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參數資料
| 型號： | ZR38650 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | PROGRAMMABLE DIGITAL AUDIO PROCESSOR |
| 中文描述： | 可編程數字音頻處理器 |
| 文件頁數： | 2/66頁 |
| 文件大?。?/td> | 441K |
| 代理商： | ZR38650 |
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ZR38650
GENERAL DESCRIPTION
The Zoran ZR38650 is the latest full-function digital audio pro-
cessing member of the ZR38000 digital signal processor
product line. It is especially configured with peripherals, I/O
capability and software for digital audio. Today, quality digital
audio starts with a primary decoding function and adds appropri-
ate data stream protocols and interfaces with I/O configurations
to match the application. The ZR38650 has these primary
decode and protocol software functions and yet has pro-
gram/data memory and processing cycles left for additional
product-distinguishing features. The ZR38650 also has the nec-
essary flexibility in system I/O and hardware configuration.
The ZR38650 is instruction-set compatible with the earlier
ZR38600, but has a higher 50-MIPS processing rate. This gives
the new faster 96-kHz sample rate S/PDIF decoding and
increased processing cycles for additional functions. Larger
internal program and data RAMs and ROM along with wide
external memories accommodate today’s rapidly changing
needs for large complex algorithms. Other new hardware
features are a programmable timer, a Z2C serial host interface
and more support for the 24-bit I/O data formats.
Functions
AC-3 and MPEG with variations are the primary decoding func-
tions in use today. The ZR38650 has these and their associated
test function with the required set-up, operation and system
functions to make them usable in an end-user product. In addi-
tion, an ever increasing number of SiliconSoftwarefunctions can
add special enhancing and differentiating features to products.
Primary Decoding and Test Functions
AC-3
The figure shows the simultaneous S/PDIF input and 5.1
channel DAC (Digital-to-Analog Converter) outputs of this
primary digital audio function, the six-channel AC-3 decoder.
Or with four channels of Pro Logic output in either of two DAC
forms: four channels directly or to an analog Pro Logic decoder.
PCM + Pro Logic
With two-channel PCM inputs the choice of functions is four-
channel Pro Logic decoding or two-channel stereo mixing,
including upmixing from only one input channel to two.
MPEG
The MPEG1 decoder accepts either MPEG1 or MPEG2 input
streams and produces either Pro Logic DAC outputs or two-
channel stereo in DAC form.
Pink Noise
A six-channel pink pseudo-random noise generator function is
included for user testing of speaker balance in their listening
space. Individual speakers can be enabled in any combination.
SiliconSoftware Functions
SiliconSoftware is a group of additional functions for the
ZR38650 provided by Zoran or third-party suppliers that can add
special features now or provide new functions in the future.
3-D Audio
Currently there are six providers of 3-D audio which gives the
effect of a three-dimensional sound field with only two speakers.
These functions are Aureal A3D, Dolby Virtual Surround,
Harman VMAx, QSound QSurround, Spatializer N-2-2 and
Six-Channel
AC-3 Decoder
Left
Right
Left Surround
Right Surround
Center
Subwoofer
S/PDIF
Six-Channel
AC-3 Stream
Two-Channel
AC-3
Decoder
Pro Logic
Decoder
Left
Right
Center
Surround
S/PDIF
Six- or Two-
Channel AC-3
Stream
Lt (Pro Logic)
Rt (Pro Logic)
S/PDIF
Six- or Two-
Channel AC-3
Stream
AC-3
Decoder
Two-Channel
PCM Input
Pro Logic
Decoder
Left
Right
Center
Surround
S/PDIF
Left
Right
S/PDIF
One- or Two-
Channel PCM
PCM Mixer
Two-Channel
MPEG1
Decoder
Pro Logic
Decoder
Left
Right
Center
Surround
S/PDIF
Two-Channel
MPEG1/MPEG2
Stream
Left
Right
S/PDIF
Two-Channel
MPEG1/MPEG2
Stream
MPEG1
Decoder
Pink Noise
Generator
Left
Right
Left Surround
Right Surround
Center
Subwoofer
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相關代理商/技術參數 |
參數描述 |
|---|---|
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