参数资料
| 型号： | IP-FIR |
| 厂商： | Altera |
| 文件页数： | 40/76页 |
| 文件大小： | 0K |
| 描述： | IP FIR COMPILER |
| 标准包装： | 1 |
| 系列： | * |
| 类型： | MegaCore |
| 功能： | 有限脉冲响应编译器 |
| 许可证： | 初始许可证 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页当前第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页
3–16
Chapter 3: Parameter Settings
Resource Estimates
Resource Estimates
The FIR Compiler automatically calculates and displays the estimated resources that
the filter will use in the Resource Estimates box of the Architecture Specification
section ( Parameterize FIR Compiler page).
The FIR Compiler provides the estimated size in embedded memory blocks, DSP
blocks, and logic cells. The Throughput box displays the number of clock cycles
required to compute the result ( Figure 3–10 ).
Figure 3–10. Resource Estimates
1
The resource usage estimate may differ from Quartus II resource usage by +/- 30%,
depending on which optimization method you use in the Quartus II software.
Additionally, the resource estimator is less accurate for small filters (500 logic cells or
less). For small filters, compile the design in the Quartus II software to obtain the
resource usage.
Filter Design Tips
This section provides some additional tips for using the FIR Compiler:
■
■
■
■
To prevent high-pass filters from rolling off near Nyquist, select an odd number of
taps.
You can import coefficients from the MATLAB software into the FIR Compiler via
a text file. Simply save your coefficients as fixed or floating-point numbers to an
ASCII file, one coefficient per line.
To make a quadrature phase shift keying (QPSK), quadrature amplitude
modulation (QAM), or phase shift keying (PSK) modulator or demodulator using
the FIR Compiler, create a multichannel filter by indicating two or more channels
on the input specification area.
A comb filter is a filter that has repetitive notches. You can make a comb filter by
first making a single-notch filter, and then using sub-sampling. The process of sub-
sampling reflects or mirrors the notches in the frequency domain at all frequencies
above Nyquist.
? May 2011 Altera Corporation
相关PDF资料 |
PDF描述 |
|---|---|
| IP-NCO | IP NCO COMPILER |
| IP-NIOS | IP NIOS II MEGACORE |
| IP-PCI/MT64 | IP PCI 64BIT MASTER/TARGET |
| IP-PCIE/8 | IP PCI EXPRESS, X8 |
| IP-POSPHY4 | IP POS-PHY L4 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IP-FIRII | 功能描述:开发软件 FIR Compiler II MegaCore RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors |
| IPFLBPT2 | 制造商:Carlo Gavazzi 功能描述:IL 35MM MUSH P-P PL 22MM RED |
| IPG1-0-90 | 制造商:Sensata Technologies 功能描述:1 Pole |
| IPG1-1-41-203-90 | 制造商:Sensata Technologies 功能描述:1 Pole |
| IPG1-1-51-103-A-00-V | 制造商:Sensata Technologies 功能描述:Circuit Breaker Magnetic 1Pole 10A 65VDC |
发布紧急采购，3分钟左右您将得到回复。