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參數(shù)資料
| 型號： | ZR38650 |
| 廠商： | Zoran Corporation |
| 英文描述： | Full-Function, High-Performance Programmable Digital Audio Signal Processor(全功能，高性能可編程數(shù)字音頻信號處理器) |
| 中文描述： | 全功能，高性能的可編程數(shù)字音頻信號處理器（全功能，高性能可編程數(shù)字音頻信號處理器） |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 76K |
| 代理商： | ZR38650 |
Solutions
on a
Chip
PROGRAMMABLE DIGITAL
AUDIO PROCESSOR
ZR38650
Product Brief
Tel 408.919.4 1 1 1
Fax 408.919.4122
www.zoran.com
12/00-LD1500
Benefits Overview
The Zoran
(ZR38650) is a full-function, high-performance programmable digital
audio signal processor. It is capable of real-time, single-chip decoding of Dolby
Digital and MPEG-2 digital surround algorithms with its standard ROM and
SiliconSoftware
functions. It is also today’s best digital audio platform for
meeting tomorrow’s constantly evolving digital audio algorithm requirements.
Using the proven ZR38000 architecture, it is the fourth generation audio processor
made by Zoran.
Due to its programmable high-performance and high level of integration, the
ZR38650 is unusually flexible in meeting a wide range of system requirements at
the lowest possible system cost. At the low end, it can provide standard fixed
decoding functions with only a DAC and an optical interface for the S/PDIF input in
addition to the oscillator crystal. At the high end, it can provide eight channels of
output, analog input, long-delay memories, custom operating features, and the abil-
ity to be upgraded with downloaded SiliconSoftware product enhancements. Yet, all
of this flexibility comes without design complexity. Highly configurable standard
functions with a simple command structure minimize software development, while a
full set of development tools are available for the highly-custom product developer.
The ZR38650 is suitable primarily for audio applications such as Audio/Visual
home theater receivers, Digital Audio Broadcast (DAB), 3-D audio, six-channel
speaker systems, and Karaoke processors; video applications like SDTV and
HDTV stereo television receivers, digital cable and satellite TV set-top boxes; and
multi-media PC applications and Digital Video Disk (DVD) players.
Key Features
Full-Function Digital Audio Processor Hardware
- 50 MIPS performance with multi-operation instructions
- Large internal RAMs/ROM plus low-cost external memory
- Wide selection of on-chip digital audio peripherals
- Flexible interface for host or no-host operation
Standard Software Functions in ROM
- Dolby Digital, 5.1 channel and 2 channel decoding up to 640 Kbits/second
- Dolby Pro Logic encoding and decoding
- MPEG-1 and MPEG-2 two-channel decoding with MPEG-2 PES stream
parsing, PTS decoding, and SCR handling
Downloadable SiliconSoftware Functions
- Tomorrow’s ever-changing standards plus today’s:
Aureal A3D, Dolby Virtual Surround, Harman VMAx,
QSound QSurround, Spatializer N-2-2, Home THX,
SRS TruSurround, Music Modes, Bass Management
Flexible Input/Output
- Serial and/or parallel data stream I/O
- Serial SPI, serial Z2C or 8-bit parallel host interface
- 3 serial input data ports and 4 serial data output ports
- Formatted S/PDIF receiver with up to 96 kHz sample rate
- Sample rates: 32 kHz, 44.1 kHz, 48 kHz, or 96 kHz
- Formatted S/PDIF Dolby Digital and MPEG transmitter output
Low System Cost
- Host-less operation without glue chips
- Separate internal PLLs for DSP core and audio I/O
- No external RAM required for 5.1 Dolby Digital/MPEG-2
- Wait-state generation for low-cost external memory
- 144-pin Plastic Thin Quad Flat Pack (TQFP) package
- 3.3 V supply with 5 V compatible I/O for low power
Zoran Corporation
3112 Scott Boulevard
Santa Clara, CA 95054-3317
ZR38650-PB-3.0
S/PDIF
Optical
Interface
S/PDIF Input
ZR38650
General Purpose Control I/O
Host
Processor
(Optional)
SPI or Z2C Serial Interface
DAC
DAC
DAC
DAC
(Optional)
XTAL
Left
Right
Left Surround
Right Surround
Center
Subwoofer
Left Center
Right Center
Figure 1. A typical Low-Parts-Count ZR38650 System
Encoded Data Input
Decoded Audio Outputs
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