Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Multi-Standard Audio Decoder Family
Features
l CS4930X: DVD Audio Sub-family
— PES layer decode for A/V sync
— DVD Audio Pack Layer Support
— Meridian Lossless Packing (MLP)™
— Dolby Digital™
— MPEG Multi-Channel
— DTS Digital Surround™
l
CS4931X: Broadcast Sub-family
— PES layer decode for A/V sync
— MPEG Advanced Audio Coding Algorithm (AAC)
— MPEG Multi Channel
— Dolby Digital
l
CS4932X: AVR Sub-family
— Dolby Digital with integrated code
— DTS decoding with integrated DTS tables & code
— Crystal Original Surround with integrated code
— MPEG Advanced Audio Coding Algorithm (AAC)
— MPEG Multi-Channel
l CS4933X: General Purpose Audio DSP
— THX™ and THX Surround EX
— Car Audio
— Mixer Applications
l
Features are a super-set of the CS4923/4/5/6/7/8
— 8 channel output, including dual zone output
capability
— Supports up to 192 kHz Fs @ 24 bit throughput
— Increased memory/MIPs
— SRAM Interface for increased delay and buffer
capability
— MPEG Layer 3 (MP3)
Description
The CS493XX is a family of multichannel audio decoders
intended to supersede the CS4923/4/5/6/7/8 family as the
leader of audio decoding in both the DVD, broadcast and
receiver markets. The family will be split into parts tailored
for each of these distinct market segments.
For the DVD market, parts will be offered which support
Meridian Lossless Packing (MLP), Dolby Digital, MPEG
Multi-Channel, DTS and subsets thereof. For the receiver
market, parts will be offered which support Dolby Digital,
MPEG Multi-Channel, DTS, AAC and subsets thereof.
For the broadcast market parts will be offered which
support Dolby Digital, MPEG Advanced Audio Coding
(AAC), and MPEG Multi-Channel.
Under the Crystal brand, Cirrus Logic is the only single
supplier of high-performance 24-bit multi-standard audio
DSP decoders, DSP firmware, and high-resolution data
converters. This combination of DSPs, system firmware,
and data converters simplify rapid creation of world-class
high-fidelity products.
Ordering Information: See page 68
APPLICATION FEATURES
CS49300 DVD Audio MLP, AC3, DTS and MPEG5.1
CS49310 Broadcast AAC, AC3, MPEG5.1
CS49325 AVR AC3(IBA), MPEG5.1
CS49326 AVR AC3(IBA), DTS(IBA), MPEG5.1
CS49329 AVR
AC3(IBA), AAC, DTS, MPEG5.1,
PCM Pass-through (IBA)
CS49330 Audio DSP THX
DATA7:0,
CS
Parallel or Serial Host Interface
CMPCLK,
Compressed
PLL
FILT1
VA
Framer
DD
DC
MCLK
SCLK
LRCLK
AUDATA[2.0]
XMT958/AUDATA3
CMPDAT,
SCLKN2
CMPREQ,
LRCLKN2
SCLKN1,
STCCLK2
LRCLKN1
SDATAN1
Data Input
Interface
Digital
Audio
Input
Interface
FILT2 AGND
Clock Manager
CLKIN
CLKSEL
Shifter
Input
Buffer
Controller
RAM Input
Buffer
DGND[3:1] VD[3:1]
24-Bit
DSP Processing
RAM
Program
Memory
RAM
Data
Memory
ROM
Program
Memory
ROM
Data
Memory
STC
EMAD7:0,
GPIO7:0
R/W,
EMOE
,
GPIO11
RD
,
DS,
EMWR
,
GPIO10
WR
,
SCDOUT,
PSEL,
GPIO9
SCDIO,
A0,
SCCLK
A1,
SCDIN
ABOOT,
INTREQ
EXTMEM,
GPIO8
Output
Formatter
RAM
Buffer
Output
RESET
SDATAN2
CS49326
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