Cirrus Logic CS4970x4 - Manual

Copyright © 2014 Cirrus Logic, Inc. FEB 2014
All Rights Reserved DS752F1
High Definition Audio Decoder DSP Family
with Dual 32-bit Engine Technology
CS4970x4 Data Sheet
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
http://www.cirrus.com
FEATURES

Multi-standard 32-bit high-definition audio decoding plus
post-processing

Supports high-definition audio formats including:
— Dolby Digital
®
Plus
— Dolby
®
TrueHD
— DTS-HD ® High Resolution Audio
— DTS-HD Master Audio ™
— DTS Express ™ 5.1
 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

Customer Software Security Keys

16 Ch x 32-bit PCM Out with Dual 192 kHz S/PDIF Tx

Two SPI
™
/I
2
C
™
ports

Large On-chip X, Y, and Program RAM & ROM
 SDRAM and Serial Flash Memory Support
The CS4970x4 DSP family is an enhanced version of the
CS4953xx DSP family with higher overall performance. In
addition to all the mainstream audio processing codes in on-
chip ROM that the CS4953xx DSP offers, the CS4970x4 device
family also supports the decoding of major high-definition audio
formats. Additionally, the CS4970x4, a dual-core device,
performs the high-definition audio decoding on the first core,
leaving the second core available for audio post-processing and
audio enhancement. The CS4970x4 device supports the most
demanding audio post processing requirements. It provides an
easy upgrade path to systems currently using the CS495xx or
CS4953xx device with minor (or no) hardware and software
changes.
Ordering Information
See page 27 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. Audio In /
6 Ch. SACD In