TDA7434

TDA7434 BASIC FUNCTION AUDIO PROCESSOR TWO STEREO AND ONE MONO INPUTS MUTE FUNCTION (SOFTWARE AND HARDWARE) CONTROLLED VOLUME CONTROL IN 1dB STEP BASS AND TREBLE CONTROL FOUR SPEAKER ATTENUATORS: – Independentattenuation control – Independentmute function ALL FUNCTIONS PROGRAMMABLE VIA I2CBUS FULLY PROGRAMMABLE LOUDNESS CONTROL DESCRIPTION The TDA7434 is a volume, tone (bass and treble) balance (Left / Right) fader (Front / Rear) processor for quality audio applications in car radio and Hi-Fi systems. Control is accomplished by serial bus microprocessor interface. BLOCK DIAGRAM 4.7K 100nF LOUD_L 7 6 2 MUX VOL BASS TREBLE BIN_L 12 100nF BOUT_L 11 SDIP24 ORDERING NUMBER: TDA7434 The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers. Thanks to the advanced BIPOLAR/CMOS Technology, the external components have been reduced. 2.7nF TRL 13 SPKR ATT SPKR ATT 19 LEFT FRONT IN1_L IN2_L 17 LEFT REAR MONO/MUTE 4 21 S BUS DECODER + LATCHES 22 SCL SDA IN2_R IN1_R VS 1 5 20 MUX VOL BASS TREBLE SPKR ATT SPKR ATT 18 RIGHT FRONT 16 SUPPLY 24 GND CREF 8 LOUD_R 100nF 10 BIN_R 9 BOUT_R 100nF 4.7K 14 TRR 2.7nF RIGHT REAR 23 D95AU360A August 1996 1/10 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. TDA7434 ABSOLUTE MAXIMUM RATINGS Symbol VS Tamb Tstg Operating Supply Voltage Operating Temperature Range Storage Temperature Range Par...