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PM-36 PDF预览

PM-36

更新时间: 2024-02-18 01:14:35
品牌 Logo 应用领域
卓然 - ZORAN /
页数 文件大小 规格书
2页 67K
描述
JPEG Image Processor

PM-36 技术参数

生命周期:Transferred包装说明:,
Reach Compliance Code:unknown风险等级:5.63
Base Number Matches:1

PM-36 数据手册

 浏览型号PM-36的Datasheet PDF文件第2页 
Driving the Digital Lifestyle  
PM-36  
JPEG Image Processor  
Imaging  
Software  
Processors  
Quatro SOCs  
Solutions  
Zoran Corporation  
1390 Kifer Road  
Sunnyvale, CA 94086-5305  
www.zoran.com  
Product Brief  
The PM-36 is a fixed-function Codec device that delivers high  
speed JPEG compression/decompression of color and  
grayscale image data. An ISO standard for lossy image  
compression, JPEG can reduce the size of image data without  
a noticeable difference in image quality. This improves system  
performance of peripheral-based applications by reducing  
bandwidth and storage requirements. The PM-36 is ideal for  
high resolution imaging applications such as copiers, scanners,  
printers and multifunction peripherals, particularly in networked  
environments.  
Benefits  
Key Features  
High Performance–JPEG Imaging Codec–Delivers sustained  
• Conforms to ISO IS 10918-1/10918-2 JPEG baseline for grayscale  
and color  
data rates of up to 110 MB per second  
• 80 MHz clock speed for sustained 80 MB/second throughput  
(Raster or Block mode operations)  
Efficient Coding–four loadable Q-Tables and two loadable  
Huffman table pairs  
• 110 MHz clock speed for sustained 110 MB/second throughput  
(Block mode operations only)  
Highly Integrated–Internal Phase-Locked Loop (PLL)  
3.3 Volt supply–5 Volt Tolerant I/O  
• 3.3 Volt power supply  
• Four selectable quantization tables  
• Two pairs of loadable Huffman tables  
• Programmable code rate control  
Standard Compliant–ISO IS 10918-1/10918-2  
• Programmable code size control (single pass)  
• Raster and block data formats  
• Internal 256-byte buffers on input and output ports  
• I/O modes supporting transfer rates up to 40 MHz (280 MB/per  
second)  
• Internal Phase-Locked Loop (PLL)  
• Horizontal 2:1 subsampling and upsampling support for 4:2:2  
formats using 2 or 3 point filters (Raster mode operations only)  
Description  
High Throughput  
Efficient Coding  
The PM-36 features several advanced JPEG coding techniques for  
improved efficiency. Four loadable Q-tables are available for  
dynamic quantization control on a block-by-block basis. In addition,  
The PM-36 contains two loadable Huffman table pairs, which  
improves coding efficiency by allowing the system to use different  
encoding factors with out reprogramming the device.  
The PM-36 can sustain data rates of 80 or 110 MB per second to  
support real time operations. In addition, it implements two advanced  
features that maximize throughput and system performance:  
• Programmable code rate control–This optional mode limits the  
encoded output data bandwidth to a predefined rate by  
dynamically reducing the quantization accuracy on a block-by-  
block basis, as required. This assures maximum throughput in  
high-speed peripherals.  
Highly Integrated  
The PM-36 features an internal Phase-Locked Loop (PLL) that  
enables the chip to generate its main internal clock frequency from a  
lower-frequency signal. This reduces emissions and simplifies board  
design, particularly in systems using low-power CPUs and no  
external SRAM.  
• Programmable code size control–This mode allows definition of an  
upper limit for the size of the encoded output file so that it does  
not exceed a fixed memory buffer size. This is achieved in a single  
pass of the data, with no degradation in performance.  
01/06-MMCP  
Imaging-PM-36-PB-1.2  

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