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参数资料
| 型号： | LF2247QC25 |
| 厂商： | LOGIC DEVICES INC |
| 元件分类： | 数字信号处理外设 |
| 英文描述： | Image Filter with Coefficient RAM |
| 中文描述： | 10-BIT, DSP-DIGITAL FILTER, PQFP100 |
| 封装： | PLASTIC, QFP-100 |
| 文件页数： | 1/10页 |
| 文件大小： | 259K |
| 代理商： | LF2247QC25 |
DEVICES INCORPORATED
Video Imaging Products
1
LF2247
Image Filter with Coefficient RAM
Image Filter with Coefficient RAM
1
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10
11
08/16/2000–LDS.2247-H
K
66 MHz Data Input and Compu-
tation Rate
K
Four 11 x 10-bit Multipliers with
Individual Data and Coefficient
Inputs and a 25-bit Accumulator
K
Four 32 x 11-bit Serially Loadable
Coefficient Registers
K
Fractional or Integer Two’s
Complement Operands
K
Package Styles Available:
84-pin PLCC, J-Lead
100-pin PQFP
FEATURES
DESCRIPTION
DEVICES INCORPORATED
The
LF2247
consists of an array of four
11 x 10-bit registered multipliers
followed by a summer and a 25-bit
accumulator. The LF2247 provides a
coefficient register file containing four
32 x 11-bit registers which are capable
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
registered input and output ports and
an asynchronous three-state output
enable control to simplify the design
of complex systems. The pipeline
latency for all inputs is five clock
cycles.
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
LF2247 B
LOCK
D
IAGRAM
D1
9-0
10
11
ENB
1
D2
9-0
10
11
ENB
2
22
D3
9-0
10
11
ENB
3
D4
9-0
10
11
ENB
4
22
MS
LS
S
15-0
ACC
FSEL
OEN
CLK
TO ALL REGISTERS
(EXCEPT COEFFICIENT REGISTERS)
25
OCEN
Coefficient
Register 1
(32 x 11-bit)
Coefficient
Register 2
(32 x 11-bit)
Coefficient
Register 3
(32 x 11-bit)
Coefficient
Register 4
(32 x 11-bit)
A
4-0
SEN
SCLK
SDIN
SCLK
5
ENBA
16
COEFFICIENT REGISTER FILE
SEN
SCLK
SEN
SCLK
SEN
相关PDF资料 |
PDF描述 |
|---|---|
| LF2250 | 12 x 10-bit Matrix Multiplier |
| LF2250QC25 | 12 x 10-bit Matrix Multiplier |
| LF2250QC20 | 12 x 10-bit Matrix Multiplier |
| LF2301 | Image Resampling Sequencer |
| LF2301JC25 | Image Resampling Sequencer |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LF2247QC33 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digital Filter |
| LF2249 | 制造商:LOGIC 制造商全称:LOGIC 功能描述:12 x 12-bit Digital Mixer |
| LF2249GC-25 | 制造商:LOGIC 功能描述: |
| LF2249GC-33 | 制造商:LOGIC 功能描述: |
| LF2249GC40 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digital Mixer |
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