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Ordering number : ENA0783
Monolithic Linear IC
LA72910V
Overview
FM Modulator and Demodulator IC
The LA72910V is a FM modulation and demodulation single-chip IC. Its adjustment free modulation/demodulation circuit significantly reduces the number of peripheral circuits required and can contribute to lower production costs.
Functions
* Video signal FM modulation and demodulation * Video signal emphasis and de-emphasis function * Drop-Out detecting function of Video FM signal * FM mute function at Second-Call
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Ta 70C * Conditions Ratings 7.0 300 -30 to +70 -40 to +150 Unit V mW C C
When mounted on a 114.3mm x 76.1mm x 1.6mm, glass epoxy.
Recommended Operating Conditions at Ta = 25C
Parameter Recommended supply voltage Allowable operating voltage range Symbol VCC VCC op Ta = -30 to +70C Conditions Ratings 5.0 4.7 to 5.5 Unit V V
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment.
41907 MS PC 20070419-S00005 No.A0783-1/10
LA72910V
Electrical Characteristics at Ta = 25C, VCC = 5V DC CHARACTERISTICS T6 = 0.4V, T9 = 2.0V, T10 = 0.4V
Parameter Control terminal (Pin6,9) Low level Control terminal (Pin6,9)High level Input5 Low level Input5 High level Input10 Low level Input10 High level Output10 terminal High level Output10 terminal Low level Input12 Low level Input12 High level 5pin AC input dynamic range 16pin AC input dynamic range OPL13 OPL18 IN12L IN12H ACIN5 ACIN16 T12 T12 T5A T16A T12 T12 T3 T3 T10 Symbol CNT6L CNT9L CNT6H CNT9H IN5L IN5H IN10L IN10H OPH10 In T6 T9 T6 T9 T5 T5 T10 T10 T10 OUT Conditions Low level of control terminal of ALL mode. T6 = 0.4V(DEMOD mode), T9 = 0.4V (Standby mode) High level of input terminal of ALL mode T6 = 2.0V (MOD mode), T9 = 2.0V (Normal mode) Low level of input terminal of MOD mode T6 = 2.0V, T9 = 2.0V, T10 = 0.4V High level of input terminal of MOD mode T6 = 2.0V, T9 = 2.0V, T10 = 0.4V Low level of input terminal of MOD mode T5 = 0.4V, T6 = 2.0V, T9 = 2.0V High level of input terminal of MOD mode T5 = 0.4V, T6 = 2.0V, T9 = 2.0V DEMOD mode: FM-Signal input T6 = 0.4V, T9 = 2.0V, Pull-UP:15K T10: DEMOD mode: FM No-signal Measure the sink level of output terminal. T6 = 0.4V, T9 = 2.0V, Pull-UP:15K Voltage of terminal at AGC ON T6 = 0.4V, T9 = 2.0V Voltage of terminal at AGC OFF T6 = 0.4V, T9 = 2.0V Input amplitude level of FM signal Freq: 11.5MHz to 13.5MHz Maximum input level of T16A at Video signal 1.5 Vp-p 1000 mVp-p 4.5 5.0 V 0 3 V 0 0.25 0.4 V 4.7 V 2.0 5.0 V 0 0.4 V 2.0 5.0 V 0 0.4 V 2.0 5.0 V Ratings min 0 typ max 0.4 Unit V
Video FM Modulation Block (MOD) T6=2.0V,T9=2.0V,T10=0.4V,T15=5V
Parameter Current dissipation FM modulator output level FM Mute output level Carrier frequency FM output Second harmonic distortion Deviation FM modulator linearity (11.5MHz to 13.5MHz) DEV LMOD T16A T16A T3 T3 Symbol ICCR VFM1 VFM2 FFM THD2 T3 T3 T3 T3 In OUT Conditions measure the currents into pins 2 (MOD mode) Measure the output level on T3 (No signal input) It is load impedance 200 between T3-GND. Measure the T3 output level with 2nd call Measure the output frequency on T3 with no signal input Measure the second harmonics distortion with the above condition With T16A 100% White 1Vp-p signal, Measure the deviation on T3 Let f2.85, f3.35 and f3.85 be the output frequency when 2.85V, 3.35V and 3.85V is applied to T16A LMOD= Emphasis gain Main linear emphasis characteristics(1) Main linear emphasis characteristics(2) White clipping level Dark clipping level FM stop beginning delay time (VD characteristic 1B) FM stop time (VD characteristic2A) Minimum VD pulse width VDT T5 T3 C7=0.01F, Minimum VD pulse width to which TC1B is normally output 63 sec TC2 T5 T3 C8=0.001F, Stop time of FM carrier of T3 30 40 50 sec LWC LDC TC1 T16A T12 T16A T12 T5 T3 GME2 T16A T12 GEMP GME1 T16A T12 T16A T12 f3.35 - (f3.85 + f2.85) / 2 f3.85 - f2.85 x 100 -7.5 -1.5 2.5 180 -60 240 -6.0 0.0 4.0 200 -50 300 -4.5 +1.5 5.5 220 -40 360 dB dB dB % % sec -2 0 +2 % 1.9 2.0 2.1 MHz -30 -20 dB 0 10.9 10 11.5 20 12.1 mVp-p MHz Ratings min 19.5 typ 23.0 1.8 max 26.5 2.2 Unit mA Vp-p
With VIN a 300mVp-p 10kHz sine wave, Measure the ratio of the levels on T16A and T12 With VIN a 300mVp-p 500kHz sine wave, Measure the ratio of the levels on T16A and T12 With VIN a 300mVp-p 2MHz sine wave, Measure the ratio of the levels on T16A and T12 With VIN a 1.5Vp-p 100% white video signal. Measure the white clipping level on T12 With VIN a 1.5Vp-p 100% white video signal. Measure the dark clipping level on T12. C7=0.01F, Time from fall of T5 signal to doing of FM carrier of T3 STOP
No.A0783-2/10
LA72910V
Video FM De-modulation Block (DEMOD) T6=0.4V,T9=2.0V
Parameter Current dissipation Video output level Symbol ICCP VOUT T5A T3 In OUT Conditions Measure the currents into pin 2 (DEMOD mode) Demodulation level, when the FM signal of 2.2MHz deviation. Load impedance = 1k T3-GND. Demodulation level, when the FM signal of 2.0MHz deviation. Load impedance = 1k T3-GND. In this case only, VCC make 4.5V to 5.5V. T5 = 11.5MHz, 300mVp-p. Measure T12 voltage (V12). Set T12 V12 (AGC-Fix). T5 input level when T5 amplitude is decrease gradually, and T10 becomes "Low" Shift time from T5=300mVp-p0mVp-p to T10"Low". T5=11.5MHz, 300mVpp, Measure T12 Voltage (V12). Set T12 V12 (AGC-Fix). T5 inputs the level when T5 amplitude is increase gradually, and T10 becomes "High" Confirmation of output of Video signal from T3. Measurement of DC level. T10 T12 T4 T5A T5A T5A T3 T3 T3 T3 T5A T15 Mute level measurement of T3 T5A = 11MHz, 100mVp-p, 200mVp-p and 400mVp-p. Each T15 voltage measurement T5A T15 T5A = 12.5MHz, 100mVp-p, 200mVp-p and 400mVp-p. Each T15 voltage measurement T5A T15 T5A = 14MHz, 100mVp-p, 200mVp-p and 400mVp-p Each T15 voltage measurement Calculate FM demodulation linearity LDEM1 = {[VDEM21 - (VDEM11 + VDEM31) / 2] / (VDEM31 - VDEM11)}x100 LDEM2 = {[VDEM22 - (VDEM12 + VDEM32) /2 ] / (VDEM32 - VDEM12)}x100 LDEM3 = {[VDEM23 - (VDEM13 + VDEM33) / 2] / (VDEM33 - VDEM13)}x100 FM demodulation Sensitivity1.2.3 SDEM1 SDEM2 SDEM3 Calculate FM recovery Sensitivity with consider pin3 output level conversion ratio. SDEM1 = (VDEM31-VDEM11)/2.5 SDEM2 = (VDEM32-VDEM12)/2.5 SDEM3 = (VDEM33-VDEM13)/2.5 Main linear de-emphasis amplitude Main linear de-emphasis Characteristics(1) Main linear de-emphasis Characteristics(2) GMED2 T5A T15 GMED1 T5A T15 GMED T5A T15 T5=200mVp-p FM signal (fm = 10kHz,Center Carrier = 12.5MHz, DEV = 1.0MHz) Signal level of T15 T5 = 200mVp-p FM signal (fm = 500kHz, Center Carrier = 12.5MHz, DEV = 1.5MHz). Signal level of T15 versus GMRD (Ratio of GMED). T5 = 200mVp-p FM signal (fm = 2MHz, Center Carrier = 9.25MHz, DEV = 1.5MHz). Signal level of T15 versus GMRD (Ratio of GMED) -8.0 -6.0 -4.0 dB 243 270 297 mVp-p 0.28 0.33 0.38 V/MHz -2 0 +2 % 1.1 1.6 2.1 V 0.7 1.2 1.7 V Shift time from T5 = 0mVp-p300mVp-p to T10"High" Measurement of T4 DC level. DEV = 2.0MHz. Input amplitude level of FM signal. (T5A: 11.5MHz to 13.5MHz) 0 0 0 0.3 0.2 1.5 2.5 sec 0.5 0.5 Ratings min 24.0 2.09 typ 28.0 2.2 max 32.0 2.31 Unit mA Vpp
Video output level B
VOUTB
T5A
T3
1.9
2.0
2.1
Vpp
FM stop detection level (DOC characteristic 1)
DOC1
T5A T12
T10 T12
40
60
mVp-p
(Drop Delay Down) FM return judgment level
DDD DOC2
T5A T12 T5A T12
T10 T12 T10 T12
1.5 60
2.5 90
sec mVp-p
Video DC level when returning (Drop Delay Rise) Return operation delay time 4V Regulator Range of input Dynamic range DG DP Output voltage at mute FM demodulation voltage (11.0M) FM demodulation voltage (12.5M) FM demodulation voltage (14.0M) FM demodulation linearity1.2.3
DOC2B DWR
T5A T12 T5A T12
T15
1.0
1.5
V
VREG ACIN5 DG DP MUV VDEM11 VDEM12 VDEM13 VDEM21 VDEM22 VDEM23 VDEM31 VDEM32 VDEM33 LDEM1 LDEM2 LDEM3
3.9
4.0 500 6 6 10 0.8
4.3 1000 10 10 20 1.3
V mVp-p % deg IRE V
-11.0
-9.0
-7.0
dB
No.A0783-3/10
LA72910V
Standby (Standby mode) T9=0.4V
Parameter Current dissipation at standby Standby release time(1) (FM stoprelease) Standby release time(2) (Video signal stop release) Symbol ICCS SASK1 SASK2 In T9 T6 T9 T6 T5A T9 T3 T3 OUT Conditions Measure the currents into pin 2. (Standby mode) T6 = 2.0VDC T9 = 0V2V (Standby release) Time until FM career is output to T3. T6 = 0.4V, T5 = DEV = 1.5MHz 100% white video signal of FM signal. T9 = 0V2V (Standby release), Time until white 100% signal is output to T3 Ratings min 5.0 0.0 2.0 typ 8.0 1.0 7.0 max 11.0 2.0 12.0 Unit mA usec usec
Package Dimensions
unit : mm (typ) 3178B
5.2 16 9
4.4
6.4
1 0.65 (0.33)
8 0.15 0.22
1.5max
SANYO : SSOP16(225mil)
Pin Assignment
0.1
(1.3)
Emphasis filter 1 VCC(5V) 2 Main_OUT 3 Regulator filter 4 VD_IN 5 /FM_IN Mode control 6 (mod/de-mod) Drop Delay 7 (TC1) Drop Width 8 (TC2) Top view
0.5
16 Video_IN 15 VD control/ De-emphasis out
14 A_GND De-emphasis filter Emphasis Monitor 12 /FM-AGC filter 13 11 B_GND 10 9 FM-DOC_OUT /2nd-Call_IN Stand-by control
No.A0783-4/10
LA72910V
Block Diagram and Application Circuit Exanple1 Modulation (Camera)
2nd-Call (Push switch) Video-IN (1Vp-p)
10F
MOD : DFF_SW 2V : DFF_ON 0V : DFF_OFF A-GND +
Main Emphasis Monitor B-GND
Standby SW
(Low : FM-OFF) (High : FM-ON)
16
15
14
13
12
11
10
9
Clamp -6dB
Main De-enphasis
FM-AGC-DET
DO-DET
(DO-LOW)
Standby Control
(Low : FM-OFF)
FM-DEMOD/LPF
D-LIM
Main Emphasis
LPF/FM-AGC
FM-MOD LPF 12dB-AMP Video-Mute FM-stop REG A-VCC 2 VCC(5V) DFF-SW MOD/DEMOD Control
FM-Stop control
TC1 3
0.1F
TC2 8
1000pF
1
180pF 470
4
0.01F
5
6
0.01F
7
FM-OUT
VD-IN
MOD mode Pin 10 : Open collector output Pin 3 : Push-pull output
(Negative pulse) (MOD : Hogh)
Application Circuit Exanple2 Demodulation (Monitor)
FM-AGC Off (Off : 4.5V) DO-OUT
15k
Standby SW
(Low : FM-OFF) (High : FM-ON)
100pF
1.8k
1F A-GND
1F
B-GND
+
16
15
14
13
12
11
10
9
Clamp -6dB
Main De-enphasis
FM-AGC-DET
DO-DET
(DO-LOW)
Standby Control
(Low : FM-OFF)
FM-DEMOD/LPF
D-LIM
Main Emphasis
LPF/FM-AGC
FM-MOD LPF 12dB-AMP Video-Mute FM-stop REG A-VCC 2 VCC(5V) DFF-SW MOD/DEMOD Control
FM-Stop control
TC1 3
0.1F
TC2 8
1
4
0.01F
5
6
7
Video-OUT (2Vp-p)
Pin 10 : Open collector output Pin 3 : Push-pull output
(DEMOD : Low)
FM-IN DEMOD mode
No.A0783-5/10
LA72910V
Pin Function
Pin No. 1 2 3 4 5 Pin name Emphasis filter VCC5V Main_OUT Regulator filter VD_IN/FM_IN FM MOD mode(Outside camera) Emphasis filter connection pin VCC for FM modulation. FM Output (Ro=200:1.8Vp-p) FM modulation block reference DC power supply. VD Input (Hi: over 2V, Low: under 0.4V) (VD DET: High) 6 7 8 9 Mode control Drop delay (TC1) Drop Width (TC2) Stand-by control FM blocks standby control. (FM block operate: over 2V , FM block standby: under 0.4V ) 10 11 12 FM-DOC-OUT /2nd-Call control B-GND Emphasis Monitor /FM-AGC filter 13 14 15 16 De-emphasis filter A-GND VD control /De-emphasis out Video_IN Non connect(Hi-Z) Circuit GND DFF control (ON: over 2V, OFF: under 0.4V) Video signal input (from outside CCD camera: 1Vp-p). Video signal input (from de-emphasis block: 0.5Vp-p). MOD mode: Maximum video input level is 1.5Vp-p. 2nd-Call input, 2nd-Call: Low (High: over 2V, Low: under 0.4V) Circuit GND Emphasis monitor output DOC output (When DO-DET, output is Low) FM AGC control filter (AGC-ON: 0 to 3V DC, AGC-OFF: 4.5V to 5V by external DC voltage.) De-emphasis filter connection pin. DE-emphasis output If you don't need, this pin is open. MOD mode: Don't connect capacitor. DEMOD mode: Open collector output. Connect TC2 setting C. Non connect(Hi-Z) Set over 2V DC voltage. Connect TC1 setting C. FM DEMOD mode(Inside Monitor) Non connect(Hi-Z) VCC for FM demodulation. Video Output (Ro=1k:2Vp-p) FM demodulation block reference DC power supply. FM Input (Recommend Level: 100 to 620mVp-p) Set under 0.4V DC voltage. Non connect(Hi-Z) DEMOD mode:Set 3.3V by internal bias. (34k/66k) Outside camera / Inside monitor setting. Push-pull output Note If you don't need, this pin is open.
No.A0783-6/10
LA72910V
Pin Description
Pin No. 1 Pin Name Emphasis filter Description Main Emphasis filter pin. Before FM Modulation, make emphasis characteristic at video signal. Emphasis time constant must be matching at de-emphasis time constant. (If you don't need the emphasis, this pin is open.)
620 2.7k
Equivalent circuit
1
R1
200 1k
C1
2 3
VCC5V Main_OUT
VCC pin. Supply voltage is 5V DC. Please connect de-coupling capacitor. Push-Pull output pin. MOD mode: FM carrier output. (1.8Vp-p: Rout=200) DEMOD mode: Video signal output. (2.0Vp-p: Rout=1k)
MOD
40
3
40
DEMOD
4
Regulator filter
Internal regulator filter pin. Please connect 0.1F (C1)
4
10k 23k 50k
200
C1
5
VD_IN/FM_IN
DEMOD mode: FM signal input. Internal DC bias is 3.3V. Please use capacitor (C1) coupling.
34k
directory. Please consider input impedance.
FM Sig
C1
200
5
1k
66k 80A
VD Sig
6
Mode control
MOD mode/ DEMOD mode setting pin. MOD mode: Please set over 2V DC voltage. (2 to 5V). (0 to 0.4V).
1k
30A
DEMOD mode: Please set under 0.4V DC voltage.
6
Continued on next page.
No.A0783-7/10
20A
MOD mode: VD signal input. Please input VD signal
LA72910V
Continued from preceding page.
Pin No. 7 (TC1)
60A 20A
Pin Name Drop delay
Description MOD mode: TC1 filter pin. Please connect C1.
Equivalent circuit
7
C1
200 1k
2k
1k
8
Drop Width (TC2)
MOD mode: TC2 filter pin. Please connect C1.
8
200
2k
60A
1k
30A
1k
300
C1
9
Stand-by control
Standby control pin. FM block standby: under 0.4V DC voltage. (0 to 0.4V)
30A
FM block operate: over 2V DC voltage. (2 to 5V)
1k
9
10
FM-DOC-OUT /2nd-Call control
DEMOD mode: Drop-out output pin. This pin is open collector output, so please connect pull up resistor. 0.4V (0 to 0.4V) DC. Normal: over 2V DC voltage. (2 to 5V)
30A
MOD mode: 2nd-CALL input. 2nd-CALL input: under
10
11 12
B-GND Emphasis Monitor /FM-AGC filter
Circuit GND. MOD mode: Emphasis monitor pin. DEMOD mode: FM AGC filter pin. If FM AGC no need (=AGC Off), Please set pin12 voltage over 4.5V DC voltage. (4.5 to 5V)
100k AGC-DET EMP MONI
12
C1
10k 500
10k 60A
Continued on next page.
No.A0783-8/10
30A
LA72910V
Continued from preceding page.
Pin No. 13 Pin Name De-emphasis filter Description DEMOD mode: De-emphasis filter pin. De-emphasis time constant must be matching at emphasis (If you don't need the emphasis, this pin is open.)
300A
Equivalent circuit
SIG
time constant.
13
4.7k 2.5k
R1 C1
14 15
A-GND VD control /De-emphasis out
Circuit GND. DEMOD mode: Video signal output after De-emphasis. Output level is 0.5Vp-p. MOD mode: DFF control pin. DFF is ON at over 2V DC voltage. (2 to 5V)
200
SIG
Connect capacitor to clamp input (pin 16).
MOD : DC IN
16
Video_IN
MOD mode: Video signal input pin (from camera). Input level is 1Vp-p. DEMOD mode: Video signal input pin (from de-emphasis). Input level is 0.5Vp-p.
Clamp
1mA
DEMOD
3
C1
Video input MOD : 1Vp-p DEMOD : 0.5Vp-p 16
C1
500
200A
No.A0783-9/10
200
15k
LA72910V
Test Circuit
Current measure point T1 180pF 470 T16 10F + A SW16 75 +B 1F T16A Video_IN
1 Emphasis filter
Power Supply VCC=5V T3A SW3 10F + T4 200 1k 0.1F A B SW5 T4 T6
Video_IN 16
T15
T3
2 VCC(5V) 3 Main_OUT Regulator 4 filter 5 6 VD_IN /FM_IN
VD control/ 15 De-emphasis out A_GND 14 De-emphasis 13 filter Emphasis Monitor /FM-AGC filter 12 B_GND 11 FM-DOC_OUT 10 /2nd-Call_IN Stand-by 9 control
T14
T13 1.8k T12 A SW12 +B 1F 15k Pull up 100pF
T5A
1F +
T11
T7 GND T8
Mode control (mod/de-mod)
T10
Drop Delay 7 (TC1) 8 Drop Width (TC2)
T9
0.01F
1000pF
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written consent of SANYO Semiconductor Co.,Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO Semiconductor Co.,Ltd. product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above.
This catalog provides information as of April, 2007. Specifications and information herein are subject to change without notice. PS No.A0783-10/10

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