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參數(shù)資料
| 型號： | AT76C2XX |
| 廠商： | Atmel Corp. |
| 英文描述： | A High-Performance Dolby Digital Decoder(基于24位DSP的高性能低噪聲數(shù)字譯碼器) |
| 中文描述： | 一種高性能杜比數(shù)字解碼器（基于24位數(shù)字信號處理器的高性能低噪聲數(shù)字譯碼器） |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 19K |
| 代理商： | AT76C2XX |
1
Features
5.1-channel Dolby Digital (AC-3)
(1)
Supports all Dolby Digital Configurations
– Accepts Datastreams Encoded at Up to 640K bps
Supports 8 Audio Channels
Decodes Dolby Digital, DTS, MPEG-2, and AAC
Provides Extra MIPS for User-defined Post-processing Functions
All Audio Input/output Provides up to 24-bit Precision at Sample Rates of 32, 44.1, 48,
and 96 kHz
Internal IEC 958 Receiver (AES/EBU, S/PDIF)
Supports Liner PCM Streams up to 96 kHz
Auto-detection of Compressed Audio Formats
IEC 958 Single-ended (S/PDIF) Transmitter for Audio Data and Dolby Digital Bitstreams
Programmable Audio Data Output Interface Allows Compatibility with Many D/A
Converters
Provides Dolby Bass Redirection
Programmable Center, Surround and Front Channel Delays
Pink Noise Generation for Calibration of all Channels
3.3-Volt Core and I/O
64-pin PQFP Package
Description
The AT76C2XX is a high-performance, low-cost, solution for the full decoding of
Dolby
Digital (AC-3
) audio streams. The AT76C2XX, based on Atmel’s high-perfor-
mance 24-bit DSP, contains all the necessary interfaces to design stand-alone Dolby
Digital receiver/decoder systems targeted for home theater products. The AT76C2XX
accepts data from an IEC 958-compatible interface (AES/EBU or S/PDIF), or directly
from an A/D converter, and generates up to 8 channels of audio. These channels can
provide the one sub-woofer and five high-quality full-bandwidth channels (5.1) that are
fully compliant with all the functions of the 5.1 channel Dolby Digital standard
(2)
. All
program code is also integrated inside the chip, therefore eliminating the need for
external SRAM, and minimizing system cost.
Notes:
1.
This implementation has not yet completed the evaluation process by Dolby Labo-
ratories and is offered subject to obtaining approval.
DTS is a registered trademark of Digital Theatre Systems.
2.
CLOCK
CLOCKOUT
LFT
LFT2
RESET
TEST
NMI
IRQA
IRQB
GPI
GPO
SDA
SCL
FSYNC
SCK
SDATA
MCK
RXP
TXP
MCLK
ADOCLK
ADOSNC
ADO[4:1]
EME
ERD
EWR
EAB[15:0]
EDB[7:0]
AT76C2XX
A High-
Performance
Dolby Digital
(AC-3
) Decoder
AT76C2XX
Summary
A complete datasheet is
available under NDA.
Please contact:
Richard Bisset
Product Marketing Director
Tel: (919) 462-6542
Fax: (919) 462-0300
e-mail: rbisset@atmel.com
Rev. 1133AS–09/98
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| AT76C504A | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:802.11b Baseband and Media Access Controller (MAC) for PCMCIA Bus |
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