View TA1372FNG_4134235.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

TA1372FNG
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA1372FNG
VHF Band RF Modulator IC for VCRs and Set top boxes
The TA1372FNG is a VHF band RF modulator IC that features PLL-based RF carrier and sound intercarrier oscillation. There is no external parts of RF Oscillator and Sound Oscillator. Therefore, PCB design and adjustment with much time are not required. The TA1372FNG is compatible with CH 3 & CH 4 (U.S.A. channel) of NTSC television system. SSOP16-P-225-0.65B Weight: 0.07 g (typ.)
Features
* * * * * * * * RF Oscillator is all built in IC and external tank circuit is not required. (U.S.A. channels CH 3 & CH 4) Sound Oscillator is all built in IC and external tank circuit is not required. Formats supported: System M The Picture to Sound ratio is set up by external resistance. Muted RF output on power-on and as required. Reference signal can use 4MHz and 3.579545MHz. These modes are selected by pin 1. In Carrier off mode, Supply current is saved by stopping Sound VCO. There is White Clip Through Mode in test mode. Package is improved to Lead-Free
1
2003-12-25
TA1372FNG
Block Diagram
RF signal output 15 Antnna SW driver output 14 Sound PLL loop filter 12
N.C. 16
Analog VCC 13 A.VCC
Digital VCC 11 D.VCC Sound VCO
P/S ratio set up 10
Digital GND 9 D.GND
Voltage Regulator
Mixer
RF Mod.
Charge Pump
Video Mod.
Sound Counter
Phase Comp. 20.8 kHz
1/4 White Clip RFCarrier OSC Reference Divider Programmable Divider X'tal OSC
Clamp
Charge Pump A.GND
Phase Comp.
62.5 kHz
1 Reference signal mode selection
2 Video signal input
3 RF PLL loop filter
4 Analog GND
5 Sound signal input
6 Carrier off mode selection
7 4 MHz X'tal or External Reference signal input
8 Channel selection
Some of the functional blocks, circuits, or constants in the block diagram may be omitted or simplified for explanatory purpose.
2
2003-12-25
TA1372FNG
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. DC Voltage AC Voltage (typ.) (typ.)
Name
Interface equivalent circuit
Note
D.VCC H: 5 V M: 2.5V L: 0 V D.GND 1 120 k
1
Reference signal Mode selection
10 k
Reference signal Mode can be selected this pin. High or Open: 4MHz external input mode Middle: 3.579545MHz external input mode Low: Internal Oscillation Mode with 4MHz X'tal
A.VCC 3.1 V
Sync tip clamp input. It is used by AC coupling. Video modulation depth is set by level of input signal on this pin. White clip level for IC is set internally for DC, but it will change by the high frequency-factor.
2
Video signal Input
2.4 V (sync tip)
500 mVp-p (80% modulation) 2
A.GND
D.VCC 1 k 1 k
RF oscillation frequency is compared with RF setting frequency(pin 8), and the error is outputted by Charge pump. LPF for high frequency rejection is connected to this terminal. And the voltage for RF VCO control is generated.
3
RF PLL loop filter
3
2 k
D.GND
The reference frequency is 62.5 kHz.
4
Analog GND
(0 V)
Analog GND Sound modulation depth is set by level of sound signal input on this pin. Sound pre-emphasis is applied before this pin.
A.VCC 10 k H: 5 V 5 Sound signal input 105 k M: 2.5V L: 0 V (normal mode) 167 mVp-p (100% FM modulation) 5 2 k
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 M: Test mode (White Clip through mode) L (open): Normal mode
A.GND
3
2003-12-25
TA1372FNG
Pin No. Name DC Voltage AC Voltage (typ.) (typ.) Interface equivalent circuit Note
D.VCC
This terminal is selection of Carrier off-mode and Antenna SW driver output. High : Carrier ON Antenna SW High Low or Open : Carrier OFF
6
110 k
Carrier off mode selection
H: 5 V L: 0 V
6
10 k
D.GND
Antenna SW Low
4.3 V (External input mode) 7 4 MHz X'tal 2.7 V (Internal oscillation mode)
D.VCC (Note1) 3.6 V 2 k 2 k 0.1 mA As reference signal, either 4-MHz crystal resonator can be connected to this pin for internal oscillation or external signal can be input. Reference signal Mode can be selected pin 1. 100 k
7
(Note2) D.GND
Note1: Internal oscillation mode OFF Note2: External input mode OFF
D.VCC 120 k This terminal is the selection of RF VCO oscillation frequency. Open or High : USA 3ch Low : USA 4ch D.GND
H: 5 V 8 Channel select L: 0 V
8
10 k
9
Digital GND
(0 V)
Digital GND
A.VCC 50 k
P/S ratio 10 set up
5V (Pin Open)
80 k
10
P / S ratio is set up by connecting resistance with this terminal between GND.
A.GND
11
Digital Vcc
(5 V)
Digital Vcc
4
2003-12-25
TA1372FNG
Pin No. Name DC Voltage AC Voltage (typ.) (typ.) Interface equivalent circuit Note Sound VCO oscillation frequency is compared with 4.5MHz, 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. D.GND The reference frequency is 20.8 kHz. Analog Vcc
D.VCC 1 k 1 k
Sound PLL 12 loop filter
12
2 k
13
Analog Vcc
(5 V)
.VCC This terminal is a driver output for an Antenna SW switching and controlled by the terminal 6. The maximum output current is 15mA.
14
Antenna SW driver output
H: 4.1 V L: 0 V
67 k
14
D.GND
A.VCC
15
RF signal output
3.2 V
93dBV 550
RF signal output pin. 15 Low-impedance emitter-follower output
A.GND
16
N.C.
5
2003-12-25
TA1372FNG
Explanation in each mode
1. Reference signal Mode selection (Pin 1)
As reference signal, either 4-MHz crystal resonator can be connected to this pin for internal oscillation or external signal can be input. Reference signal Mode can be selected pin 1. 4MHz and 3.579545MHz can be used for the frequency of an external input signal.
Voltage of pin 1 High or Open Middle Low Reference signal mode 4MHz External input 3.579545MHz External input Internal oscillation with 4MHz X'tal
2. Test mode selection (Pin 5)
Pin 5 is also used for switching test mode. Normally this pin is used at 0 V DC (used by AC coupling). White clip mode is prepared into test mode. ( e.g. when modulation characteristics for near-100% modulation are being checked.)
Voltage of pin 5 High Middle Low or Open Mode Test mode White Clip through mode (Test mode) Normal mode
If the voltage of a terminal 5 becomes more than 1.2V, it will change to the test mode. Be careful of the influence of a noise etc.
3. Carrier off mode selection (Pin 6)
Pin 6 is selection of Carrier off-mode and Antenna SW driver output. In Carrier off mode, Supply current is saved by stopping Sound VCO.
Voltage of pin 6 High Low or Open RF&sound oscillation ON OFF Antenna SW driver output (pin 14) High Low
When changing a carrier ON, RF output is muted the time of about 130 msec. Mute of RF output is for avoiding the influence of the noise by RF carrier frequency being unstable. At the time of Channel switching, RF output is muted similarly.
4. Channel selection (Pin 8)
Pin 8 is the selection of RF VCO oscillation frequency.
Voltage of pin 8 High or Open Low Channel USA 3ch (61.25MHz) USA 4ch (67.25MHz)
5. P/S ratio set up (Pin 16)
P / S ratio is set up by connecting resistance with pin 16 between GND. P / S ratio can be set as the range of -9dB to -17dB.
6
2003-12-25
TA1372FNG
Maximum Ratings (Ta = 25C)
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 1)
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 1: 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.
7
2003-12-25
TA1372FNG
Electrical Characteristics (VCC = 5.0 V, Ta = 25C, When there is no indication of
conditions fp = 61.25 MHz)
No. 1-1 1-2 Entire 1-3 IC 1-4 2-1-1 2-1-2 2-2 2-3 2-4 2-5 2-6 2-7 2-8 Video Block 2-9 2-10 Characteristics Supply voltage Operating frequency range Supply current 1 (Normal mode) Supply current 2 (Carrier off mode) Video RF output level Video RF output level (Difference of channel) Video modulation depth White clipping level Differential gain Differential phase Video S/N ratio Video frequency responce Average picture level drift Sync crush level Chroma beat Symbol Vcc fop Icc1 Icc2 Vo Vo mp mpMAX DG DP mpS/N fv mp(APL) sync Vc Min 4.5 61.25 38 2.5 90 -1.2 76 88 -5 -5 50 -2.4 -3 Typ. 5.0 45 3.5 93 0.2 80 92 0 0 51.5 -0.4 0 1 -75 Max 5.5 67.25 51 4.5 96 0.8 84 96 +5 +5 1.6 +3 3 -70 Unit V MHz mA mA dBV dB % % % dB dB % % dB fp frequency Normal moe,IANT SW=0mA Carrier off mode 50- termination, staircase (B/W) signal, 0.5-Vp-p input 50- termination, staircase (B/W) signal, 0.5-Vp-p input, Vo(3ch) - Vo(4ch) White signal:0.5Vp-p input White signal:1.0Vp-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~4.2 MHz, unweighted, 50% White signal input 0.1 MHz~4.2 MHz, referenced to 1 MHz 10%~90% APL, referenced to 50%, variation in video modulation depth {1 - (Vsync/Vwhite) x (100/40)} 3.58MHz sine wave: 0.5-Vp-p input, Referenced to video carrier level, P/S ratio = -16dB Referenced to video carrier level Referenced to video carrier level Referenced to video carrier level 1MHz sine wave: 0.5-Vp-p input, Referenced to fp+1MHz level, Level of fp+2MHz Reference frequency 4MHz, Internal oscillation mode, Series capacitance of crystal : 6pF Reference frequency 3.579545MHz, External signal input mode Note
2-11-1 2-11-2 2-11-3 2-12
Video RF 2nd harmonic Video RF 3rd harmonic Video RF 4th harmonic Video harmonic
V2fp V3fp V4fp Vph
-
-35 -33 -55 -53
-30 -28 -50 -50
dB dB dB dB
2-13-1
Video carrier frequency accuracy 1 Video carrier frequency accuracy 2
fp4
-50
0
50
kHz
2-13-2
fp358
-0.008
-
+34
kHz
8
2003-12-25
TA1372FNG
No. 3-1-1 Characteristics Picture to Sound ratio Symbol RP/S Min -18 Typ. -16 Max -14 Unit dB Note P/S ratio: -16dB set-up, Connecting a 16k ohm resistor between pin 10 and GND. staircase (B/W) signal: 0.5-Vp-p input P/S ratio: -16dB set-up, Connecting a 16k ohm resistor between pin 10 and GND. staircase (B/W) signal: 0.5-Vp-p input, RP/S (3ch) -RP/S (4ch) P/S ratio: maximum set-up, Pin 10 is open. staircase (B/W) signal: 0.5-Vp-p input P/S ratio: minimum set-up, Pin 10 is connected to GND. staircase (B/W) signal: 0.5-Vp-p input
3-1-2
Picture to Sound ratio (Difference of channel)
RP/S
-0.5
0
0.5
dB
3-2-1
Maximum P/S ratio
RP/S max
-11
-9
-
dB
3-2-2
Minimum P/S ratio
RP/S min
-
-18
-16
dB
3-3 3-4-1 Sound Block 3-4-2
Sound modulation sensitivity Sound S/N ratio 1
FM S/N(FM1)
0.27 51
0.3 52.5
0.33 -
kHz/mV 1-kHz sine wave: 167 mVp-p input FM = f (kHz)/ 167 (mV) dB 1-kHz sine wave input, 25 kHz Dev. = 0dB, Inter Carrier demod., De-Emph = IN 1-kHz sine wave input, 25 kHz Dev. = 0dB, Color bar signal: 0.5-Vp-p input, Inter Carrier demod., De-Emph = IN 1-kHz sine wave: 25kHz Dev. 100 Hz~100 kHz, 1-kHz reference 1-kHz sine wave input, THD<3% P/S ratio = -16dB set-up, Video carrier level reference P/S ratio = -16dB set-up, Video carrier level reference Reference frequency 4MHz, Internal oscillation mode, Series capacitance of crystal : 6 pF Reference frequency 3.579545MHz, External signal input mode Pin 8: Low:67.25MHz, Open,High:61.25MHz Pin 8 Pin 6 Low,Open : Carrier off , Antenna SW Out Low Pin 6 High : Carrier on , Antenna SW Out High Pin 1 Low : Internal oscillation mode with 4MHz X'tal Pin 1 Middle : 3.58MHz External signal input mode Pin 1 Open,High : 4MHz External signal input mode
Sound S/N ratio 2 (with video signal)
S/N(FM2)
50
51.5
-
dB
3-5 3-6 3-7 3-8-1 3-8-2 3-9-1
Sound distortion Sound frequency response Maximum FM deviation Sound RF 2nd harmonic Sound RF 3rd harmonic Sound carrier frequency accuracy 1 Sound carrier frequency accuracy 2 Input voltage Low level for channel selection Input voltage High level for channel selection Input voltage Low level for Carrier off mode selection Input voltage High level for Carrier off mode selection Input voltage Low level for reference signal mode selection Input voltage Middle level for reference signal mode selection Input voltage High level for reference signal mode selection Threshold voltage for power-on reset Input voltage Low level for Test mode selection Input voltage High level for Test mode selection
THD fs Dev VSH1 VSH2 fs4
-2 400 -750
0.3 0 450 -70 -75 0
0.5 2 -65 -70 750
% dB % dB dB Hz
3-9-2 Logic Block 4-1-1 4-1-2 4-2-1 4-2-2 4-3-1
fs358 ViL1 ViH1 ViL2 ViH2 ViL3
-0.6 0 2 0 2 0
-
1.7 Vcc 1.7 Vcc 1.2
Hz V V V V V
4-3-2
ViM3
1.8
2.5
3.2
V
4-3-3
ViH3
3.8
-
Vcc
V
4-4 4-5-1 4-5-2
VRESET VIl4 ViH4
2.5 0 1.8
2.8 -
3.1 1.2 Vcc
V V V Pin 5 Low : Normal mode Pin 5 High : Test mode
9
2003-12-25
TA1372FNG
No. 4-6 4-7 5-1 5-2 Characteristics Output voltage Low level of Antenna SW driver Output voltage High level of Antenna SW driver Negative resistance of X'tal oscillator Input signal level of external reference signal Symbol VOL VOH RXO Vosc Min 3.6 -1 50 Typ. 0 4 10 Max 0.1 4.3 Unit V V k mVp-p External reference signal input Mode 15mA load Note
10
2003-12-25
TA1372FNG
Input Waveforms
White signal Staircase (B/W) signal APL50%
VWHITE 100 IRE
V SYNC 40 IRE
63.5 s
63.5 s
Staircase (sub-carrier 20 IRE) signal APL 50%
20 IRE
63.5 s
Input Waveforms may be simplified for explanatory purpose.
40 IRE
90 IRE
11
2003-12-25
40 IRE
100 IRE
TA1372FNG
Test and Application Circuit
5V
RF signal output
Antnna SW driver output
0.47 F P/S ratio set up 15 k 0.47 F
1000 pF
0.022 F
1000 pF 16 15 14 13 A.VCC Voltage Regulator RF Mod. 12
0.1 F 11 D.VCC Sound VCO Charge Pump 10 9 D.GND
Mixer
Video Mod.
Sound Counter
16 k Phase Comp. 20.8 kHz 1/4 Reference Divider
White Clip
RF Carrier OSC
Programmable Divider X'tal OSC
Clamp
Charge Pump A.GND
Phase Comp.
62.5 kHz
1 0.1 F
2
3 0.22 F 15 k
4 1 F
5
6
7
8
0.1 F
120 k
1000 pF
6 pF 4 MHz X'tal Channel selection High,Open : 3CH Low : 4CH
Pre Emph.
Reference signal mode selection High,Open : Ext. 4MHz Mid. : Ext. 3.58MHz Low : Int. osc
Video signal input
Sound signal input
Carrier off mode selection High : Carrier on Low,Open : Carrier off
(External Reference signal input)
Components in the test circuits are only used to obtain and confirm the device characteristics. These components and circuits do not warrant to prevent the application equipment from malfunction or failure. The application circuits shown in this document are provided for reference purposes only. Especially, a thorough evaluation is required on the phase of mass production design. Toshiba dose not grant the use of any industrial property rights with these examples of application circuits.
12
2003-12-25
TA1372FNG
Handling Precautions
1. 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. If the voltage of a terminal 5(Sound signal input) becomes more than 1.2V, it will change to the test mode. Be careful of the influence of a noise etc. The application 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: Dec. 2003)
13
2003-12-25
TA1372FNG
Package Dimensions
Weight: 0.07 g (typ.)
14
2003-12-25
TA1372FNG
RESTRICTIONS ON PRODUCT USE
* * The information contained herein is subject to change without notice.
030619EBA
The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of TOSHIBA or others. 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. TOSHIBA products should not be embedded to the downstream products which are prohibited to be produced and sold, under any law and regulations.
*
*
* *
15
2003-12-25

▲Up To Search▲

Price & Availability of TA1372FNG

	To Download TA1372FNG Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .