Datasheet > LF2247

LF2247

更新时间： 2024-11-21 22:31:23

品牌	Logo	应用领域
逻辑 - LOGIC		过滤器
页数	文件大小	规格书
10页	261K
描述
Image Filter with Coefficient RAM

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中文翻译

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数据手册

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LF2247 数据手册

LF2247

DEVICES INCORPORATED

Image Filter with Coefficient RAM

LF2247

Image Filter with Coefficient RAM

DEVICES INCORPORATED

FEATURES

DESCRIPTION

The LF2247 consists of an array of four an asynchronous three-state output

❑ 66 MHz Data Input and Compu-

tation Rate

11 x 10-bit registered multipliers

followed by a summer and a 25-bit

accumulator. The LF2247 provides a

enable control to simplify the design

of complex systems. The pipeline

latency for all inputs is five clock

❑ Four 11 x 10-bit Multipliers with

Individual Data and Coefficient

Inputs and a 25-bit Accumulator

coefficient register file containing four cycles.

32 x 11-bit registers which are capable

❑ Four 32 x 11-bit Serially Loadable

A 25-bit accumulator path allows

cumulative word growth which may

be internally rounded to 16 bits.

Output data is updated every clock

cycle and may be held under user

control. The data inputs/outputs and

control inputs are registered on the

rising edge of CLK. The Serial Data In

signal, SDIN, is registered on the

of storing 32 different sets of filter

coefficients for the multiplier array.

All multiplier data inputs are user

accessible and can be updated every

clock cycle with either fractional or

integer two’s complement data. The

pipelined architecture has fully

Coefficient Registers

❑ Fractional or Integer Two’s

Complement Operands

❑ Package Styles Available:

• 84-pinPLCC, J-Lead

• 100-pin PQFP

registered input and output ports and

LF2247 BLOCK DIAGRAM

ENBA

COEFFICIENT REGISTER FILE

A4-0

SDIN

SEN

Coefficient

(32 x 11-bit)

Coefficient

(32 x 11-bit)

Coefficient

(32 x 11-bit)

Coefficient

(32 x 11-bit)

SEN

SCLK

D19-0

ENB

D29-0

ENB

D39-0

ENB

D49-0

ENB4

ACC

OCEN

FSEL

OEN

CLK

TO ALL REGISTERS

(EXCEPT COEFFICIENT REGISTERS)

15-0

Video Imaging Products

08/16/2000–LDS.2247-H

12 3 4 5 6 7...10

中文翻译

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与LF2247相关器件

型号	品牌	获取价格	描述	数据表
LF2247GC25	ETC	获取价格	Digital Filter
LF2247GC33	LOGIC	获取价格	Digital Filter, 10-Bit, CMOS, CPGA84, CERAMIC, PGA-84
LF2247GM25	ETC	获取价格	Digital Filter
LF2247GM33	ETC	获取价格	Digital Filter
LF2247GMB25	LOGIC	获取价格	Digital Filter, 10-Bit, CMOS, CPGA84, CERAMIC, PGA-84
LF2247GMB33	LOGIC	获取价格	Digital Filter, 10-Bit, CMOS, CPGA84, CERAMIC, PGA-84
LF2247JC15	LOGIC	获取价格	Digital Filter
LF2247JC25	LOGIC	获取价格	Digital Filter, 10-Bit, CMOS, PQCC84, PLASTIC, LCC-84
LF2247JC33	ETC	获取价格	Digital Filter
LF2247QC15	LOGIC	获取价格	Image Filter with Coefficient RAM