Microchip Technology MCP6XXXDM-FLTR User Manual

Page of 46
Active Filter Demo Board Kit User’s Guide
DS51614A-page 6
© 2006 Microchip Technology Inc.
1.3
INTENDED USE OF THE ACTIVE FILTER DEMO BOARD KIT
This kit is intended to support active filters designed by FilterLab
®
V2.0 (see 
Section 1.6 “Associated Tools”). These filters are all pole and are built by cascading 
first and second order sections.
Higher frequency filters (e.g., a low-pass filter with cutoff at 1 MHz) can have their 
design initially verified on these boards; see Section 4.5 “Higher Frequency Filters”.
1.4
ACTIVE FILTER DEMO BOARD KIT DESCRIPTION
The Printed Circuit Boards (PCB) in the Active Filter Demo Board Kit have the following 
features:
• All filter resistors and capacitors are socketed
• Supports all Microchip single op amps
- PDIP-8 package (e.g., MCP6271) are socketed
- SOIC-8 package can be accomodated; seSection 4.6 “Using 8-Pin SOIC 
• Test points for connecting lab equipment
• Single supply configuration
• Modularized connection scheme
1.5
SUB-ASSEMBLIES
The Active Filter Demo Board Kit is comprised of three sub-assemblies:
• V
DD
/2 Filter Section
- Sub-Assembly # : 102-00098R1
- One PCB designed to provide mid-supply biasing to the other PCBs
- Provides power supply test points for a lab power supply
- Provides input test points for a lab signal generator
• Active Filter Sections
- Sub-Assembly # : 102-00097R1
- Four PCBs designed to be cascaded
- Support filter orders between n = 1 and n = 8
- Provide output test points for lab equipment
• Accessory Bag
- Sub-Assembly # : 110-00097R1
- Kit of resistors, capacitors, and op amps that can be used to build the filter