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 appliances. TDA4445B additionnal : Bistandard applications (B/G and L) No adjustment of the AM demodulator Low AM distortion PIN CONNECTIONS DIP16 (Plastic Package) ORDER CODE : .
NNECTED 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 TDA4445A - TDA4445B BLOCK DIAGRAMS TDA4445A TDA4445B GENERAL DESCRIPTION Quasi parallel sound operation : High phase accuracy of the carrier signal proc2/6 . . . . This circuit includes the following functions : Three symmetrical and gain controlled wide band amplifier stages, which are extremely stable by quasi DC coupling without feedback. Averaging AGC with discharge control circuit AGC voltage generator AM-Demo.
Pin 1–16 3 8–9 11 12 13 2, 4, 7, 10, 14, 15 Symbol Function IF input If AGC time constant Tuned circuit Supply voltage S.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | TDA4445A |
ST Microelectronics |
SOUND IF AMPLIFIER | |
2 | TDA4445A |
TEMIC Semiconductors |
Quasi Parallel Sound Processing with Quadrature Intercarrier Demodulator | |
3 | TDA4443 |
ST Microelectronics |
MULTISTANDARD VIDEO IF AMPLIFIER | |
4 | TDA440 |
GEC Plessey Semiconductors |
Video IF Amplifier / Demodulator | |
5 | TDA440 |
National Semiconductor |
Video IF Amplifier | |
6 | TDA440S |
ST Microelectronics |
TV Video IF System | |
7 | TDA4420 |
ST Microelectronics |
VISION IF SYSTEM WITH AFC | |
8 | TDA4426 |
ST Microelectronics |
VIDEO IF Amplifier with Demodulator and AFC | |
9 | TDA4427 |
ST Microelectronics |
VIDEO IF Amplifier with Demodulator and AFC | |
10 | TDA4431 |
SGS |
TV SIGNAL IDENTIFICATION CIRCUIT AND AFC INTERFACE | |
11 | TDA4433 |
ST Microelectronics |
TV SIGNAL IDENTIFICATION CIRCUIT AND AFC INTERFACE | |
12 | TDA4437 |
ETC |
small signal tv ckt |