CS47048 Data Sheet

Audio SOC Processor Family

6

Copyright 2008 Cirrus Logic

DS787A7

1. Documentation Strategy

The CS47048 Data Sheet describes the CS47048 audio processors. This document should be

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

the CS47048 processors

The scope of the CS47048 Data Sheet is primarily the hardware specifications of the CS47048

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

information.

The intended audience for the CS47048 Data Sheet is the system PCB designer, MCU

programmer, and the quality control engineer.

2. Overview

The CS47048 DSP is designed to provide high-performance post-processing and mixing of analog

and digital audio. The dual clock domain provided on the PCM inputs allows for the mixing of audio

streams with different sampling frequencies. The low-power standby preserves battery life for

applications which are always on, but not necessarily processing audio, such as automotive audio

systems.

The CS47048 utilizes voltage-out DACs and is capable of supporting dual input clock domains and

dual output clock domains through the use of the internal SRCs. The CS47048 is available in a

100-pin LQFP package. Refer to Table 2 on page 7 for the input, output, and firmware

configurations for the CS47048 DSP.

2.1 Licensing

Please contact your local Cirrus Logic Sales representative for more information.

Document Name

Description

CS47048 Data Sheet

This document

CS47048 System Designer’s Guide

Includes detailed system design information

including Typical Connection Diagrams, Boot-

Procedures, Pin Descriptions, Etc.

AN333 - CS47048 Firmware User’s Manual

Includes detailed firmware design information

including signal processing flow diagrams and

control API information

DSP Composer User’s Manual

Includes detailed configuration and usage

information for the GUI development tool.