DESCRIPTION

· The ADAU1461 is a low-power stereo audio codec with integrated digital audio processing, supporting 48 kHz stereo record and playback at 35 mW from a 3.3 V analog supply.

· It features 24-bit stereo audio ADCs and DACs with sample rates from 8 kHz to 96 kHz and includes a digital volume control.

· The SigmaDSP core offers 28-bit processing (56-bit double precision) for enhancing audio quality through equalization, compression, and other algorithms.

· Programmable via SigmaStudio graphical development tool, it includes audio processing blocks for custom signal flow development.

FEATURES

· SigmaDSP 28-/56-bit, 50 MIPS digital audio processor.

· Fully programmable with SigmaStudio graphical tool.

· 24-bit stereo audio ADC and DAC with >98 dB SNR.

· Sampling rates from 8 kHz to 96 kHz.

· Low power consumption: 17 mW record, 18 mW playback at 48 kHz.

· 6 analog input pins, configurable for single-ended or differential inputs.

· Flexible analog input/output mixers and stereo digital microphone input.

· PLL supporting input clocks from 8 MHz to 27 MHz.

· Analog automatic level control (ALC) and microphone bias reference voltage.

· 3.3 V I2C and SPI control interfaces.

· Digital audio serial data I/O in stereo and TDM modes.

· Software-controllable clickless mute and GPIO pins for digital controls.

· 32-lead, 5 mm × 5 mm LFCSP, operating from -40°C to +105°C.

· Qualified for automotive applications.

APPLICATIONS

· Automotive head units and amplifiers.

· Navigation systems.

· Rear-seat entertainment systems.