CS493115-CL View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS493115-CL

Multi-Standard Audio Decoder Family

Cirrus Logic 

CS49300 Family DSP

2. FAMILY OVERVIEW

The CS49300 family contains system on a chip

solutions for multichannel audio decompression

and digital signal processing. The CS49300 family

is split into 4 sub-families targeted at the DVD,

broadcast and audio/video receiver (AVR), and

effects and post processing markets.

This document focuses on the electrical features

and characteristics of these parts. Different

features are described from a hardware design

perspective. It should be understood that not all of

the features portrayed in this document are

supported by all of the versions of application code

available. The application code user’s guides

should be consulted to confirm which hardware

features are supported by the software.

The parts use a combination of internal ROM and

RAM. Depending on the application being used, a

download of application software may be required

each time the part is powered up. This document

uses “download” and “code load” interchangeably.

These terms should be interpreted as meaning the

transfer of application code into the internal

memory of the part from either an external

microcontroller or through the autoboot procedure.

2.1. CS493XX Document Strategy

The documents described below are integral in

defining the functionality and usage of the

CS39300 family of DSPs.

1) CS49300 Datasheet (DS339)

2) CS49300 Errata - (ER339) - This document

contain updates/corrections/exceptions to the

datasheet.

3) Application Note (AN162) - This document

contains firmware usage information for Broadcast

Systems. It serves mainly to assist the

microcontroller programmer but may also be highly

useful to the system designer.

4) Application Note (AN163) - This document

contains firmware usage information for Outboard

Decoder Systems - e.g. AVR. It serves mainly to

assist the microcontroller programmer but may

also be highly useful to the system designer.

Note: Please also contact your local Cirrus

Logic FAE to obtain other relevant documents

of new technology and also latest versions of

the above mentioned documents.

2.2. Multichannel Decoder Family of

Parts

CS49300 - DVD Audio Decoder. The CS49300

device is targeted at audio decoding in the DVD via

ES or PES in a serial or parallel bursty fashion for

MLP or for DVD Audio Pack Layer Support. (All the

other decoding/processing algorithms listed below

require delivery of PCM or IEC61937-packed

compressed data via I2S or LJ formatted digital

audio to the CS49300). Specifically the CS49300

will support all of the following

decoding/processing standards:

• Meridian Lossless Packing™ (MLP™)* (for ES

and PES data delivery only)

• DVD Audio Pack Layer Support* (for ES and

PES data delivery only)

• Dolby Digital™ (AC-3™) with

Dolby Pro Logic™

• Dolby Digital™ with Dolby Pro Logic™ plus

Cirrus Extra Surround™

• Dolby Digital™ with Dolby Pro Logic II™

• Dolby Digital™ with Dolby Pro Logic II™ plus

Cirrus Extra Surround™

• Virtual Dolby Digital™

• MPEG-2, Advanced Audio Coding Algorithm

(AAC)

• MPEG Multichannel

• MPEG Multichannel with Dolby Pro Logic II™

• MPEG Multichannel plus Cirrus Extra

Surround™

• MPEG-1, Layer 3 (MP3)

• DTS Digital Surround™

• DTS Digital Surround™ with

Dolby Pro Logic II™

• DTS Digital Surround™ plus Cirrus Extra

Surround™

• DTS-ES Extended Surround™ (DTS-ES

Discrete 6.1 & Matrix 6.1)

• DTS Neo:6™

• LOGIC5® (5.1 Channel, Max Fs=48kHz and

LOGIC7® (7.1 Channel, Max Fs=96kHz)

• VMAx VirtualTheater® (Virtual Dolby Digital)

• SRS TruSurround™ (Virtual Dolby Digital and

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DS339F7

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