Documentation strategy, Overview, 1 licensing – Cirrus Logic CS48DV2B User Manual
Page 5: Documentation strategy 2. overview, 1 li, Table 1. cs48dv2b dsp related documentation, Confidenti a l dra ft delp hi
CS48DV2B Data Sheet
32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby
DS875F2
Copyright 2009 Cirrus Logic
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CONFIDENTIAL
CONFIDENTI
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1. Documentation Strategy
The CS48DV2B Data Sheet describes CS48DV2B multichannel audio processors. This document
should be used in conjunction with the following documents when evaluating or designing a system
around the CS48DV2B processors.
The scope of the CS48DV2B Data Sheet is primarily the hardware specifications of the CS48DV2B
devices. This includes hardware functionality, characteristic data, pinout, and packaging information.
The intended audience for the CS48DV2B Data Sheet is the system PCB designer, MCU
programmer, and the quality control engineer.
2. Overview
The CS48DV2B DSP 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.
The CS48DV2B supports dual input clock domains and dual audio processing paths. The
CS48DV2B is available in a 48-pin QFP package. Please refer to
for the input,
output, firmware features of each device.
2.1 Licensing
Licenses are required for all of the 3
rd
party audio processing algorithms listed in
Please
contact your local Cirrus Logic Sales representative for more information.
Table 1. CS48DV2B DSP Related Documentation
Document Name
Description
CS48DV2B 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.
AN298VPMA,Audistry
®
by Dolby
®”
Describes API used to control the Audistry firmware
module.
AN298PPMN, Dolby® Volume Firmware User’s
Manual for the CS48DV2x Family
Describes API used to control the Dolby Volume
firmware module.