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PDF LA72910V Data sheet ( Hoja de datos )
| Número de pieza | LA72910V | |
| Descripción | Monolithic Linear IC FM Modulator and Demodulator IC | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : ENA0783
www.DataSheet4U.com
LA72910V
Monolithic Linear IC
FM Modulator and
Demodulator IC
Overview
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 = 25°C
Parameter
Symbol
Maximum supply voltage
Allowable power dissipation
VCC max
Pd max
Operating temperature
Topr
Ta ≤ 70°C *
Storage temperature
Tstg
When mounted on a 114.3mm × 76.1mm × 1.6mm, glass epoxy.
Conditions
Ratings
7.0
300
-30 to +70
-40 to +150
Unit
V
mW
°C
°C
Recommended Operating Conditions at Ta = 25°C
Parameter
Recommended supply voltage
Allowable operating voltage range
Symbol
VCC
VCC op
Conditions
Ta = -30 to +70°C
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
1 page  
LA72910V
www.DaBtaSlohecekt4UD.cioamgram and Application Circuit Exanple1 Modulation (Camera)
Video-IN
(1Vp-p)
MOD : DFF_SW
2V : DFF_ON
0V : DFF_OFF
A-GND
Main
Emphasis
Monitor
B-GND
2nd-Call
(Push switch)
Standby SW
(Low : FM-OFF)
(High : FM-ON)
16 15 14 13 12 11 10
9
Clamp
-6dB
Main De-enphasis
FM-DEMOD/LPF
FM-AGC-DET
D-LIM
DO-DET
(DO-LOW)
Standby
Control
(Low : FM-OFF)
Main Emphasis
LPF/FM-AGC
12dB-AMP
Video-Mute
1
FM-MOD LPF
FM-stop
A-VCC
2
3
REG
4
FM-Stop control
DFF-SW
MOD/DEMOD
Control
TC1
567
TC2
8
VCC(5V)
FM-OUT
VD-IN MOD mode
(Negative pulse) (MOD : Hogh)
Pin 10 : Open collector output
Pin 3 : Push-pull output
Application Circuit Exanple2 Demodulation (Monitor)
1µF
A-GND
FM-AGC Off
(Off : 4.5V)
B-GND
DO-OUT
Standby SW
(Low : FM-OFF)
(High : FM-ON)
16 15 14 13 12 11 10
9
Clamp
-6dB
Main De-enphasis
FM-AGC-DET
FM-DEMOD/LPF
D-LIM
DO-DET
(DO-LOW)
Standby
Control
(Low : FM-OFF)
Main Emphasis
LPF/FM-AGC
12dB-AMP
Video-Mute
1
FM-MOD LPF
FM-stop
A-VCC
2
3
REG
4
VCC(5V)
Video-OUT
(2Vp-p)
FM-Stop control
DFF-SW
MOD/DEMOD
Control
TC1
567
TC2
8
FM-IN DEMOD mode
(DEMOD : Low)
Pin 10 : Open collector output
Pin 3 : Push-pull output
No.A0783-5/10
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet LA72910V.PDF ] | |
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