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TDA4445 Datasheet(PDF) 1 Page - STMicroelectronics |
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TDA4445 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 6 page TDA4445A TDA4445B SOUND IF AMPLIFIER December 1992 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 IF INPUT NOT TO BE CONNECTED IF AGC TIME CONSTANT NOT TO BE CONNECTED REFERENCE L.C. NETWORK REFERENCE L.C. NETWORK NOT TO BE CONNECTED SUPPLY VOLTAGE FM MODULATED SOUND OUTPUT GROUND IF INPUT NOT TO BE CONNECTED NOT TO BE CONNECTED 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 OUTPU T FOR TDA4445B PIN CONNECTIONS DIP16 (Plastic Package) ORDER CODE : TDA4445A - TDA4445B . 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 1/6 |
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