Datasheet > LF2272QC25

LF2272QC25

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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数据手册

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LF2272QC25 数据手册

LF2272

DEVICES INCORPORATED

Colorspace Converter/

LF2272

Corrector (3 x 12-bits)

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

CWEL1-0

A11-0

B11-0

C11-0

11-0

{

DATA

INPUTS

DATA

OUTPUTS

{

11-0

KA9-0

KB9-0

KC9-0

9-MULTIPLIER

ARRAY

COEFFICIENT

INPUTS

Video Imaging Products

08/16/2000–LDS.2272-I

12 3 4 5 6 7...9

中文翻译

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与LF2272QC25相关器件

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LF2272QC33	ETC	获取价格	Image Processor
LF227RW	MPD	获取价格	Miniature SMT, 2W Wide Input Range DC/DC Converters
LF-230	NEC	获取价格	Noise Filters
LF2301	LOGIC	获取价格	Image Resampling Sequencer
LF2301GC66	LOGIC	获取价格	Video Imager, 12-Bit, CMOS, CPGA68, CAVITY-UP, CERAMIC, PGA-68
LF2301GM30	LOGIC	获取价格	Video Imager, 12-Bit, CMOS, CPGA68, CAVITY-UP, CERAMIC, PGA-68
LF2301GM55	LOGIC	获取价格	Video Imager, 12-Bit, CMOS, CPGA68, CAVITY-UP, CERAMIC, PGA-68
LF2301GM66	ETC	获取价格	Video Sequencer
LF2301GMB30	LOGIC	获取价格	Video Imager, 12-Bit, CMOS, CPGA68, CAVITY-UP, CERAMIC, PGA-68
LF2301GMB66	LOGIC	获取价格	Video Imager, 12-Bit, CMOS, CPGA68, CAVITY-UP, CERAMIC, PGA-68

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