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ADAU1787BCBZRL is a codec with four inputs and two outputs that incorporates two digital signal processors. The path from the analog input to the DSP core to the analog output is optimized for low latency and is ideal for noise cancelling headsets. 

Features

Programmable FastDSP audio processing engine

Up to 768 kHz sample rate

Biquad filters, limiters, volume controls, mixing

28-bit SigmaDSP audio processing core

Visually programmable using SigmaStudio

Up to 50 MIPS performance

Low latency, 24-bit ADCs and DACS

96 dB SNR (signal through PGA and ADC with A-weighted filter)

105 dB combined SNR (signal through DAC and headphone with A-weighted filter)

Serial port fsyxc frequency from 8 kHz to 768 kHz

5 μs group delay (fs = 768 kHz) analog in to analog out with FastDSP bypass (zero instructions)

4 single-ended analog inputs, configurable as microphone or line inputs

8 digital microphone inputs

2 analog differential audio outputs, configurable as either line output or headphone driver

PLL supporting any input clock rate from 30 kHz to 27 MHz Full-duplex, 4-channel ASRCs

2, 16-channel serial audio ports supporting I2S, left justified,or up to TDM16

8 interpolators and 8 decimators with flexible routing

Analog AVDD at 1.8V typical

Digital l/0 I0VDD at1.1 Vto 1.98 v

Applications

Noise cancelling handsets, headsets, and headphones

Bluetooth ANC handsets, headsets, and headphones

Personal navigation devices

Digital still and video cameras

Musical instrument effect processors

Multimedia speaker systems

Smartphones

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