TDA7400D

® TDA7400D ADVANCED CAR SIGNAL PROCESSOR FULLY INTEGRATED SIGNAL PROCESSOR OPTIMIZED FOR CAR RADIO APPLICATIONS FULLY PROGRAMMABLE BY I2C BUS INCLUDES AUDIOPROCESSOR, STEREO DECODER WITH NOISE BLANKER AND MULTIPATH DETECTOR PROGRAMMABLE ROLL-OFF COMPENSATION NO EXTERNAL COMPONENTS DESCRIPTION The TDA7400D is the newcomer of the CSP family introduced by TDA7460/61. It uses the same innovative concepts and design technologies allowing fully software programmability through I2C bus and overall cost optimisation for the system designer. The device includes an audioprocessor with configurable inputs and absence of external components for filter settings, a last generation BLOCK DIAGRAM SO28 ORDERING NUMBER: TDA7400D CDL CDGND CDR 7 6 5 AM b O CassR so 10 4 3 8 9 11 let P e d o r t c u 18 ) (s s b O stereodecoder with multipath detector and a sophisticated stereoblend and noise cancellation circuitry. Strength points of the CSP approach are flexibility and overall cost/room saving in the application, combined with high performances. t e l o r P e u d o ) s ( ct SMUTE ACOUTL 28 ACOUTR 27 MONO-FADER MONO-FADER 24 26 23 25 OUT LR OUT LF OUT RR OUT RF VOLUME SOFT MUTE TREBLE BASS MONO-FADER MONO-FADER CassL Ph- INPUT MULTIPLEXER + AUTO ZERO MUXR MUXL FM_R FM_L DEMODULATOR + STEREO ADJUST + STEREO BLEND 19 DIGITAL CONTROL I2C BUS 20 16 15 SCL SDA MUX R MUX L Ph+ MPX 80KHz LP PILOT CANCELLATION 25KHz LP S&H HIGH CUT QUAL. 22 1 SUPPLY PLL PIL DET MU...