ADAV4622

Audio Processor for Advanced TV with Sound IF Demodulator and Stereo Decoder ADAV4622 FEATURES Sound IF (SIF) processor SIF demodulator and broadcast stereo decoder NICAM (BG, DK, I, L), A2 (BG, DK, M), BTSC (M, N), EIAJ (M) Automatic sound IF standard detection Fully programmable 28-bit audio processor for enhanced ATV sound—default TV audio flow loaded on reset Implements Analog Devices and third-party branded audio algorithms Adjustable digital delay line for audio/video Synchronization for up to 200 ms stereo delay High performance 24-bit ADC and DAC 94 dB DNR performance on DAC channels 95 dB DNR performance on ADC channels Dual headphone outputs with integrated amplifiers High performance pulse-width modulation (PWM) digital outputs Multichannel digital baseband I/O 4 stereo synchronous digital I2S input channels One 6-channel sample rate converter (SRC) and one stereo SRC supporting input sample rates from 5 kHz to 50 kHz One stereo synchronous digital I2S output S/PDIF output with S/PDIF input mux capability Fast I2C control Operates from 3.3 V (analog), 1.8 V (digital core), and 3.3 V (digital interface) Available in 80-lead LQFP APPLICATIONS General-purpose consumer audio postprocessing Home audio DVD recorders Home theater in a box (HTIB) systems and DVD receivers Audio processing subsystems for DTV-ready TVs Analog broadcast capability for iDTVs PRODUCT OVERVIEW The ADAV4622 is an enhanced audio processor targeting advanced TV applications with full support for ...