This document describes how to interface the ADSP-21161 to the AD1836 for use in professional, consumer, or automotive audio systems. Using the AD1836 gives the DSP audio system designer more flexibility for capture and playback of "professional-quality" 24-bit audio by providing the capability of processing multiple high-fidelity digital audio signals simultaneously. The AD1836 Multichannel 24-bit 96kHz Codec is a high-performance, single-chip 5 Volt stereo Codec system providing three stereo DACs and two stereo ADC’s using patented Sigma-delta conversion techniques. The ADCs and DACs are capable of maintaining 105 dB SNR and Dynamic Range. With extended serial port TDM and auxiliary I/O features, the AD1836 can also interfaced to additional external audio I2S devices, providing a "backdoor" path to the TDM bus for 3 external I2S devices, to allow 8-channel I/O. The ability to utilize 8 input/output channels of audio enables the use of the AD1836 in a wide variety of professional and consumer audio applications.
This document details how to interface the Analog Devices ADSP-21161 SIMD SHARC DSP with the AD1836 24-bit/96kHz Multichannel Codec. It focuses specifically on the Time-Division Multiplexed (TDM) interface mode, which allows for professional-quality audio processing without additional hardware glue logic.
The guide provides practical implementation details including assembly and C code examples for interface drivers. It discusses the benefits of using 32-bit audio processing to maintain signal integrity for 24-bit audio streams and outlines the capabilities of both components within systems such as digital mixers, effects processors, and automotive audio.
This application note describes how to interface the ADSP-21161 to the AD1836 for use in professional, consumer, or automotive audio systems.
The AD1836 can generate sample rates of 48 kHz and 96 kHz.
The ADCs and DACs are capable of maintaining 105 dB SNR and Dynamic Range.