参数资料
型号: IPR-FFT
厂商: Altera
文件页数: 9/70页
文件大小: 0K
描述: IP FFT/IFFT RENEW
标准包装: 1
系列: *
类型: MegaCore
功能: 快速傅里叶变换处理器
许可证: 续用许可证
Chapter 1: About This MegaCore Function
Performance and Resource Utilization
1–5
1
The variable streaming with fixed-point number representation uses natural word
growth, therefore the multiplier requirement is larger compared with the equivalent
streaming FFT with the same number of points.
Table 1–4. Performance with the Variable Streaming Data Flow Engine Architecture—Cyclone III Devices
Point Type
Fixed
Fixed
Fixed
Points
256
1024
4096
Combinational
LUTs
3859
5243
6725
Logic
Registers
4373
5840
7369
Memory
(Bits)
9997
41940
170335
Memory
(M9K)
15
21
40
9×9
Blocks
40
56
72
f MAX
(MHz)
191
193
198
Clock
Cycle
Count
256
1024
4096
Transform
Time ( ? s)
1.34
5.29
20.67
Floating
Floating
Floating
256
1024
4096
20771
26573
32428
14158
17540
20939
34464
140410
568163
62
93
148
96
128
160
116
116
116
256
1024
4096
2.20
8.83
35.3
Note to Table 1–5 :
(1) EP3C40F780C6 device.
(2) EP3C55F780C6 device.
Table 1–6 lists resource usage with buffered burst data flow architecture, using the 4
multipliers/2 adders complex multiplier structure, for data and twiddle width 16, for
Cyclone III (EP3C25F324C6) devices.
Table 1–5. Resource Usage with Buffered Burst Data Flow Architecture—Cyclone III Devices
Points
Number of
Engines (1)
Combinational
LUTs
Logic
Registers
Memory
(Bits)
Memory
(M9K)
9×9
Blocks
f MAX
(MHz)
256
1024
1
1
3129
3234
3778
3976
30,76
123136
16
16
24
24
247
241
4096
1
3291
4160
491776
60
24
227
256
1024
2
2
5161
5270
5961
6169
30976
123136
31
31
48
48
225
207
4096
256
1024
4096
2
4
4
4
5337
9015
9145
9241
6361
10738
10963
11169
491776
30976
123136
491776
60
60
60
60
48
96
96
96
215
230
230
215
Notes to Table 1–6 :
(1) When using the buffered burst architecture, you can specify the number of quad-output FFT engines in the FFT parameter editor.
(2) EP3C10F256C6 device.
(3) EP3C16F484C6 device.
November 2013
Altera Corporation
FFT MegaCore Function
User Guide
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