Ta = 25C) CAUTION
The absolute maximum ratings of a semiconductor device are a set of specified parameter values, which must not be exceeded during operation, even for an instant. If any of these rating would be exceeded during operation, the device electrical characteristics may be irreparably altered and the reliability and lifetime of the device can no longer be guaranteed. Moreover, these operations with exceeded ratings may cause break down, damage and/or degradation to any other equipment. Applications using the device should be designed such that each maximum rating will never be exceeded in any operating conditions. Before using, creating and/or producing designs, refer to and comply with the precautions and conditions set forth in this documents.
Characteristics Supply voltage Power dissipation Input terminal voltage Operating temperature Storage temperature (Note 5) Symbol VCC PD VIN Topr Tstg Rating 6 810 GND - 0.3~VCC + 0.3 -20~75 -55~150 Unit V mW V C C
Note 5: Power dissipation in the IC alone. If the device is operated at Ta > 25C, this parameter must be derated by 6.5 mW per 1C.
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TA1326FNG
Electrical Characteristics (VCC = 5.0 V, Ta = 25C, fp = 591.25 MHz)
No. 1-1 Entire IC 1-2-1 1-2-2 1-3 2-1 2-2 2-3 2-4 Characteristics Supply voltage Supply current 1 (analog VCC + digital VCC) Supply current 2 (analog VCC + digital VCC) Operating frequency range Video RF output level Video modulation depth White clipping level Differential gain Symbol Vcc ICC1 ICC2 fop Vo (fp) mp mp (max) DG Min 4.5 35 4 471.25 78 76 90 Typ. 5.0 52 7 81 80 94 2 Max 5.5 60 10 855.25 84 84 98 5 Unit V mA mA MHz dBV % % % 5-V power supply 5-V power supply in Power Save Mode fp frequency 50- termination, staircase (B/W) signal, 0.5-Vp-p input White signal: 0.5 Vp-p input White signal: 1.0 Vp-p input 10-step staircase signal: 0.5-Vp-p input (chroma signal = 20 IRE), 9th step 10-step staircase signal: 0.5-Vp-p input (chroma signal = 20 IRE), 9th step 0.1 MHz~5 MHz, unweighted, 50% WHITE signal input 0.1 MHz~5 MHz, referenced to 1 MHz 10%~90% APL, referenced to 50%, variation in video modulation depth {1 - (Vsync/Vwhite) x (100/40)} 4.43-MHz sine wave: 0.5-Vp-p input, referenced to video carrier level, P/S ratio = -13dB Referenced to video carrier level Referenced to video carrier level 1-MHz sine wave: 0.5-Vp-p input Referenced to fp + 1 MHz fp + 2 MHz fp x 1/2 fp x 3/2 Series capacitance of crystal: 6 pF Note
2-5
Differential phase
DP
2
5 3 3.0 5 -70 -25 -15 -46 0 15 100
2-6 2-7
Video S/N ratio Video frequency response
mp (S/N) fp mp (APL) sync Vc V2fp V3fp VpH VPR1/2 VPR3/2 fp
50
52 2 0.5 2 -75 -30 -20 -51 -10 10
dB dB
Video Block
2-8 2-9 2-10
Average picture level drift Sync crush level Chroma beat Spurious RF second-order harmonic Spurious RF third-order harmonic Spurious video signal harmonic
% % dB
2-11-1 2-11-2
dB dB
2-12
dB dBV dBV kHz
2-13-1 Prescaler spurious(x1/2) 2-13-2 Prescaller spurious (x3/2) 2-14 Video carrier frequency accuracy
10
TA1326FNG
No. 3-1 3-2 3-3-1 TPSG Block 3-4 3-5-1 3-5-2 3-3-2 Characteristics TPSG modulation depth TPSG V/S ratio TPSG horizontal sync signal cycle TPSG horizontal sync signal width TPSG white signal width TPSG SYNC-1st signal time TPSG SYNC-2nd signal time P/S ratio Symbol mp (TPSG) V/S Tsync Wsync Wwhite W1 W2 Min 75 2.0 62 3.6 3.6 22 38 -15 Typ. 80 2.4 64 4.0 4.0 24 40 -13 Max 85 2.8 66 4.4 4.4 26 42 -11 Unit % % s s s s s TPSG Mode TPSG Mode TPSG Mode TPSG Mode TPSG Mode TPSG Mode TPSG Mode P/S ratio: -13dB set-up, staircase (B/W) signal: 0.5-Vp-p input P/S ratio: -17dB set-up, staircase (B/W) signal: 0.5-Vp-p input P/S ratio: -10dB set-up, staircase (B/W) signal: 0.5-Vp-p input 1-kHz sine wave: 350 mVp-p input FM = f (kHz)/ 350 (mV) 1-kHz sine wave: 350 mVp-p input FM = f (kHz)/ 350 (mV) 1-kHz sine wave input, 50 kHz Dev. = 0dB Inter Carrier demod., De-Emph = IN 1-kHz sine wave input, 25 kHz Dev. = 0dB Inter Carrier demod., De-Emph = IN 1-kHz sine wave: 50 (25) kHz Dev. 100 Hz~15 kHz, 1-kHz reference P/S ratio = -13dB set-up, video carrier level reference P/S ratio = -13dB set-up, video carrier level reference X'tal series capacitance: 6 pF Note
4-1
RP/S
dB
4-2-1
Minimum variable range of P/S ratio Maximum variable range of P/S ratio Sound modulation sensitivity (5.5 MHz/6.0 MHz/6.5 MHz) Sound modulation sensitivity (4.5 MHz) Sound S/N ratio (5.5 MHz/6.0 MHz/6.5 MHz)
RP/ Smin
-19
-17
-15
dB
4-2-2
RP/ Smax
-12
-10
-8
dB
4-3-1
FM1
0.257
0.285
0.313
KHz/ mV KHz/ mV
4-3-2 Sound Block
FM2
0.129
0.143
0.156
4-4-1
S/N (FM1)
55
59
dB
4-4-2
Sound S/N ratio (4.5 MHz)
S/N (FM2)
51
56
dB
4-5 4-6 4-7-1 4-7-2 4-8
Sound distortion Sound frequency responce Sound 2nd harmonic level Sound 3rd harmonic level Sound carrier frequency accuracy
THD fs VSH1 VSH2 fs
0.25 1 -70 -70
0.5 2 -65 -65 750
% dB dB dB Hz
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TA1326FNG
No. 5-1 5-2 5-3 5-4 5-5 5-6 5-7 5-8 5-9 Logic Block 5-10 5-11 5-12 5-13 5-14 5-15 5-16 Characteristics SCL clock frequency Bus-free time between stop and start conditions Hold time (repeated) start condition Low period for the SCL clock High period for the SCL clock Set-up time for a repeated start condition Data hold time Data set-up time Rise time for both SDA and SCL signals Fall time for both SDA and SCL signals Set-up time for stop condition Capacitive load for each bus line Input voltage Low level for both SDA and SCL lines Input voltage High level for both SDA and SCL lines Maximum Low level output voltage on SDA line Threshold voltage for power-on reset Threshold voltage for External Reference Signal Input Mode Threshold voltage for test mode Negative resistance of X'tal oscillator Input signal level of external reference signal Symbol fSCL tBUF tHD; STA tLOW tHIGH tSU; STA tHD; DAT tSU; DAT tR tF tSU; STO Cb VL VH VACK VRESET VEXT VTEST RXO VEXREF Min 0 1.3 0.6 1.3 0.6 0.6 0 100 20 20 0.6 0 2.0 0 2.6 Typ. 3.4 Max 400 0.9 300 300 400 1.5 VCC 0.4 4.0 Unit kHz s s s s s s ns ns ns s pF V V V V I sync = 3 mA After this period, the first clock pulse is generated. Note
5-17
3.4
3.6
3.8
V
Pin 4 DC voltage
5-18 6-1 6-2
3.1 -1 100
3.8
4.5
V k
Pin 2 DC voltage
mVp-p External Reference Input Mode
12
TA1326FNG
Input Waveforms
White signal Staircase (B/W) signal APL50%
VWHITE 100 IRE
V SYNC 40 IRE
64 s
64 s
Staircase (sub-carrier 20 IRE) signal APL 50%
20 IRE
64 s
Data transfer on I C-Bus
2
SDA
SCL S
1-7 Address
8
9
1-7 Data
40 IRE
90 IRE
8
9 ACK
1-7 Data
8
9
P
Start condition
R/W
ACK
ACK
Stop condition
Timing requirements for I C-Bus
2
SDA tBUF tLOW tR tF tHD; STA
tSP
SCL P S tHD; STA tHD; DAT tHIGH tSU; DAT tSU; STA Sr tSU; STO P
Timing charts may be simplified for explanatory purpose.
13
40 IRE
100 IRE
TA1326FNG
Test and Application Circuit
33 V
1000 pF
4.7 k
100 k 100 k 0.01 F
560 k
120 k 0.01 F 2200 pF 2SC4738BL
5V 5V 5V
0.022 F 15 k 0.47 F
L1 1SV262
1 F 3.3 k 68 pF 68 pF
1SV262
3.3 k
0.1F 16 D.VCC Phase Comp.
4 pF
15
14
13 A.GND
12
11
10 A.GND
0.047 F
9
Charge Pump
RF Carrier OSC
Charge Pump
20.8 kHz
Sound Counter
Sound VCO RF Mod.
1/4
Phase Comp.
TPSG
Programmable Divider
62.5 kHz
White Clip
Video Mod.
Mixer
Clamp
X'tal OSC
I C Bus
2
A.VCC 1
1 F 0.1 F
D.GND 4 5 6 7 8
100 pF
2
3
5V
4-MHz X'tal
Pre Emph. Sound signal input
1000 pF
39 pF
6 pF
SCL
SDA RF signal output
Video signal input
(External reference signal input)
L1: Coil diameter = 3.2 mm, wire diameter = 0.4 mm, 2.5 turns
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TA1326FNG
Handling Precautions
1. Using a human charge model (C = 100 pF, R = 1.5 k, test repeated three times), the product's electrostatic resistance was determined to be low in the following cases: (1) When a positive voltage is applied across pin 2 and any GND pin (2) When a positive voltage is applied across pin 7 and any VCC pin and a GND pin Accordingly, please handle the product with care. Do not drive the device's power supply voltage High or Low until it is attached to an inspection board or similar test assembly. Attaching the device to, or removing it from the inspection board while it is powered on may damage the device or degrade its characteristics. The power supply voltage should not be applied suddenly. Any overshoot or chattering in the power supply may result in degradation of the IC's characteristics. A filter or similar protective component should be inserted on the power supply line. The sample peripheral circuits described in this document are merely intended as examples to enable the operation of the device to be evaluated. None of the peripheral circuit configurations shown or circuit constants specified are intended to be incorporated into application systems or used in designs for mass-produced equipment. Toshiba Corporation cannot assume responsibility for any damage arising from the use of any of these circuits. This is because the high-frequency characteristics of a device can vary according to a number of factors, including factors relating to the external components and the mounting pattern used. Therefore, the user must design external circuits according to the requirements of the specific application system, using this document as a reference only. The user must also test the application circuit's characteristics thoroughly. This document only guarantees device quality and characteristics as described herein; Toshiba Corporation cannot assume responsibility for any user's product design or application implementation. Before attempting to use this product, the user should refer to the latest edition of the Toshiba Semiconductor Reliability Handbook, Integrated Circuits in order to gain a better understanding of the general principles governing the quality and reliability of Toshiba products and to learn how Toshiba seeks to enhance the management and control of product quality and reliability. The Toshiba Semiconductor Reliability Handbook, Integrated Circuits is also available on the semiconductor products information page of the Toshiba Electronic Components and Materials website at the following URL: < http://www.semicon.toshiba.co.jp/eng/prd/common/index.html>.
2.
3.
4.
(Last updated: Jul. 2003)
15
TA1326FNG
Package Dimensions
Weight: 0.07 g (typ.)
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TA1326FNG
RESTRICTIONS ON PRODUCT USE
000707EBA
* TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc.. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. * The products described in this document are subject to the foreign exchange and foreign trade laws. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. * The information contained herein is subject to change without notice.
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