GENERAL DESCRIPTION
●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.
●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
● −40°C to +85°C operating temperature range
●APPLICATIONS
● Smartphones/multimedia phones
● Digital still cameras/digital video cameras
● Portable media players/portable audio players
● Phone accessories products
