参数资料
型号: IP-FFT
厂商: Altera
文件页数: 17/70页
文件大小: 0K
描述: IP FFT/IFFT
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: 初始许可证
Chapter 1: About This MegaCore Function
1–13
Performance and Resource Utilization
Table 1–20 lists resource usage with burst data flow architecture, using the
4 multipliers/2 adders complex multiplier structure, for data and twiddle width 16,
for Stratix IV (EP4SGX70DF29C2X) devices.
Table 1–19. Resource Usage with the Burst Data Flow Architecture—Stratix IV Devices
Points
256
1024
4096
256
1024
4096
256
1024
4096
256
1024
4096
256
1024
4096
Engine
Architecture
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Single Output
Single Output
Single Output
Single Output
Single Output
Single Output
Number of
Engines (2)
1
1
1
2
2
2
4
4
4
1
1
1
2
2
2
Combinational
ALUTs
1794
1829
1881
2968
3014
3053
5160
5218
5284
704
740
801
1036
1052
1092
Logic
Registers
3502
3684
3852
5489
5680
5856
9891
10101
10290
1436
1482
1528
2332
2408
2484
Memory
(Bits)
14592
57600
229632
14592
57600
229632
14592
57600
229632
9472
37120
147712
14592
57600
229632
Memory
(M9K)
8
8
28
15
15
28
28
28
28
3
6
19
9
11
28
18 × 18
Blocks
12
12
12
24
24
24
48
48
48
4
4
4
8
8
8
f MAX
(MHz)
436
446
443
418
412
366
369
385
380
407
413
412
405
431
406
Notes to Table 1–20 :
(1) Represents data and twiddle factor precision.
(2) When using the burst 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.
Table 1–21 lists performance with burst data flow architecture, using the
4 multipliers/2 adders complex multiplier structure, for data and twiddle width 16,
for Stratix IV (EP4SGX70DF29C2X) devices.
Table 1–20. Performance with the Burst Data Flow Architecture—Stratix IV Devices (Part 1 of 2)
Transform
Data Load & Transform
Block Throughput
Calculation Time
Points
Engine
Architecture
Number of
Engines (1)
f MAX
(MHz)
Cycles Time ( ? s)
Calculation
Cycles Time ( ? s)
Cycles
Time ( ? s)
256
1024
4096
256
1024
4096
256
1024
4096
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
1
1
1
2
2
2
4
4
4
436
446
443
418
412
366
369
385
380
235
1069
5167
162
557
2607
118
340
1378
0.54
2.39
11.66
0.39
1.35
7.12
0.32
0.88
3.63
491
2093
9263
397
1581
6703
374
1364
5474
1.12
4.69
20.9
0.95
3.83
18.3
1.01
3.55
14.42
331
1291
6157
299
1163
5133
283
1099
4633
0.76
2.89
13.89
0.71
2.82
14.01
0.77
2.86
12.20
November 2013
Altera Corporation
FFT MegaCore Function
User Guide
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