Series Information for ADAU1781BCPZ - Analog Devices
Features
24-bit stereo audio ADC and DAC
400 mW speaker amplifier (into 8 u2126 load)
Programmable SigmaDSP audio processing core
Wind noise detection and filtering
Enhanced stereo capture (ESC)
Dynamics processing
Equalization and filtering
Volume control and mute
Sampling rates from 8 kHz to 96 kHz
Stereo pseudo differential microphone input
Optional stereo digital microphone input pulse-density
modulation (PDM)
Stereo line output
PLL supporting a range of input clock rates
Analog and digital I/O 1.8 V to 3.3 V
Software control via SigmaStudio graphical user interface
Software-controllable, clickless mute
Software register and hardware pin standby mode
32-lead, 5 mm u00d7 5 mm LFCSP
The ADAU1781 is a low power, 24-bit stereo audio codec. The low noise DAC and ADC support sample rates from 8 kHz to 96 kHz. Low current draw and power saving modes make the ADAU1781 ideal for battery-powered audio applications. A programmable SigmaDSP® core provides enhanced record and playback processing to improve overall audio quality. The record path includes two digital stereo microphone inputs and an analog stereo input path. The analog inputs can be configured for either a pseudo differential or a single-ended stereo source. A dedicated analog beep input signal can be mixed into any output path. The ADAU1781 includes a stereo line output and speaker driver, which makes the device capable of supporting dynamic speakers. The serial control bus supports the I2C® or SPI protocols, and the serial audio bus is programmable for I2 S, left-justified, right- justified, or TDM mode. A programmable PLL supports flexible clock generation for all standard rates and available master clocks from 11 MHz to 20 MHz.
