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LF2272QC20 PDF预览

LF2272QC20

更新时间： 2024-11-21 22:12:31
品牌 Logo 应用领域
逻辑 - LOGIC 转换器
页数 文件大小 规格书
9页 251K
描述
Colorspace Converter/Corrector (3 x 12-bits)

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中文翻译

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LF2272QC20 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Contact Manufacturer零件包装代码：QFP
包装说明：QFP,针数：120
Reach Compliance Code：compliantECCN代码：3A001.A.3
HTS代码：8542.39.00.01风险等级：5.91
其他特性：3 X 12 BIT DATA INPUT AND 3 X 10 BIT COEFFICIENT INPUT BUSES; 3 X 12 BIT DATA OUTPUT BUS边界扫描：NO
最大时钟频率：50 MHz外部数据总线宽度：12
JESD-30 代码：S-PQFP-G120JESD-609代码：e0
长度：28 mm低功率模式：NO
湿度敏感等级：3端子数量：120
最高工作温度：70 °C最低工作温度：
输出数据总线宽度：12封装主体材料：PLASTIC/EPOXY
封装代码：QFP封装形状：SQUARE
封装形式：FLATPACK峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：4.1 mm
最大压摆率：160 mA最大供电电压：5.25 V
最小供电电压：4.75 V标称供电电压：5 V
表面贴装：YES技术：CMOS
温度等级：COMMERCIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：0.8 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：28 mmuPs/uCs/外围集成电路类型：DSP PERIPHERAL, VIDEO IMAGING

LF2272QC20 数据手册

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LF2272  
Colorspace Converter/  
DEVICES INCORPORATED  
Corrector (3 x 12-bits)  
FEATURES  
DESCRIPTION  
The LF2272 is a high-speed digital  
colorspace converter/corrector  
an LF2272 at each format interface  
allows each stage of a system to  
❑ 50 MHz Data and Computation  
Rate  
consisting of three simultaneous 12-bit  
input and output channels for func-  
tionality up to 64 Giga (236) colors.  
Some of the applications the LF2272  
can be used for include phosphor  
colorimetry correction, image captur-  
ing and manipulation, composite color  
encoding/decoding, color matching,  
and composite color standards  
operate on the data while in the  
appropriate format.  
❑ Full Precision Internal Calculations  
with Output Rounding  
❑ On-board 10-bit Coefficient Storage  
All inputs and outputs, as well as all  
control lines, are registered on the  
rising edge of clock. The LF2272  
operates at clock rates up to 50 MHz  
over the full commercial temperature  
and supply voltage ranges. A nar-  
rower data path can be used to allow  
the LF2272 to work with many  
❑ Overflow Capability in Low  
Resolution Applications  
❑ Two’s Complement Input and  
Output Data Format  
❑ 3 Simultaneous 12-bit Channels  
(64 Giga Colors)  
conversion/transcoding.  
❑ Applications:  
The 3 x 3 matrix multiplier (triple dot  
product) allows users to easily per-  
form three-dimensional perspective  
translations or video format conver-  
sions at real-time video rates. By  
using the LF2272, conversions can be  
made from the RGB (color compo-  
nent) format to the YIQ (quadrature  
encoded chrominance) or YUV (color  
difference) formats and vice versa  
(YIQ or YUV to RGB). Differing signal  
formats in each stage of a system can  
be disregarded. For example, using  
different imaging applications.  
• Component Color Standards  
Translations (RGB, YIQ, YUV)  
• Color-Temperature Conversion  
• Image Capturing and Manipulation  
• Composite Color Encoding/  
Decoding  
• Three-Dimensional Perspective  
Translation  
DETAILS OF OPERATION  
All three input ports (A, B, C) and all  
three output ports (X, Y, Z) are  
utilized to implement a 3 x 3 matrix  
multiplication (triple dot product).  
Each truncated 12-bit output is the  
sum of all three input words multi-  
plied by the appropriate coefficients  
(Table 1). The pipeline latency is five  
clock cycles. Therefore, the sum of  
❑ Replaces TRW/Raytheon/Fairchild  
TMC2272  
❑ 120-pin PQFP  
LF2272 BLOCK DIAGRAM  
CLK  
2
CWEL1-0  
12  
12  
A11-0  
B11-0  
C11-0  
X
11-0  
11-0  
{
DATA  
INPUTS  
12  
12  
12  
12  
DATA  
OUTPUTS  
Y
{
{
Z
11-0  
10  
10  
10  
KA9-0  
KB9-0  
KC9-0  
9-MULTIPLIER  
ARRAY  
COEFFICIENT  
INPUTS  
Video Imaging Products  
08/16/2000–LDS.2272-I  
1
1234567...9

中文翻译

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