ADAU1701JSTZ Datasheet

SigmaDSP® 28/56-Bit Audio Processor with 2ADC/4DAC


The ADAU1701 is a complete audio system-on-a-chip including a 28/56-bit audio DSP, ADCs and DACs, and microcontroller-like control interfaces. Signal processing includes equalization, crossover, bass enhancement, multiband dynamics processing, delay compensation, speaker
compensation, and stereo image widening. These algorithms can be used to compensate for the real-world limitations of speakers, amplifiers, and listening environments, resulting in a dramatic improvement of perceived audio quality.

28/56-bit, 50 MHz digital audio processor
Stereo ADC: 100 dB SNR and -80 dB THD+N
4-channel DAC: 104 dB SNR and -90 dB THD+N
Complete stand-alone operation
  •  Self-boot from serial EEPROM
  •  Auxiliary ADC with four-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 × fSclocks
Flexible serial data I/O 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 LQFP plastic package



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