CS4970x4 Data Sheet

32-bit High Definition Audio Decoder DSP Family

DS752F1

4

1 Documentation Strategy

The CS4970x4 data sheet describes the CS4970x4 family of multichannel audio decoders. This document

should be used in conjunction with the following documents when evaluating or designing a system around the

CS4970x4 family of processors.

The scope of the CS4970x4 data sheet is primarily to provide hardware specifications of the CS4970x4 family

of devices. This includes hardware functionality, characteristic data, pinout, and packaging information.

The intended audience for the CS4970x4 data sheet is the system PCB designer, MCU programmer, and the

quality control engineer.

2 Overview

The CS4970x4 DSP Family, combined with Cirrus Logic’s comprehensive library of audio processing

algorithms, enables the development of next-generation high-definition audio solutions. Cirrus Logic also

provides a broad array of digital interface products and audio converters to meet your audio system-level

design requirements.

Note:

The CS4970x4 is available in a 128-pin LQFP package.

The audio processing features of the CS4970x4 product family are a superset of audio features available in

the CS4953xx product family.

Refer to Table 2 on page 5 for the speed and firmware features of the CS4970x4 product family.

Table 1. CS4970x4 Related Documentation

Document Name

Description

CS4970x4 Data Sheet

This document

CS495314/CS4970x4 System Designer’s Guide

A new consolidated documentation set that includes:

• Detailed system design information including

Typical Connection Diagrams, Boot-Procedures,

Pin Descriptions, Etc. Also describes use of DSP

Condenser tool.

• Detailed firmware design information including

signal processing flow diagrams and control API

information

AN288 - CS4953xx/CS4970x4 Firmware User’s Manual

Includes detailed firmware design information

including signal processing flow diagrams and control

API information