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PDF LA72912V Data sheet ( Hoja de datos )
| Número de pieza | LA72912V | |
| Descripción | FM Modulator and Demodulator IC | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Ordering number : ENA1409
LA72912V
Monolithic Linear IC
FM Modulator and
Demodulator IC
http://onsemi.com
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
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
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
Semiconductor Components Industries, LLC, 2013
July, 2013
21809 MS 20090128-S00005 No.A1409-1/12
1 page  
Package Dimensions
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
Continued from preceding page.
Pin No.
23
Pin Name
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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