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CS485XX 数据表(PDF) 5 Page - Cirrus Logic

部件名 CS485XX
功能描述  32-bit Audio Decoder DSP Family
Download  26 Pages
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制造商  CIRRUS [Cirrus Logic]
网页  http://www.cirrus.com
标志 CIRRUS - Cirrus Logic

CS485XX 数据表(HTML) 5 Page - Cirrus Logic

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CS485xx Family Data Sheet
32-bit Audio Decoder DSP Family
DS734F3
Copyright 2009 Cirrus Logic, Inc.
5
CONFIDENTIAL
1. Documentation Strategy
The CS485xx Family Data Sheet describes the CS485xx family of multichannel audio processors.
This document should be used in conjunction with the following documents when evaluating or
designing a system around the CS485xx family of processors.
The scope of the CS485xx Family Data Sheet is primarily the hardware specifications of the
CS485xx family of devices. This includes hardware functionality, characteristic data, pinout, and
packaging information.
The intended audience for the CS485xx Family Data Sheet is the system PCB designer, MCU
programmer, and the quality control engineer.
2. Overview
The CS485xx DSP Family is designed to provide high-performance post-processing and mixing of
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.
There are three devices comprising the CS485xx family. The CS48520, CS48540 and CS48560 are
differentiated by the number of inputs and outputs available. All DSPs support dual input clock
domains and dual audio processing paths. All DSPs are available in a 48-pin QFP package. Please
refer to Table 2 on page 7 for the input, output, firmware features of each device.
2.1 Licensing
Licenses are required for all of the 3rd party audio processing algorithms listed in Section 3. Please
contact your local Cirrus Logic Sales representative for more information.
Table 1. CS485xx Family Related Documentation
Document Name
Description
CS485xx Family Data Sheet
This document
CS485xx Family Hardware User’s Manual
Includes detailed system design information including
Typical Connection Diagrams, Boot-Procedures, Pin
Descriptions, etc.
AN298 - CS485xx Family 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.


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