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TDA7340G Datasheet(PDF) 2 Page - STMicroelectronics |
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TDA7340G Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 27 page AUDIO PROCESSOR PART FEATURES: Input Multiplexer: DIFFERENTIAL CD STEREO INPUT CASSETTE STEREO INPUT FM STEREO INPUT FROM STEREODE- CODER AM INPUT: MONO OR STEREO MODE (PROGRAMMA- BLE) BEEP INPUT (ONLY IN AM MONO MODE) TELEPHONE DIFFERENTIAL MONO INPUT GAIN PROGRAMMABLE IN 3 x 3.75dB STEPS Loudness: FULLY PROGRAMMABLE 15 x 1.25dB STEPS Volume Control: 1.25dB COARSE ATTENUATOR 0.31dB FINE ATTENUATORS MAX GAIN 20dB MAX ATTENUATION 59.7dB (PLUS LOUD- NESS) Bass Control ±7 x 2dB STEPS 2nd ORDER SYMMETRICAL OR NON SYM- METRICAL CUT FREQUENCY RESPONSE Treble Control ±7 x 2dB STEPS Speaker Control 4 INDEPENDENT SPEAKER CONTROL IN 1.25dB STEPS CONTROL RANGE 37.5dB INDEPENDENT SPEAKER MUTE Mute Functions DIRECT MUTE ZERO CROSSING MUTE WITH PROGRAM- MABLE THRESHOLD SOFT MUTE WITH EXTERNAL DEFINED SLOPE SOFT MUTE VIA I 2C BUS OR EXTERNALLY CONTROLLED Pause Detector PROGRAMMABLE THRESHOLD DELAY TIME DEFINED BY AN EXTERNAL CAPACITOR STEREO DECODER PART FEATURES: INTERNALLY ADJUSTABLE ROLL-OFF COMPENSATION (I 2C BUS CONTROLLED) INTEGRATED PILOT CANCELLATION ON CHIP FILTER FOR PILOT DETECTOR AND PLL ADJUSTMENT FREE VOLTAGE CONTROL- LED OSCILLATOR AUTOMATIC PILOT DEPENDENT MONO/STEREO SWITCHING VERY HIGH INTERMODULATION AND IN- TERFERENCE SUPPRESSION I 2C BUS CONTROLLED (STD OFF, FORCED MONO, STEREO) HIGH CUT CONTROL STEREO BLEND NOISE BLANKER PART FEATURES: INTERNAL 2nd ORDER HIGH-PASS FILTER NOISE RECTIFIER OUTPUT FOR SIGNAL QUALITY DETECTION PROGRAMMABLE TRIGGER THRESHOLD TRIGGER THRESHOLD DEPENDENT ON HIGH FREQUENCY NOISE BLANKING TIME PROGRAMMABLE BY EX- TERNAL CAPACITOR VERY LOW OFFSET CURRENT DURING HOLD TIME DUE TO OPAMPS WITH MOS INPUTS LEVEL INPUT FOR ADDITIONAL SPIKE DE- TECTION ON FIELD STRENGTH WITH IN- TERNAL 1st ORDER + 20KHz HIGH PASS FILTER NOISE RECTIFIER OUTPUT FOR QUALITY DETECTION CIRCUITS FOR DEVIATION AND FIELD STRENGTH DEPENDENT TRIGGER AD- JUSTMENT TDA7340G 2/27 |
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