TDA8192

TDA8192 MULTISTANDARD AM AND FM SOUND IF CIRCUIT FOR TV . . . . . . . A 2-STAGE GAIN CONTROLLED AMPLIFIER, PROVIDING COMPLETE IF GAIN ; (AM SECTION) A PEAK DETECTOR AND INTEGRATION WHICH PROVIDES AGC-VOLTAGE ; (AM SECTION) A 6-STAGE LIMITING AMPLIFIER FOLLOWED BY A SYNCHRONOUS DEMODULATOR AND DEEMPHASIS NETWORK ; (FM SECTION) AN AUDIO PREAMPLIFIER A CIRCUIT PROVIDING AM/FM SWITCHING AND MUTE FACILITIES AN EXTERNAL AUDIO INPUT CIRCUIT WITH SWITCHING FACILITIES TO DELIVER EITHER THE DEMODULATED IF, OR THE EXTERNAL AUDIO SIGNAL AT THE OUTPUT FULLY COMPATIBLE WITH THE SCART EUROPEAN NORM EN50 049 A DC CONTROLLED VOLUME CIRCUIT DIP20 (Plastic Package) ORDER CODE : TDA8192 DESCRIPTION The demodulated IF signal is always available at a low impedance output. PIN CONNECTIONS IF/AM INPUT AMPLIFIED AGC (BYPASS) 1st STAGE OUTPUT AM/FM SWITCH 2nd STAGE INPUT 2nd STAGE OUTPUT AGC BYPASS REFERENCE VOLTAGE (+6V) VOLUME CONTROL INPUT AUDIO OUTPUT (0 to 1 V RMS) 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 GND FM INPUT FM INPUT (BYPASS) 5.5MHz TUNED CIRCUIT DEEMPHASIS CAPACITOR MUTE SWITCH SCART AUDIO OUTPUT SCART SWITCH SCART AUDIO INPUT POWER SUPPLY (+12V) 8192-01.EPS October 1993 1/5 TDA8192 BLOCK DIAGRAM 1st STAGE OUTPUT 3 2nd STAGE INPUT 5 2nd STAGE OUTPUT 6 SCART AUDIO INPUT 12 IF/AM INPUT 1 AMPLIFIED 2 AGC (BYPASS) FIRST AM STAGE 2nd AM STAGE AM DEMOD VOLUME CONTROL 10 AUDIO OUTPUT VOLUME 9 CONTROL INPUT AGC BYPASS 7 AGC 13 SCART SWITCH POWER SUPPLY 11 F...