HomedatasheetADAU176

ADAU176 Datasheet

Audio IC Development Tools
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Description

The ADAU176 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 ADAU176. 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. TheADAU176 includes a stereo digital microphone input. The ADAU176 includes five high power output drivers (two differential and three single-ended), supporting stereo headphones, 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. ADAU176 Features •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 ADAU176 Applications •Smartphones/multimedia phones •Digital still cameras/digital video cameras •Portable media players/portable audio players •Phone accessories products
Features

Parameters

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Manufacturer information

TEXAS INSTRUMENTS TEXAS INSTRUMENTS
Warm Hint

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