GENERAL DESCRIPTION
The ADAU1702 is a complete single-chip audio system with a 28-/56-bit audio DSP, ADCs, DACs, and microcontroller-like control interfaces. Signal processing includes equalization, cross over, bass enhancement, multiband dynamics processing, delay compensation, speaker compensation, and stereo image widening and can be used to compensate for real-world limitations of speakers, amplifiers, and listening environments, providing a dramatic improvements of perceived audio quality.

FEATURES
28-/56-bit, 25 MIPS digital audio processor
Two ADCs: SNR of 100 dB, THD + N of −83 dB
Four DACs: SNR of 104 dB, THD + N of −90 dB
Complete standalone operation
  Self-boot from serial EEPROM
  Auxiliary ADC with 4-input mux for analog control
  GPIOs for digital controls and outputs
Fully programmable with SigmaStudio™ graphical tool
28-bit × 28-bit multiplier with 56-bit accumulator for full double-precision processing
Clock oscillator for generating master clock from crystal
PLL for generating master clock from 64 × fS, 256 × fS, 384 × fS, or 512 × fS clocks
Flexible serial data input/output ports with I2S-compatible, left-justified, right-justified, and TDM modes
Sampling rates up to 192 kHz supported
On-chip voltage regulator for compatibility with 3.3 V systems
48-lead, plastic LQFP

APPLICATIONS
Multimedia speaker systems
MP3 player speaker docks
Automotive head units
Minicomponent stereos
Digital televisions
Studio monitors
Speaker crossovers
Musical instrument effects processors
In-seat sound systems (aircraft/motor coaches)