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TDA4445 Datasheet

  • TDA4445

  • SOUND IF AMPLIFIER

  • 6頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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TDA4445A
TDA4445B
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
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
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IF INPUT
NOT TO BE CONNECTED
NOT TO BE CONNECTED
GROUND
FM MODULATED SOUND OUTPUT
SUPPLY VOLTAGE
NOT TO BE CONNECTED
REFERENCE L.C. NETWORK
4445-01.EPS
NOT TO BE CONNECTED
REFERENCE L.C. NETWORK
December 1992
1/6

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