Overview

Features and Benefits

  • 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

Product Details

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.

The SigmaStudio graphical development tool is used to program the ADAU1761. This software includes audio processing blocks such as filters, dynamics processors, mixers, and low level DSP functions for fast development of custom signal flows.

The record path includes an integrated microphone bias circuit and six inputs. The inputs can be mixed and muxed before the ADC, or they can be configured to bypass the ADC. The ADAU1761 includes a stereo digital microphone input.

The ADAU1761 includes five high power output drivers (two differential and three single-ended), supporting stereo head-phones, an earpiece, or other output transducer. AC-coupled or capless configurations are supported. Individual fine level controls are supported on all analog outputs. The output mixer stage allows for flexible routing of audio.

Applications

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

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (3)

Software & Systems Requirements

Software Development Tools

Tools & Simulations

IBIS Models

ADAU1361/ADAU1761 IBIS Models

Reference Designs (2)

Product Recommendations

ADAU1761 Companion Parts

Recommended Class D Audio Amplifiers

  • For a 2W output, filterless, class D stereo audio amplifier: SSM2306.
  • For a 2.8W output, filterless, class D mono audio amplifier: SSM2305.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

Discussions

ADAU1761 Discussions

RE: ADAU1761 - Labview
2 week(s) ago in SigmaDSP Processors and SigmaStudio Development Tool
RE: axi-i2s: swapping from PL330 to axi-dma
6 week(s) ago in Linux Software Drivers
RE: axi-i2s: swapping from PL330 to axi-dma
7 week(s) ago in Linux Software Drivers
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.