DESCRIPTION
The audioprocessor Due to a highly linear signal processing, using CMOS-switching techniques instead of standard TQFP 32 ORDERING NUMBER: TDA7342 bipolar multipliers, very low distortion and very low noise are obtained. Several new features like softmute, and zero-crossing mute are implemented. November 1999 1/14 OUT(L) BIN(L) TREBLE(L) SPKR ATT 25 MUTE ZERO CROSS + MUTE LOUD+ VOL BASS SPKR ATT 23 MUTE 28 SOFT MUTE SERIAL BUS DECODER + LATCHES 27 26 SPKR ATT R3 24 M R2 R1 ZERO CROSS + MUTE LOUD+ VOL MUTE TREBLE BASS TREBLE L3 17 32 16 21 18 15 9 IN(L) LOUD(L) SM C1 L1 L2 M L1 13 BOUT(L) 2/14 C17 100nF C11 C13 47nF C19 2.7nF C18 100nF R2 4.7K OUT LEFT FRONT OUT LEFT REAR SCL SDA DIGGND BUS INPUT SELECTOR + GAIN OUT RIGHT FRONT SPKR ATT 22 MUTE 29 CREF 10µF C9 C10 OUT(R) IN(R) 3 2 4 LOUD(R) C12 47nF 14 CSM CSM 47nF 20 19 BOUT(R) C14 100nF R1 4.7K 1 BIN(R) C15 100nF TREBLE(R) D94AU104B TDA7342 BLOCK DIAGRAM LEFT INPUTS L2 12 C2 C6 L3 11 CD CD GND 10 C3 C7 R3 5 C8 MONO INPUT M...
STMicroelectronics
