参数资料
型号: IPR-FFT
厂商: Altera
文件页数: 18/70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
1–14
Chapter 1: About This MegaCore Function
Performance and Resource Utilization
Table 1–20. Performance with the Burst Data Flow Architecture—Stratix IV Devices (Part 2 of 2)
Transform
Data Load & Transform
Block Throughput
Calculation Time
Points
Engine
Architecture
Number of
Engines (1)
f MAX
(MHz)
(2)
Cycles Time ( ? s)
Calculation
Cycles Time ( ? s)
Cycles
(3)
Time ( ? s)
256
1024
4096
256
1024
4096
Single Output
Single Output
Single Output
Single Output
Single Output
Single Output
1
1
1
2
2
2
407
413
412
405
431
406
1115
5230
24705
585
2652
12329
2.74
12.66
59.91
1.45
6.16
30.35
1371
6344
28801
841
3676
16495
3.37
15.35
69.84
2.08
8.54
40.61
1628
7279
32898
1098
4701
20605
4.00
17.62
79.78
2.71
10.92
50.73
Notes to Table 1–21 :
(1) In the burst I/O data flow architecture, you can specify the number of engines in the FFT parameter editor. You may choose from one to two
single-output engines in parallel, or from one, two, or four quad-output engines in parallel.
(2) Transform time is the time frame when the input block is loaded until the first output sample (corresponding to the input block) is output.
Transform time does not include the time to unload the full output data block.
(3) Block throughput is defined as the minimum number of cycles between two successive start-of-packet ( sink_sop ) pulses.
Stratix V Devices
Table 1–22 lists the streaming data flow performance, using the 4 multipliers/2 adders
complex multiplier structure, for data and twiddle width 16, for Stratix V
(5SGXEA7H3F35C2) devices.
Table 1–21. Performance with the Streaming Data Flow Engine Architecture—Stratix V Devices
Points
256
1024
4096
Combinational
ALUTs
2,093
2,489
2,352
Logic
Registers
3,944
4,719
4,801
Memory
(Bits)
39,168
155,904
622,848
Memory
(M20K)
20
20
38
DSP
Blocks
6
6
6
f MAX
(MHz)
395
382
370
Clock
Cycle
Count
256
1,024
4,096
Transform
Time ( ? s)
0.65
2.68
11.08
FFT MegaCore Function
User Guide
November 2013 Altera Corporation
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