Cirrus Logic CS4953xx - Manual

Copyright © 2012 Cirrus Logic, Inc. FEB 2012
All Rights Reserved DS705F2
Audio Decoder DSP Family with
Dual 32-bit DSP Engine Technology
CS4953xx Data Sheet
http://www.cirrus.com
FEATURES
 Multi-standard 32-bit Audio Decoding plus Post
processing

Supports legacy audio formats and a wide array of post-
processing
— Dolby Digital
®
EX, Dolby Pro Logic
®
II, IIx, IIz 7.1,
Dolby Headphone ® 2, Dolby Virtual Speaker ® 2,
Dolby Volume
®
(original), Dolby Volume 258
™
(lite),
Audistry
®
— DTS-ES 96/24 ™ Discrete 7.1, DTS-ES ™ Discrete 7.1,
DTS-ES
™
Matrix 6.1, DTS Neo:6
®
, DTS Neural
Surround
™
DTS Surround Sensation Speaker
— MPEG-2 AAC ™ LC 5.1
— SRS ® Circle Surround ® II, SRS Circle Surround Auto,
SRS Circle Surround Decoder Optimized, SRS
TruVolume
™
7.1 (V 2.1.0.0), SRS TruSurround
HD/HD4 ® , SRS WOW HD ™ , SRS CS Headphone ™ ,
SRS Circle Cinema 3D
™
, SRS Studio Sound HD
™
— THX
®
Ultra2
™
, THX Select2
™

Cirrus Logic’s Applications Library
— Cirrus Original Multi-Channel Surround 2 (COMS2),
Cirrus Band XpandeR
™
, Cirrus Virtualization
Technology (CVT), Cirrus Intelligent Room Calibration
2 (IRC2), Cirrus Bass Enhancement (CBE)
— Crossbar Mixer, Signal Generator
— Advanced Post-Processors including: 7.1 Bass
Manager Quadruple Crossover, Tone Control, 11-
Band Parametric EQ, Delay, 2:1/4:1 Decimator,
1:2/1:4 Upsampler

Up to 12 Channels of 32-bit Serial Audio Input

16 Ch x 32-bit PCM Out with Dual 192 kHz S/PDIF Tx

Two SPI
™
/I
2
C
™
Ports

Customer Software Security Keys

Large On-chip X, Y, and Program RAM & ROM

SDRAM and Serial Flash Memory Support
The CS4953xx DSP family are the enhanced versions of the
CS495xx DSP family with higher overall performance and
lower system cost. The CS4953xx includes all mainstream
audio processing codes in on-chip ROM. This saves external
memory for code storage. In addition, the intensive decoding
tasks of Dolby Digital Surround EX
® , AAC multi-channel,
DTS-ES 96/24, THX Ultra2 Cinema and Dolby Headphone
can be accomplished without the expense of external
SDRAM memory.
With larger internal memories than the CS495xx, the
CS49531x is designed to support up to 150 ms per channel
of lip-sync delay. With 150 MHz internal clock speed, the
CS4953xx supports the most demanding post-processing
requirements. It is also designed for easy upgrading.
Customers currently using the CS495xx can upgrade to the
CS4953xx with minor hardware and software changes.
Ordering Information
See page 28 for ordering information.
Coyote 32-bit
DSP A
D
M
A
Coyote 32-bit
DSP B
Ext. Memory Controller
P
S/PDIF
X Y P X Y
Serial
Control 1
16 Ch PCM
Audio Out
Serial
Control 2
Parallel
Control
GPIO Debug
STC
TMR1
TMR2
PLL
S/PDIF
12 Ch PCM
Audio In