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PDF LA72912V Data sheet ( Hoja de datos )
| Número de pieza | LA72912V | |
| Descripción | FM Modulator and Demodulator IC | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : ENA1409
www.DataSheet4U.com
LA72912V
Monolithic Linear IC
FM Modulator and
Demodulator IC
Overview
The LA72912V 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
• ASK modulation and demodulation
• 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
Maximum supply voltage
Allowable power dissipation
Symbol
VCC max
Pd max
Operating temperature
Topr
Ta ≤ 70°C *
Storage temperature
Tstg
* Mounted on a 114.3mm × 76.1mm × 1.6mm, glass epoxy board.
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.
21809 MS 20090128-S00005 No.A1409-1/12
1 page  
www.DaPtaaShceketa4Ug.ecomDimensions
unit : mm (typ)
3175C
7.8
24 13
LA72912V
1
0.65
(0.33)
12
0.22
0.15
SANYO : SSOP24(275mil)
Pin Assignment
Emphasis filter 1
VCC5V 2
FM/Video Output 3
4V Regulator 4
FM/VD input 5
MOD/DEMOD Control 6
TC1(MOD)/FMAGC
monitor Out control
7
TC2(DEMOD)/FMAGC
monitor Output
8
ASK-VCC5V 9
ASK CAR IN 10
ASK DATA IN 11
ASK TX Output 12
Top view
24 Video input
23
De-emphasis output
/V-2V select
22 A-GND
21 De-emphasis filter
20 FM AGC filter
19 B-GND
18
DOC-OUT
/2nd-Call input
17 Stand-by control
16 ASK RX input
15
ASK AGC filter
/AGC OFF
14 ASK DET filter
13 ASK RX Output
No.A1409-5/12
5 Page 
LA72912V
www.DaCtaoSnthineueetd4Ufr.ocmompreceding page.
Pin No.
Pin Name
23 De-emphasis output
/V-2V select
Description
DEMOD mode: Video signal output after De-emphasis.
Output level is 0.5Vp-p.
Connect capacitor to clamp input (pin 16).
MOD mode: DFF control pin. DFF is ON at over 2V DC
voltage. (2 to 5V)
24 Video input
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.
Equivalent circuit
MOD : DC IN
23
DEMOD C1
200Ω
SIG
1mA
Video input
MOD : 1Vp-p
DEMOD : 0.5Vp-p
24
C1
Clamp
200Ω
500Ω
200µA
No.A1409-11/12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LA72912V.PDF ] | |
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