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PDF TDA4445A Data sheet ( Hoja de datos )

Número de pieza TDA4445A
Descripción SOUND IF AMPLIFIER
Fabricantes ST Microelectronics 
Logotipo ST Microelectronics Logotipo



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No Preview Available ! TDA4445A Hoja de datos, Descripción, Manual

. 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
NOT TO BE CONNECTED
IF AGC TIME CONSTANT
NOT TO BE CONNECTED
NOT TO BE CONNE CTED FOR TDA4445A
AVE RAGING CAP ACITOR FOR TDA4445B
NOT TO BE CONNE CTED FOR TDA4445A
A.F. SOUND OUTPUT FOR TDA4445B
NOT TO BE CONNECTED
REFERENCE L.C. NETWORK
1
2
3
4
5
6
7
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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TDA4445A pdf
TYPICAL APPLICATION
Figure 2 : Bistandard Operation (FM stereo sound + AM sound)
TDA4445A - TDA4445B
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