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ZR36011PQC

更新时间: 2024-01-10 20:29:15
品牌 Logo 应用领域
其他 - ETC /
页数 文件大小 规格书
16页 195K
描述
Peripheral IC

ZR36011PQC 技术参数

生命周期:Obsolete包装说明:,
Reach Compliance Code:unknown风险等级:5.84
Base Number Matches:1

ZR36011PQC 数据手册

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ZR36011  
PRELIMINARY  
DIGITAL COLOR SPACE CONVERTER  
FEATURES  
RGB to YCbCr and YCbCr to RGB conversions  
CyMaYe to YCbCr and YCbCr to CyMaYe conversions  
Bidirectional data buses for convenient interfacing  
Pixel rates up to 30 megapixels per second  
CCIR601 and full range data scaling options  
Bidirectional shift registers for sync pulse delay matching  
Compatible with Zoran’s ZR36050 JPEG Image  
Compression Processor and ZR36015 Raster to Block  
Converter  
Supports 4:2:2 decimation and interpolation modes, with  
100-Pin PQFP package  
Low power CMOS, 5V  
optional filtering  
Supports 4:1:1 decimation and interpolation with filtering  
APPLICATIONS  
Image processing  
Image capture and display  
Image compression  
GENERAL DESCRIPTION  
The ZR36011 Digital Color Space Convertor performs forward  
or inverse conversions between RGB and YCbCr color spaces.  
It is intended for use as a building block in systems that require  
this function. The direction of the conversion (RGB to YCbCr or  
YCbCr to RGB), and all other operating mode options, are deter-  
mined by the states of control inputs. The 24-bit RGB and YCbCr  
data buses are bidirectional, making for straightforward interfac-  
ing when the direction of signal flow is reversible, as in a video  
compression and expansion module. Conversion between  
CyMaYe (Cyan, Magenta, Yellow) and YCbCr color spaces is  
also supported. An additional conversion stage, between RGB  
and CyMaYe color spaces, is inserted in this case, thus redefin-  
ing the R, G, B pins as Cy, Ma, Ye.  
signal ranges conforming to CCIR Recommendation 601, the  
other for components occupying the full 8 bit numeric range.  
Decimation and interpolation of the color difference signals is  
supported. The available modes are 4:4:4 (undecimated), 4:2:2  
and 4:1:1. Filtering is optional in the 4:2:2 mode, and is always  
performed in the 4:1:1 mode. Other operating modes allow  
simple two-to-one compression to be performed by an additional  
decimation of the Y, Cb and Cr data, as well as the correspond-  
ing decompression by interpolation.  
A two-bit bidirectional shift register, with the same number of  
stages (eight) as the computation pipeline, is provided. This can  
be used as a delay line for synchronization signals, to keep them  
synchronized with the data.  
The color space conversion coefficients are fixed. One of two  
sets of coefficients can be selected: one suitable for component  
SIGN  
CCIR  
BYPASS  
SRGB  
2
Delay Line  
SYC  
2
R
Y
8
8
8
8
Color Space  
Conversion  
G
CB  
CR  
8
8
B
Bidirectional I/O  
Bidirectional I/O  
Rounding, Limiting  
Decimation  
Interpolation  
Filtering  
CMY  
MODE  
3
CLK  
RST  
CHS  
OE  
Control  
DIR  
Figure 1. ZR36011 Block Diagram  
ZORAN Corporation 1705 Wyatt Drive Santa Clara, CA 95054 (408) 986-1314 FAX (408) 986-1240  
September 1993  
This document was created with FrameMaker 4.0.4  

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