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Cirrus Logic

CS495304 Datasheet Preview

CS495304 Datasheet

Audio Decoder DSP

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CS4953xx Data Sheet
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 96/24Discrete 7.1, DTS-ESDiscrete 7.1,
DTS-ESMatrix 6.1, DTS Neo:6®, DTS Neural
SurroundDTS Surround Sensation Speaker
— MPEG-2 AACLC 5.1
— SRS® Circle Surround® II, SRS Circle Surround Auto,
SRS Circle Surround Decoder Optimized, SRS
TruVolume7.1 (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
Audio Decoder DSP Family with
Dual 32-bit DSP Engine Technology
16 Ch x 32-bit PCM Out with Dual 192 kHz S/PDIF Tx
Two SPI/I2CPorts
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.
Serial
Control 1
12 Ch PCM
Audio In
S/PDIF S/PDIF
16 Ch PCM
Audio Out
Serial
Control 2
Parallel
Control
GPIO
Debug
Coyote 32-bit
DSP A
D
M
A
Coyote 32-bit
DSP B
PXY
PXY
Ext. Memory Controller
STC
TMR1
TMR2
PLL
http://www.cirrus.com
Copyright © 2012 Cirrus Logic, Inc.
All Rights Reserved
FEB 2012
DS705F2




Cirrus Logic

CS495304 Datasheet Preview

CS495304 Datasheet

Audio Decoder DSP

No Preview Available !

Table of Contents
CS4953xx Data Sheet
32-bit Audio Decoder DSP Family
1 Documentation Strategy ............................................................................................................4
2 Overview .....................................................................................................................................4
2.1 Migrating from CS495xx(2) to CS4970x4 ................................................................................................. 5
2.2 Licensing .................................................................................................................................................. 5
3 Code Overlays ............................................................................................................................5
4 Hardware Functional Description ............................................................................................6
4.1 Coyote DSP Core ..................................................................................................................................... 6
4.1.1 DSP Memory ...............................................................................................................................6
4.1.2 DMA Controller ............................................................................................................................7
4.2 On-chip DSP Peripherals ......................................................................................................................... 7
4.2.1 Digital Audio Input Port (DAI) .......................................................................................................7
4.2.2 Digital Audio Output Port (DAO) ..................................................................................................7
4.2.3 Serial Control Port 1 & 2 (I2C or SPI) ..........................................................................................7
4.2.4 Parallel Control Port ....................................................................................................................7
4.2.5 External Memory Interface ..........................................................................................................7
4.2.6 General Purpose Input/Output (GPIO) ........................................................................................7
4.2.7 Phase-locked Loop (PLL)-based Clock Generator ......................................................................8
4.3 DSP I/O Description ................................................................................................................................. 8
4.3.1 Multiplexed Pins ..........................................................................................................................8
4.3.2 Termination Requirements ...........................................................................................................8
4.3.3 Pads ............................................................................................................................................8
4.4 Application Code Security ........................................................................................................................ 8
5 Characteristics and Specifications ..........................................................................................8
5.1 Absolute Maximum Ratings ...................................................................................................................... 8
5.2 Recommended Operating Conditions ...................................................................................................... 9
5.3 Digital DC Characteristics ........................................................................................................................ 9
5.4 Power Supply Characteristics .................................................................................................................. 9
5.5 Thermal Data (144-Pin LQFP) ............................................................................................................... 10
5.6 Thermal Data (128-pin LQFP) ................................................................................................................ 10
5.7 Switching Characteristics—RESET ......................................................................................................... 11
5.8 Switching Characteristics — XTI ............................................................................................................ 11
5.9 Switching Characteristics — Internal Clock ............................................................................................ 12
5.10 Switching Characteristics — Serial Control Port - SPI Slave Mode ..................................................... 12
5.11 Switching Characteristics — Serial Control Port - SPI Master Mode ................................................... 13
5.12 Switching Characteristics — Serial Control Port - I2C Slave Mode ...................................................... 14
5.13 Switching Characteristics — Serial Control Port - I2C Master Mode .................................................... 15
5.14 Switching Characteristics — Parallel Control Port - Intel Slave Mode ................................................. 16
5.15 Switching Characteristics — Parallel Control Port - Motorola Slave Mode ......................................... 18
5.16 Switching Characteristics — Digital Audio Slave Input Port ................................................................. 20
5.17 Switching Characteristics — Digital Audio Output Port ........................................................................ 21
5.18 Switching Characteristics — SDRAM Interface .................................................................................... 22
6 Ordering Information ...............................................................................................................26
7 Environmental, Manufacturing, and Handling Information .................................................26
8 Device Pin-Out Diagram ..........................................................................................................27
8.1 128-Pin LQFP Pin-Out Diagram ............................................................................................................. 27
8.2 144-Pin LQFP Pin-Out Diagram ............................................................................................................ 28
9 Package Mechanical Drawings ...............................................................................................29
DS705F2
2


Part Number CS495304
Description Audio Decoder DSP
Maker Cirrus Logic
Total Page 30 Pages
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