ADAU1761 Datasheet

SigmaDSP Stereo, Low Power, 96 kHz, 24-Bit Audio Codec with Integrated PLL


The ADAU1761 is a low power, stereo audio codec with integrated digital audio processing that supports stereo 48 kHz record and playback at 14 mW from a 1.8 V analog supply. The stereo audio ADCs and DACs support sample rates from 8 kHz to 96 kHz as well as a digital volume control.
The SigmaDSP® core features 28-bit processing (56-bit double precision). The processor allows system designers to compensate for the real-world limitations of microphones, speakers, amplifiers, and listening environments, resulting in a dramatic improvement in the perceived audio quality through equalization, multiband compression, limiting, and third-party branded algorithms.

  SigmaDSP 28-/56-bit, 50 MIPS digital audio processor
  Fully programmable with SigmaStudio graphical tool
  24-bit stereo audio ADC and DAC: >98 dB SNR
  Sampling rates from 8 kHz to 96 kHz
  Low power: 7 mW record, 7 mW playback, 48 kHz at 1.8 V
  6 analog input pins, configurable for single-ended or differential inputs
  Flexible analog input/output mixers
  Stereo digital microphone input
  Analog outputs: 2 differential stereo, 2 single-ended stereo, 1 mono headphone output driver
  PLL supporting input clocks from 8 MHz to 27 MHz
  Analog automatic level control (ALC)
  Microphone bias reference voltage
  Analog and digital I/O: 1.8 V to 3.65 V
  I2C and SPI control interfaces
  Digital audio serial data I/O: stereo and time-division multiplexing (TDM) modes
  Software-controllable clickless mute
  Software power-down
  GPIO pins for digital controls and outputs
  32-lead, 5 mm × 5 mm LFCSP
  −40°C to +85°C operating temperature range

  Smartphones/multimedia phones
  Digital still cameras/digital video cameras
  Portable media players/portable audio players
  Phone accessories products




Manufacturer information


Analog Devices, Inc. Introduction - Analog Devices, Inc. (NASDAQ: ADI) defines innovation and excellence in signal processing. ADI's analog, mixed-signal, and digital signal processing (DSP) integrated circuits (IC) play a fundamental role in converting, conditioning, and processing real-world phenomena such as light, sound, temperature, motion, and pressure into electrical signals to be used in a wide array of electronic equipment. ADI is synonymous with high performance among electronics manufacturers and we collaborate with our customers to define the very best in the quality of the user experience. That means the clearest image, crispest sound, and optimum interface, size and performance in thousands of entertainment, medical, communications, industrial and other applications.

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