General Description

The CS42324 is a highly integrated stereo audio CODEC. The CS42324 performs stereo analog-to-digital (A/D) and up to four channels of digital-to-analog (D/A) conversion of up to 24-bit serial values at sample rates up to 96 kHz.

A 5:1 stereo input multiplexer is included for selecting between line-level inputs. The output of the input multiplexer is followed by an advanced 3rd-order, multi-bit delta-sigma modulator and digital filtering/decimation. Sampled data is transmitted by the serial audio interface at rates from 4 kHz to 96 kHz, in either Slave or Master Mode.

System Features

Direct Interface with 1.8 V to 3.3 V Logic Levels

Supports Asynchronous Serial Port Operation

– Two Independent Clock Domains

– ADC, DAC1, and DAC2 can be Independently Assigned to the Two Clock Domains

– Each Serial Port Supports Master or Slave Operation

Internal Digital Loopback

+3.3 V Analog Power Supply

+3.3 V Digital Power Supply

+9 V to +12 V High-Voltage Power Supply

Hardware or Software Mode Configuration

– Supports I²C® and SPI™Software Interface