参数资料
型号: LF43168JC30
厂商: LOGIC DEVICES INC
元件分类: 数字信号处理外设
英文描述: Digital Filter
中文描述: 10-BIT, DSP-DIGITAL FILTER, PQCC84
封装: PLASTIC, LCC-84
文件页数: 1/16页
文件大小: 184K
代理商: LF43168JC30
DEVICES INCORPORATED
Video Imaging Products
1
LF43168
Dual 8-Tap FIR Filter
Dual 8-Tap FIR Filter
03/28/2000–LDS.43168-H
K
66 MHz Data and Computation Rate
K
Two Independent 8-Tap or Single
16-Tap FIR Filters
K
10-bit Data and Coefficient Inputs
K
32 Programmable Coefficient Sets
K
Supports Interleaved Coefficient Sets
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User Programmable Decimation up
to 16:1
K
Maximum of 256 FIR Filter Taps,
16 x 16 2-D Kernels, or 10 x 20-bit
Data and Coefficients
K
Replaces Harris HSP43168
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Package Styles Available:
84-pin Plastic LCC, J-Lead
100-pin Plastic Quad Flatpack
FEATURES
DESCRIPTION
DEVICES INCORPORATED
The
LF43168
is a high-speed dual FIR
filter capable of filtering data at real-
time video rates. The device contains
two FIR filters which may be used as
two separate filters or cascaded to
form one filter. The input and coeffi-
cient data are both 10-bits and can be
in unsigned, two’s complement, or
mixed mode format.
The filter architecture is optimized for
symmetric coefficient sets. When
symmetric coefficient sets are used,
each filter can be configured as an 8-tap
FIR filter. If the two filters are cas-
caded, a 16-tap FIR filter can be
implemented. When asymmetric
coefficient sets are used, each filter is
configured as a 4-tap FIR filter. If both
filters are cascaded, an 8-tap filter can
be implemented. The LF43168 can
decimate the output data by as much
as 16:1. When the device is pro-
grammed to decimate, the number of
clock cycles available to calculate filter
taps increases. When configured for
16:1 decimation, each filter can be
configured as a 128-tap FIR filter (if
symmetric coefficient sets are used).
By cascading these two filters, the
device can be configured as a 256-tap
FIR filter.
There is on-chip storage for 32
different sets of coefficients. Each set
consists of eight coefficients. Access
to more than one coefficient set
facilitates adaptive filtering opera-
tions. The 28-bit filter output can be
rounded from 8 to 19 bits.
LF43168 B
LOCK
D
IAGRAM
CIN
9-0
A
8-0
WR
CONTROL
10
9
CSEL
4-0
5
COEFFICIENT
BANK A
COEFFICIENT
BANK B
FILTER
CELL A
FILTER
CELL B
M
INA
9-0
INB
9-0
/
OUT
8-0
MUX/ADDER
9
19
M
OEL
OEH
OUT
27-9
10
10
9
相关PDF资料
PDF描述
LF43168QC15 Dual 8-Tap FIR Filter
LF43168QC22 Dual 8-Tap FIR Filter
LF43168QC30 Dual 8-Tap FIR Filter
LF43891JC40 9 x 9-bit Digital Filter
LF43891 9 x 9-bit Digital Filter
相关代理商/技术参数
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LF43168JI15 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digital Filter
LF43168JI22 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digital Filter
LF43168JI30 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digital Filter
LF43168QC15 制造商:LOGIC 制造商全称:LOGIC 功能描述:Dual 8-Tap FIR Filter
LF43168QC22 制造商:LOGIC 制造商全称:LOGIC 功能描述:Dual 8-Tap FIR Filter