CS49400 Datasheet, PDF (1/100 Pages) Cirrus Logic – Multi-Standard Audio Decoder Family

CS49400 Family DSP
Multi-Standard Audio Decoder
Features
Description
CS49300 Legacy Audio Decoder Support
Dolby Digital EX^TM, Dolby Pro Logic II^TM
DTS-ES 96/24^TM, DTS 96/24^TM, DTS-ES
Discrete 6.1^TM, DTS-ES Matrix 6.1^TM, DTS
Digital Surround^TM and DTS Virtual 5.1^TM
MPEG-2: AAC Multichannel 5.1
MPEG Multichannel and Musicam
MPEG-1/2, Layer III (MP3)
DTS Neo:6^TM, LOGIC7^®, SRS Circle
Surround II^TM
Cirrus Extra Surround^TM, Cirrus Original
Surround 6.1 (C.O.S. 6.1)^TM
THX Surround EX^TM, THX Ultra2 Cinema^TM
12-Channel Serial Audio Inputs
Integrated 8K Byte Input Buffer
Powerful 32-bit Audio DSP
Customer Software Security Keys
Large On-chip X,Y, and Program RAM
Supports SDRAM, SRAM, FLASH
memories
16-channel PCM output
Dual S/PDIF Transmitters
SPI Serial, and Motorola^® and Intel^® Parallel
Host Control Interfaces
GPIO support for all common sub-circuits
The CS49400 Audio Decoder DSP is targeted as a market-
specific consumer entertainment processor for AV Receivers
and DVD Audio/Video Players. The device is constructed using
an enhanced version of the CS49300 Family DSP audio
decoder followed by a 32-bit programmable post-processor
DSP, which gives the designer the ability to add product
differentiation through the Cirrus Framework^TM programming
structure and Framework module library. Dolby Digital Pro
Logic II, DTS Digital Surround, MPEG Multichannel, and Cirrus
Original Surround 6.1 PCM Effects Processor (capable of
generating such DSP audio modes as: Hall, Theater, Church)
are included in the cost of the CS49400 Family DSP. Additional
algorithms available through the Crystal Ware^TM Software
Licensing Program, give the designer the ability to further
deliver end-product differentiation.
The CS49400 contains sufficient on-chip SRAM to support
decoding all major audio decoding algorithms available today
including: AAC Multichannel, DTS 96/24, DTS-ES 96/24. The
CS49400 also supports a glueless SDRAM/SRAM for
increased all-channel delays. The SRAM interface also
supports connection to an external byte-wide EPROM for code
storage or Flash memory thus allowing products to be field-
upgradable as new audio algorithms are developed.
This chip, teamed with Crystal Ware^TM certified decoder
library, Cirrus digital interface products and mixed signal data
converters, enables the conception and design of next
generation digital entertainment products.
Ordering Information: See page 98
Compressed
Digital
Interface
Digital
Audio
Input
DSP AB
PLL Clock
Manager
Frame
Shifter
Input
Buffer
RAM
Multi-Standard
Audio Decoder
Parallel or Serial
Host Interface
SAI 0
SAI 1
SAI 2
SAI 3
DSP C
Serial
Audio
Interface
Programmable
32-Bit DSP
DSP
RAM
DSP
ROM
External Memory
Interface
Digital
Audio
Output
DAO 0
DAO 1
GPIO and I/O
Controller
Parallel or Serial
Host Interface
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
P.O. Box 17847, Austin, Texas 78760
[phone] FAX: [phone]
http://www.cirrus.com
© Copyright Cirrus Logic, Inc. 2002
(All Rights Reserved)
JUL ‘02
DS536PP2
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