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| 型號： | FIR Filters |
| 廠商： | Altera Corporation |
| 英文描述： | FIR Compiler(有限的脈沖響應濾波器) |
| 中文描述： | 飛行編譯器（有限的脈沖響應濾波器） |
| 文件頁數(shù)： | 1/19頁 |
| 文件大?。?/td> | 323K |
| 代理商： | FIR FILTERS |
Altera Corporation
1
FIR Filters
January 1996, ver. 1
Functional Specification 1
A-FS-01-01
Features
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High-speed operation: up to 105 million samples per second (MSPS)
8-, 16-, 24-, 32-, and 64-tap finite impulse response (FIR) filters
Parameterized data widths, pipelining, and symmetry
Optimized for FLEX 10K and FLEX 8000 devices
Coefficients implemented as look-up table (LUT) vectors
Parallel and serial design versions
Supported by schematic and text design entry methods, including
VHDL, Verilog HDL, and the Altera Hardware Description Language
(AHDL)
Useful for a variety of applications, including high performance, real-
time video and image filtering; radio frequency (RF) filtering; radar;
magnetic resonance imaging (MRI) applications; multi-rate digital
signal processing (DSP); and spread spectrum filtering
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General
Description
Table 1
shows the performance and size of specific FIR filters in
FLEX 8000A devices. The input, coefficient, internal, and output precision
values are fully parameterized. The filter name specifies the number of taps
in the filter, and the architecture and suffixes follow the naming
convention: P = parallel, S = serial. The video convolution filter,
is discussed on page 16 of this document.
fir_3x3
,
Table 1. FIR Filter Performance & Size in FLEX 8000A Devices
FIR Filter
Input
Precision
Taps
Precision/Bits
Size
(Logic
Elements)
Performance (MSPS)
Coef.
Internal Output
Pipelined
Non-
Pipelined
A-2
101
101
100
101
7.0
6.5
102
A-4
66
75
74
75
4.9
4.1
67
A-2
28
20
18
18
3.4
2.4
24
A-4
15
13
12
12
2.4
1.7
14
fir_08tp
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
17
10
10
10
18
24
18
17
10
10
10
18
24
18
296
468
653
862
272
920
327
fir_16tp
16
24
32
16
64
fir_24tp
fir_32tp
fir_16ts
fir_64ts
fir_3x3
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