TDA4445A Datasheet, PDF (1/6 Pages) STMicroelectronics – SOUND IF AMPLIFIER

. QUADRATURE INTERCARRIER DEMODU-
LATOR
. _{VERY HIGH INPUT SENSITIVITY}
. _{GOOD SIGNAL TO NOISE RATIO}
. _{FAST AVERAGING AGC}
. _{IF AMPLIFIER CAN BE SWITCHED OFF FOR}
VTR MODE
. _{GOOD AM SUPPRESSION}
. _{OUTPUT SIGNAL STABILIZED AGAINST}
SUPPLY VOLTAGE VARIATIONS
. _{VERY FEW EXTERNAL COMPONENTS}
DESCRIPTION
TDA4445A :
Sound IF amplifier, with FM processing for quasi
parallel sound system.
TDA4445B :
Sound IF amplifier, with FM processing and AM
demodulator, for multi-standard sound TV appli-
ances.
TDA4445B additionnal :
Bistandard applications (B/G and L)
No adjustment of the AM demodulator
Low AM distortion
PIN CONNECTIONS
TDA4445A
TDA4445B
SOUND IF AMPLIFIER
DIP16
(Plastic Package)
ORDER CODE : TDA4445A - TDA4445B
IF INPUT
1
NOT TO BE CONNECTED
2
IF AGC TIME CONSTANT
3
NOT TO BE CONNECTED
4
NOT TO BE CONNE CTED FOR TDA4445A
AVE RAGING CAP ACITOR FOR TDA4445B
5
NOT TO BE CONNE CTED FOR TDA4445A
6
A.F. SOUND OUTPUT FOR TDA4445B
NOT TO BE CONNECTED
7
REFERENCE L.C. NETWORK
8
16
IF INPUT
15
NOT TO BE CONNECTED
14
NOT TO BE CONNECTED
13
GROUND
12
FM MODULATED SOUND OUTPUT
11
SUPPLY VOLTAGE
10
NOT TO BE CONNECTED
9
REFERENCE L.C. NETWORK
December 1992
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