ADAU1461

SigmaDSP Stereo, Low Power, 96 kHz, 24-Bit Audio Codec with Integrated PLL ADAU1461 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: 17 mW record, 18 mW playback, 48 kHz 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: 3.3 V I2C and SPI control interfaces Digital audio serial data I/O: stereo and time-division multiplexing (TDM) modes Software-controllable clickless mute GPIO pins for digital controls and outputs 32-lead, 5 mm × 5 mm LFCSP −40°C to +105°C operating temperature range Qualified for automotive applications GENERAL DESCRIPTION The ADAU1461 is a low power, stereo audio codec with integrated digital audio processing that supports stereo 48 kHz record and playback at 35 mW from a 3.3 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, am...