參數資料
型號: LF3330
廠商: Logic Devices Incorporated
英文描述: Vertical Digital Image Filter(垂直數字圖像濾波器)
中文描述: 垂直數字圖像過濾器(垂直數字圖像濾波器)
文件頁數: 1/15頁
文件大?。?/td> 111K
代理商: LF3330
DEVICES INCORPORATED
Video Imaging Products
1
LF3330
Vertical Digital Image Filter
Vertical Digital Image Filter
08/16/2000–LDS.3330-K
K
83 MHz Data Rate
K
12-bit Data and Coefficients
K
On-board Memory for 256
Coefficient Sets
K
LF Interface
TM
Allows All 256
Coefficient Sets to be Updated
Within Vertical Blanking
K
Selectable 16-bit Data Output with
User-Defined Rounding and
Limiting
K
Seven 3K x 12-bit, Programmable
Two-Mode Line Buffers
K
Separate Input Port for Odd and
Even Field Filtering
K
8 Filter Taps
K
Cascadable for More Filter Taps
K
Supports Interleaved Data Streams
K
3.3 Volt Power Supply
K
5 Volt Tolerant I/ O
K
144 Lead PQFP
FEATURES
DESCRIPTION
The
LF3330
filters digital images in
the vertical dimension at real-time
video rates. The input and coefficient
data are both 12 bits and in two’s
complement format. The output is
also in two’s complement format and
may be rounded to 16 bits.
The filter is an 8-tap FIR filter with all
required line buffers contained on-
chip. The line buffers can store video
lines with lengths from 4 to 3076
pixels.
Multiple LF3330s can be cascaded
together to create larger vertical
filters.
Due to the length of the line buffers,
interleaved data can be fed directly
into the device and filtered without
separating the data into individual
data streams. The number of inter-
leaved data sets that the device can
handle is limited only by the length of
the on-chip line buffers. If the inter-
leaved video line has 3076 data values
or less, the filter can handle it.
The LF3330 contains enough on-board
memory to store 256 coefficient sets.
The LF Interface
TM
allows all 256
coefficient sets to be updated within
vertical blanking.
Selectable 16-bit data output with
user-defined rounding and limiting
minimizes the constraints put on
coefficient sets for various filter
implementations.
LF3330 B
LOCK
D
IAGRAM
DEVICES INCORPORATED
DIN
11-0
2
3K LINE BUFFER
12
3K LINE BUFFER
3K LINE BUFFER
3K LINE BUFFER
3K LINE BUFFER
3K LINE BUFFER
3K LINE BUFFER
ROUND
SELECT
LIMIT
CIRCUITRY
OED
16
DOUT
15-0
12
COUT
11-0
32
VB
11-0
12
OEC
相關PDF資料
PDF描述
LF3338 8-Bit Vertical Digital Image Filter(8位垂直數字圖像濾波器)
LF3338QC12 8-Bit Vertical Digital Image Filter
LF3347 High-Speed Image Filter with Coefficient RAM(高速圖像濾波器(帶系數RAM))
LF3347QC12 CAP 1.0UF 63V METAL POLY
LF3347QC15 High-Speed Image Filter with Coefficient RAM
相關代理商/技術參數
參數描述
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LF3330FMB15 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Filter
LF3330FMB18 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Filter
LF3330FMB25 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Filter
LF3330QC12 制造商:LOGIC 制造商全稱:LOGIC 功能描述:Vertical Digital Image Filter