CS49300 Family DSP
™
™
•
•
Dolby Digital (AC-3 ) with
2. FAMILY OVERVIEW
™
Dolby Pro Logic
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.
™
™
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
™
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.
•
•
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
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•
•
MPEG-1, Layer 3 (MP3)
™
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.
DTS Digital Surround
™
DTS Digital Surround with
™
Dolby Pro Logic II
™
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•
DTS Digital Surround plus Cirrus Extra
™
Surround
™
DTS-ES Extended Surround
Discrete 6.1 & Matrix 6.1)
(DTS-ES
™
•
•
DTS Neo:6
®
LOGIC5 (5.1 Channel, Max Fs=48kHz and
LOGIC7 (7.1 Channel, Max Fs=96kHz)
2.1. 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-
®
•
•
VMAx VirtualTheater (Virtual Dolby Digital)
™
SRS TruSurround (Virtual Dolby Digital and
DTS Virtual 5.1 Versions)
™
™
•
•
•
SRS Circle Surround I/II
®
HDCD
2
packed compressed data via I S or LJ formatted
Cirrus P.D.F. (Dolby Pro Logic 2Fs Decoder
and PCM Upsampler)
digital audio to the CS49300). Specifically the
CS49300 will support all of the following
decoding/processing standards:
•
Cirrus PL2_2FS (Dolby Pro Logic II 2Fs
Decoder and PCM Upsampler)
™
™
•
Meridian Lossless Packing (MLP )* (for ES
and PES data delivery only)
Please refer to the CS4932x/CS49330 Part Matrix
vs. Code Matrix (PDF) document available from
the CS49300 Web Site Page for the latest listing of
audio decoding/processing algorithms. The part
•
DVD Audio Pack Layer Support* (for ES and
PES data delivery only)
DS339PP4
21
CIRRUS [ CIRRUS LOGIC ]
