Datasheet > LF2250

LF2250

更新时间： 2024-11-21 22:31:23

品牌	Logo	应用领域
逻辑 - LOGIC		/
页数	文件大小	规格书
15页	370K
描述
12 x 10-bit Matrix Multiplier

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中文翻译

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LF2250 数据手册

LF2250

DEVICES INCORPORATED

FEATURES

12 x 10-bit Matrix Multiplier

LF2250

12 x 10-bit Matrix Multiplier

DESCRIPTION

selects the necessary internal bus

structure and inserts the appropriate

data path delay elements. In addition,

a 16-bit cascade input port allows for

the creation of larger filters without a

reduction in throughput.

The LF2250 is a high-speed matrix

multiplier consisting of an array of

nine 12 x 10-bit multipliers. Internal

summing adders are also included to

provide the configurations needed to

implement matrix multiplications,

cascadable FIR filters, and pixel

convolvers.

❑ 50 MHz Data and Computation

Rate

❑ Nine Multiplier Array with 12-bit

Data and 10-bit Coefficient Inputs

❑ Separate 16-bit Cascade Input and

Output Ports

❑ On-board Coefficient Storage

❑ Four User-Selectable Filtering and

Transformation Functions:

Real-time video image filtering using

the convolver modes of the LF2250 can

provide edge detection, texture

enhancement, and detail smoothing.

Both pixel convolver configurations,

The 3 x 3 matrix multiplier (triple dot

product) configuration of the LF2250

allows users to easily perform three-

• 3 x 3 Matrix Multiplier

• Cascadable 9-Tap FIR Filter

• Cascadable 3 x 3 Convolver

• Cascadable 4 x 2 Convolver

dimensional perspective translations or 3 x 3 and 4 x 2, deliver high-speed data

video format conversions at real-time

video rates. By using the LF2250 in

this configuration, conversions can be

made from the RGB (color component)

manipulation in a single chip solution.

By using the 16-bit cascade input port

to cascade two devices, cubic convolu-

tions (4 x 4-pixel) can be easily accom-

❑ Replaces TRW/Raytheon/

Fairchild TMC2250

❑ 120-pin PQFP

format to the YIQ (quadrature encoded modated with no decrease in through-

chrominance) or YUV (color differ-

ence) formats and vice versa (YIQ or

YUV to RGB).

put rates.

All inputs and outputs, as well as all

control lines, are registered on the

rising edge of clock. The LF2250

operates at clock rates up to 50 MHz

over the full commercial temperature

and supply voltage ranges.

In addition to color space conversions,

the LF2250 offers a range of selectable

configurations designed for filtering

applications. When configured as a

9-tap FIR filter, the LF2250 automatically

LF2250 BLOCK DIAGRAM

CLK

DATA

OUTPUTS

CASCADE

PORTS

NAME

MODE1-0

CWE1-0

11-0

11-8

7-4

CASIN15-4

CASIN3-0

XC11-0

YC11-8

A11-0

B11-0

C11-0

DATA

Y7-4

INPUTS

{

3-0

CASOUT3-0

CASOUT15-4

YC3-0

11-0

ZC11-0

KA9-0

KB9-0

KC9-0

9-MULTIPLIER

ARRAY

COEFFICIENT

INPUTS

Video Imaging Products

08/16/2000–LDS.2250-L

12 3 4 5 6 7...15

中文翻译

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LF2250GC33	ETC	获取价格	Video Convolver
LF2250GM25	ETC	获取价格	Video Convolver
LF2250GM33	ETC	获取价格	Video Convolver
LF2250GMB25	ETC	获取价格	Video Convolver
LF2250GMB33	ETC	获取价格	Video Convolver
LF2250MM25	ETC	获取价格	Video Convolver
LF2250MM33	ETC	获取价格	Video Convolver
LF2250MMB25	ETC	获取价格	Video Convolver
LF2250MMB33	ETC	获取价格	Video Convolver
LF2250QC20	LOGIC	获取价格	12 x 10-bit Matrix Multiplier

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