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參數資料
| 型號： | LF3320QC12 |
| 廠商： | LOGIC DEVICES INC |
| 元件分類： | 數字信號處理外設 |
| 英文描述： | Horizontal Digital Image Filter |
| 中文描述： | 12-BIT, DSP-DIGITAL FILTER, PQFP144 |
| 封裝： | PLASTIC, QFP-144 |
| 文件頁數： | 1/24頁 |
| 文件大小： | 575K |
| 代理商： | LF3320QC12 |
DEVICES INCORPORATED
Video Imaging Products
2-1
LF3320
Horizontal Digital Image Filter
Horizontal Digital Image Filter
08/16/2000–LDS.3320-N
FEATURES
DESCRIPTION
The
LF3320
filters digital images in the
horizontal 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 LF3320 is designed to take
advantage of symmetric coefficient
sets. When symmetric coefficient sets
are used, the device can be configured
as a single 32-tap FIR filter or as two
separate 16-tap FIR filters.
When asymmetric coefficient sets are
used, the device can be configured as a
single 16-tap FIR filter or as two
separate 8-tap FIR filters. Multiple
LF3320s can be cascaded to create
larger filters.
Interleave/ Decimation Registers (I/ D
Registers) allow interleaved data to be
fed directly into the device and filtered
without separating the data into
individual data streams.
The LF3320 can handle a maximum of
sixteen data sets interleaved together.
The I/ D Registers and on-chip accu-
mulators facilitate using decimation to
increase the number of filter taps.
Decimation of up to 16:1 is supported.
The LF3320 contains enough on-board
memory to store 256 coefficient sets.
Two separate LF Interfaces
TM
allow all
256 coefficient sets to be updated within
vertical blanking.
DEVICES INCORPORATED
LF3320 B
LOCK
D
IAGRAM
83 MHz Data Rate
12-bit Data or Coefficients (Expand-
able to 24-bit)
32-Tap FIR Filter, Cascadable for
More Filter Taps
Over 49 K-bits of on-board Memory
LF Interface
TM
Allows All 256
Coefficient Sets to be Updated
Within Vertical Blanking
Various Operating Modes: Dual
Filter, Single Filter, Double Wide
Data or Coefficient, Matrix Multipli-
cation, and Accumulator Access.
Selectable 16-bit Data Output with
User-Defined Rounding and Limiting
Supports Interleaved Data Streams
Supports Decimation up to 16:1 for
Increasing Number of Filter Taps
3.3 Volt Supply
144 Lead PQFP
256
COEFFICIENT
SET
STORAGE
16-TAP
FILTER A
16-TAP
FILTER B
DIN
11-0
12
256
COEFFICIENT
SET
STORAGE
ROUT
11-0
12
12
12
ROUND
SELECT
LIMIT
CIRCUITRY
OED
CAA
7-0
CENA
8
CAB
7-0
CENB
8
COUT
11-0
RIN
11-0
DOUT
15-0
CFA
11-0
12
LDA
CFB
11-0
LDB
16
INTERLEAVE / DECIMATION
REGISTERS
12
CLK
PAUSEA
PAUSEB
相關PDF資料 |
PDF描述 |
|---|---|
| LF3320QC15 | Horizontal Digital Image Filter |
| LF3330 | Vertical Digital Image Filter(垂直數字圖像濾波器) |
| 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）) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LF3320QC15 | 制造商:LOGIC 制造商全稱:LOGIC 功能描述:Horizontal Digital Image Filter |
| LF3320QC18 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Filter |
| LF3320QC25 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Filter |
| LF3321 | 制造商:LOGIC 制造商全稱:LOGIC 功能描述:Horizontal Digital Image Filter Improved Performance |
| LF3330 | 制造商:LOGIC 制造商全稱:LOGIC 功能描述:Vertical Digital Image Filter |
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