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Cirrus Logic

CS4928 Datasheet Preview

CS4928 Datasheet

Multi-Channel Digital Audio Decoders

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CS4923/4/5/6/7/8/9
Multi-Channel Digital Audio Decoders
l CS4923/4/5/6/7/8 features
— Optional Virtual 3D Output
— Simulated Surround and Programmable Effects
— Real Time Autodetection of Dolby Digital®,
DTS®, MPEG Multi-Channel and PCM
— Flexible 6-channel master or slave output
l CS4923/4/5/6/7/8/9 features
— IEC60958/61937 transmitter for compressed-
data or linear-PCM output
— Dedicated 8 kilobyte input buffer
— DAC clock via analog phase-locked loop
— Dedicated byte wide or serial host interface
— Multiple compressed data input modes
— PES layer decode for A/V synchronization
— 96-kHz-capable PCM I/O, master or slave
— Optional external memory and auto-boot
— +3.3-V CMOS low-power, 44-pin package
l CS4923/4/5/6 features
— Capable of Dolby Digital® Group A Performance
— Dolby bass manager and crossover filters
— Dolby Surround Pro Logic® Decoding
l CS4925/7: MPEG-2 Multi-Channel Decoder
l CS4926/8: DTS Multi-Channel Decoder
l CS4929: AAC 2-Channel (Low Complexity)
and MPEG-2 Stereo Decoder
Description
The CS4923/4/5/6/7/8 is a family of multi-channel digital
audio decoders, with the exception of the CS4929 as the
only stereo digital audio decoder. The CS4923/4/5/6 are
designed for Dolby Digital and MPEG-2 Stereo decoding. In
addition the CS4925 adds MPEG-2 multi-channel decoding
capability and the CS4926 provides DTS decoding. The
CS4927 is an MPEG-2 multi-channel decoder and the
CS4928 is a DTS multi-channel decoder. The CS4929 is an
AAC 2-channel and MPEG-2 stereo decoder. Each one of
the CS4923/4/5/6/7/8/9 provides a complete and flexible
solution for multi-channel (or stereo in the case of the
CS4929) audio decoding in home A/V receiver/amplifiers,
DVD movie players, out-board decoders, laser-disc players,
HDTV sets, head-end decoders, set-top boxes, and similar
products.
Cirrus Logic’s Crystal Audio Division provides a complete set
of audio decoder and auxiliary audio DSP application
programs for various applications. For all complementary
analog and digital audio I/O, Crystal Audio also provides a
complete set of high-quality audio peripherals including:
multimedia CODECs, stereo A/D and D/A converters and
IEC60958 interfaces. Of special note, the CS4226 is a
complementary CODEC providing a digital receiver, stereo
A/D converters, and six 20-bit DACs in one package.
ORDERING INFORMATION
CS4923xx-CL 44-pin PLCC (xx = ROM revision)
CRD4923 Reference design with CS4226
CDB4923 Evaluation board
RESET
RD, WR, SCDIO,
DATA7:0,
R/W, DS, SCDOUT,
EMAD7:0,
EMOE, EMWR, PSEL, A0, A1, ABOOT,
GPIO7:0 CS GPIO11 GPIO10 GPIO9 SCCLK SCDIN INTREQ
EXTMEM,
GPIO8
CMPDAT,
SDATAN2
CMPCLK,
SCLKN2
CMPREQ,
LRCLKN2
SCLKN1,
STCCLK2
LRCLKN1
SDATAN1
CLKIN
CLKSEL
Compressed
Data Input
Interface
Framer
Shifter
Digital
Audio
Input
Interface
Input
Buffer
Controller
RAM Input
Buffer
PLL
Clock Manager
Parallel or Serial Host Interface
24-Bit
DSP Processing
RAM RAM
Program Data
Memory Memory
ROM ROM
Program Data
Memory Memory
STC
RAM
Output
Buffer
DD
DC
Output
Formatter
MCLK
SCLK
LRCLK
AUDATA[2.0]
XMT958
FILT2 FILT1 VA AGND
DGND[3:1] VD[3:1]
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
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 1999
(All Rights Reserved)
AUG ‘99
DS262F2
1




Cirrus Logic

CS4928 Datasheet Preview

CS4928 Datasheet

Multi-Channel Digital Audio Decoders

No Preview Available !

CS4923/4/5/6/7/8/9
TABLE OF CONTENTS
1. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 4
ABSOLUTE MAXIMUM RATINGS ............................................................................................ 4
RECOMMENDED OPERATING CONDITIONS ........................................................................ 4
DIGITAL D.C. CHARACTERISTICS .......................................................................................... 4
POWER SUPPLY CHARACTERISTICS ................................................................................... 4
SWITCHING CHARACTERISTICS—RESET ............................................................................ 5
SWITCHING CHARACTERISTICS—CMPDAT, CMPCLK........................................................ 6
SWITCHING CHARACTERISTICS—CLKIN ............................................................................. 7
SWITCHING CHARACTERISTICS—INTEL® HOST MODE..................................................... 8
SWITCHING CHARACTERISTICS—MOTOROLA® HOST MODE ........................................ 10
SWITCHING CHARACTERISTICS—DIGITAL AUDIO INPUT................................................ 16
SWITCHING CHARACTERISTICS—DIGITAL AUDIO OUTPUT............................................ 18
2. FAMILY OVERVIEW .............................................................................................................. 20
2.1 Multi-channel Decoder Family of Parts ............................................................................ 21
2.2 Document Strategy .......................................................................................................... 21
2.2.1 Hardware Documentation ............................................................................... 22
2.2.2 CS4923/4/5/6/7/8/9 Application Code User’s Guides ..................................... 22
2.3 Using the CS4923/4/5/6/7/8/9 .......................................................................................... 22
3. TYPICAL CONNECTION DIAGRAMS ................................................................................... 23
3.1 Multiplexed Pins ............................................................................................................... 23
3.2 Termination Requirements ............................................................................................... 24
3.3 Phase Locked Loop Filter ................................................................................................ 24
4. POWER .................................................................................................................................. 31
4.1 Decoupling ....................................................................................................................... 31
4.2 Analog Power Conditioning .............................................................................................. 31
4.3 Pads ................................................................................................................................. 31
5. CLOCKING ............................................................................................................................. 32
6. CONTROL .............................................................................................................................. 33
6.1 Boot and Control Mode Overview .................................................................................... 33
6.2 Parallel Host Interface ...................................................................................................... 34
6.2.1 Intel Parallel Host Mode .................................................................................. 34
6.2.2 Motorola Parallel Host Mode ........................................................................... 36
6.3 SPI Serial Host Interface .................................................................................................. 36
6.3.1 SPI Write ......................................................................................................... 37
6.3.2 SPI Read ......................................................................................................... 37
Contacting Cirrus Logic Support
For a complete listing of Direct Sales, Distributor, and Sales Representative contacts, visit the Cirrus Logic web site at:
http://www.cirrus.com/corporate/contacts/
Dolby, Dolby Digital, and Pro Logic are registered trademarks of Dolby Laboratories Licensing Corporation.
Intel is a registered trademark of Intel Corporation.
Motorola is a registered trademark of Motorola, Inc.
I2C is a registered trademark of Philips Semiconductor.
All other names are trademarks, registered trademarks, or service marks of their respective companies.
Preliminary product information describes products which are in production, but for which full characterization data is not yet available. Advance product infor-
mation describes products which are in development and subject to development changes. Cirrus Logic, Inc. has made best efforts to ensure that the information
contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided “AS IS” without warranty of
any kind (express or implied). No responsibility is assumed by Cirrus Logic, Inc. for the use of this information, nor for infringements of patents or other rights
of third parties. This document is the property of Cirrus Logic, Inc. and implies no license under patents, copyrights, trademarks, or trade secrets. No part of
this publication may be copied, reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photographic, or
otherwise) without the prior written consent of Cirrus Logic, Inc. Items from any Cirrus Logic website or disk may be printed for use by the user. However, no
part of the printout or electronic files may be copied, reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical,
photographic, or otherwise) without the prior written consent of Cirrus Logic, Inc.Furthermore, no part of this publication may be used as a basis for manufacture
or sale of any items without the prior written consent of Cirrus Logic, Inc. The names of products of Cirrus Logic, Inc. or other vendors and suppliers appearing
in this document may be trademarks or service marks of their respective owners which may be registered in some jurisdictions. A list of Cirrus Logic, Inc. trade-
marks and service marks can be found at http://www.cirrus.com.
2 DS262F2


Part Number CS4928
Description Multi-Channel Digital Audio Decoders
Maker Cirrus Logic
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CS4928 Datasheet PDF






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