Parts Audio & Sound Audio Codecs & ADCs ADAU SigmaDSP Family ADAU1761 ADAU1761

ADAU1761

Name: ADAU1761
Brand: Analog Devices

Analog Devices

If you need integrated ADC/DAC functionality in addition to processing, consider this audio codec family part.

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Overview

The ADAU1761 is a stereo audio codec from Analog Devices with integrated ADCs and DACs. It provides two ADC channels and two DAC channels with 24-bit sigma-delta conversion and a serial digital audio interface. The device is available in compact surface-mount packages (32-VFQFN exposed pad / CSP) and supports industrial temperature ranges.

Why Choose This Part

Integrated stereo ADCs and DACs reduce external component count and PCB routing compared with discrete converters. 24-bit sigma-delta converters provide high resolution for consumer and voice audio applications. A wide analog and digital supply range makes the part adaptable to common battery and 3.3 V system rails, and the compact VFQFN/CSP packages save board space.

Applications

Embedded audio capture and playback

Stereo microphone or line input and stereo output for portable players, handheld recorders, and consumer audio devices.

Voice processing and conferencing

Front-end ADC/DAC for voice capture, preprocessing, and playback in teleconferencing and VoIP endpoints.

Multimedia in embedded systems

Audio I/O for set-top boxes, smart speakers, and infotainment systems requiring 24-bit conversion.

Prototyping and evaluation

Use in evaluation platforms and reference designs where an integrated codec reduces component count and board area.

Key Specifications

Type Audio

Sigma Delta Yes

Mounting Type Surface Mount

Data Interface Serial

Package / Case 32-VFQFN Exposed Pad, CSP

Resolution (Bits) 24 b

Number of ADCs / DACs 2 / 2

Operating Temperature -40degC ~ 85degC

Supplier Device Package 32-LFCSP-VQ (5x5)

Voltage - Supply, Analog 1.8V ~ 3.65V

Voltage - Supply, Digital 1.63V ~ 3.65V

Getting Started

Download the ADAU1761 datasheet and reference schematics from Analog Devices to review recommended power sequencing, decoupling, and input/output coupling. Use a host MCU, DSP, or FPGA with a serial audio interface to feed and receive I/O samples, and follow the datasheet guidelines for analog grounding and layout. Check Analog Devices application notes for recommended microphone and line-level front-end circuits.