CS4970x4 Data Sheet
FEATURES
Multi-standard 32-bit High Definition Audio Decoding plus
High Definition Audio Decoder DSP
Post-Processing
Family with Dual 32-bit DSP Engine Technology
Supports high-definition audio formats including:
— Dolby Digital® Plus
— Dolby® TrueHD
Up to 12 Channels of 32-bit Serial Audio Input
— DTS-HD® High Resolution Audio
— DTS-HD® Master Audio
Customer Software Security Keys
16 Ch x 32-bit PCM Out with Dual 192 kHz SPDIF Tx
Two SPI™/I2C™ ports
— DTS Express™
Additional Applications Library
One Parallel Port (144-pin LQFP package only)
Large On-chip X, Y, and Program RAM & ROM
SDRAM and Serial Flash Memory Support
— Dolby Digital® EX, Dolby® Pro Logic® IIz, Dolby
Headphone 2®, Dolby® Virtual Speaker 2®, Audistry®
— DTS-ES 96/24™ Discrete 7.1, DTS-ES™ Discrete 7.1, DTS-
ES™ Matrix 6.1, DTS Neo:6®, DTS Neural Surround™
— DSD®
The CS4970x4 DSP family is an enhanced version of the
CS4953x DSP family with higher overall performance. In
addition to all the mainstream audio processing codes in on-
chip ROM that the CS4953x 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
CS4953x device with minor hardware and software changes.
— MPEG-2 AAC™ LC 5.1
— SRS® CS2®, SRS TruVolume™, SRS® TruSurround
HD4™, WOW HD™,
— THX® Ultra2™, THX® ReEQ™
— Thomson MP3 Surround
— Audyssey 2EQ™ Module
Cirrus Logic’s Applications Library
— Cirrus Original Multi-Channel Surround 2 (COMS2),
Cirrus Band Xpander™, Cirrus Virtualization Technology,
Cirrus Intelligent Room Calibration 2 (IRC2)
— Crossbar Mixer, Signal Generator
Ordering Information
See page 28 for ordering information.
— Advanced Post-Processors including: 7.1 Bass Manager,
Tone Control, 11- Band Parametric EQ, Delay, 2:1/4:1
Decimator, 1:2/1:4 Upsampler
Serial
Control 1
Serial
Control 2
Parallel
Control
GPIO
Debug
12 Ch. Audio In /
6 Ch. SACD In
STC
D
M
A
Coyote 32-bit
Coyote 32-bit
DSP B
TMR1
TMR2
DSP A
S/PDIF
S/PDIF
P
X
Y
P
X
Y
16 Ch PCM
Audio Out
PLL
Ext. Memory Controller
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Preliminary Product Information
Copyright 2009 Cirrus Logic
Nov ‘09
DS752PP8
http://www.cirrus.com