DAF30-4 Microchip Technology, DAF30-4 Datasheet - Page 28

• Manufacturer Part Number: DAF30-4
• Description: DEVICE ATP FOR ICE4000
• Manufacturer: Microchip Technology

Specifications of DAF30-4

• Module/board Type: *
• Processor To Be Evaluated: dsPIC30F
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: ICE4000
• For Use With: PMF30XA1 - PROCESSOR MODULE FOR ICE4000
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Digital Filter Design/Digital Filter Design Lite
The Digital Filter Design tool for the dsPIC
Signal Controllers makes designing, analyzing and
implementing Finite Impulse Response (FIR) and Infinite
Impulse Response (IIR) digital filters easy through a
menu-driven and intuitive user interface. The filter design
tool performs complex mathematical computations for
filter design, provides superior graphical displays and
generates comprehensive design reports. Desired filter
frequency specifications are entered and the tool
automatically generates the filter code and coefficient files
ready to use in the MPLAB
filter transfer function is supported with multiple generated
graphs, such as: magnitude, phase, group delay, log
magnitude, impulse response and pole/zero locations.
Finite Impulse Response Filter Design
• Design method selection:
• Low-pass, high-pass, band-pass and band-stop filters
• FIR filters can have up to 513 taps
• Following window functions are supported:
• Reports show design details, such as window
• Filters are designed for a maximum gain of 1
Comparison – Filter Design vs. Filter Design Lite
DS30177T-page 22
Low-pass
High-pass
Band-pass
Band-stop
FIR Taps
IIR Taps for LP, HP
IIR Taps for BP, BS
Generate ASM Code
Export to MPLAB
Export to MPLAB
MATLAB
Ordering Information:
SW300001
SW300001-LT Digital Filter Design Lite
DS51442
Development Systems Ordering Guide
- FIR Windows design
- FIR Equiripple design (Parks-McClellan)
- Rectangular: 4 Term Cosine
- Hanning (Hann): 4 Term Cosine with continuous 5th
- Hamming: Minimum 4 Term Cosine
- Triangular: Good 4 Term Blackman Harris
- Blackman: Harris Flat Top
- Exact Blackman: Kaiser
- 3 Term Cosine: Dolph-Tschebyscheff
- 3 Term Cosine with continuous 3rd derivative: Taylor
- Minimum 3 Term Cosine: Gaussian
coefficients and Impulse Response, prior to
multiplying by the window function
derivative
®
Support
®
®
C30 C Compiler
IDE
Digital Filter Design
“Digital Filter Design/Digital Filter Design Lite” (Available at: www.microchip.com)
®
IDE. System analysis of the
Filter Design Filter Design Lite
Up to 513
Up to 10
Up to 20
®
16-bit Digital
Up to 64
Up to 4
Up to 8
—
Infinite Impulse Response Filter Design
• Low-pass, high-pass, band-pass and band-stop filters
• Filter orders up to 10 for low-pass and high-pass filters
• Filter orders up to 20 for band-pass and band-stop filters
• Five analog prototype filters are available:
• Digital Transformations are performed by bilinear
• Reports show design details, such as all
Code Generation Features
• Generated files are compliant with the Microchip
• Choice of placement of coefficients in program space
• ‘C’ wrapper/header code generation
Graphs
• Magnitude Response vs. Frequency
• Log Magnitude vs. Frequency
• Phase Response vs. Frequency
• Group Delay vs. Frequency
• Impulse Response vs. Time (per sample)
• Step Response vs. Time (per sample)
• Pole and Zero Locations (IIR only)
- Butterworth
- Tschebyscheff
- Inverse Tschebyscheff
- Elliptic
- Bessel
transformation method
transformations from normalized low-pass filter to
desired filter
dsPIC30F C30 C Compiler, Assembler and Linker
or data space
© 2005 Microchip Technology Inc.