General Description

The CS8406 is a monolithic CMOS device which encodes and transmits audio data according to the AES3, IEC60958, S/PDIF, or EIAJ CP1201 standards. The CS8406 accepts audio and digital data, which is then multiplexed, encoded, and driven onto a cable. The audio data is input through a configurable, 3-wire input port. The channel status and user bit data are in put through an SPI™ or I²CTM microcontroller port, and may be assembled in block-sized buffers. For systems

with no microcontroller, a Stand-Alone Mode allows direct access to channel status and user bit data pins.

Features

Complete EIAJ CP1201, IEC-60958, AES3, S/PDIF-compatible Transmitter

+3.3 V or 5.0 V Digital Supply (VD)

+3.3 V or 5.0 V Digital Interface (VL)

On-Chip Channel Status and User Bit Buffer Memories Allow Block-Sized Updates

Flexible 3-Wire Serial Digital Audio Input Port

Up to 192-kHz Frame Rate

Microcontroller Write Access to Channel Status and User Bit Data

On-Chip Differential Line Driver

Generates CRC Codes and Parity Bits

Stand-Alone Mode Allows Use Without a Microcontroller