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Copyright 2009 Cirrus Logic

DS752PP8

CS4970x4 Data Sheet

32-bit High Definition Audio Decoder DSP Family

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 the 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, together 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.

The CS4970x4 is available in 144-pin and 128-pin LQFP packages. The audio processing features of the CS4970x4

product family are a superset of audio features available in the CS4953xx product family.

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

Table 1. CS4970x4 Related Documentation

Document Name

Description

CS4970x4 Data Sheet

This document

CS4953x4/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/CS497xxx Firmware User’s Manual

Includes detailed firmware design information

including signal processing flow diagrams and

control API information