MCP6XXXDM-FLTR Microchip Technology, MCP6XXXDM-FLTR Datasheet - Page 29

• Manufacturer Part Number: MCP6XXXDM-FLTR
• Description: KIT DEMO BOARD ACTIVE FILTER
• Manufacturer: Microchip Technology

Specifications of MCP6XXXDM-FLTR

• Main Purpose: Filters, Active - Bandpass, Highpass, Lowpass
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP6271
• Primary Attributes: Cascadable PCBs, Single Supply
• Secondary Attributes: Bessel, Butterworth, and Chebyshev, with Order 1 ~ 8
• Processor To Be Evaluated: MCP6271
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable

4.1
4.2
© 2006 Microchip Technology Inc.
INTRODUCTION
POWER SUPPLIES
Chapter 4. Common Filter Modifications
The modifications described in this chapter include:
• Power Supplies
• Filter Section Ordering for Noise and Headroom
• Combining Low-pass and High-pass Sections
• Higher Frequency Filters
• Using 8-Pin SOIC Op Amps
4.2.1
To implement dual supplies, change the V
• The boards’ bypass capacitors (C1 and C3) need to be removed and replaced
• Remove R1 and R2, and then replace R2 with a short
• Set JP1 to External V
• Connect the Lab Power Supply
FIGURE 4-1:
- Connect one set from –VS (board GND) to GND (board VDD/2)
- Connect the other set from +VS (board VDD) to GND (board VDD/2).
- Voltage +V
- Voltage GND to the V
- Voltage –V
External (EXT)
These signals correspond
Set JP1 to
unpopulated P1 and J1
to the pins of the
Dual Power Supplies
S
S
to the board’s GND input (TP5)
to the board’s V
ACTIVE FILTER DEMO BOARD KIT
Setting up V
DD
V
DD
GND
GND
GND
DD
/2 (EXT, as shown)
V
V
DD
/2 input (TP4)
/2
IN
DD
DD
/2 Filter Section for dual supplies.
input (TP3)
DD
/2 Filter Section (see Figure 4-1) setup:
USER’S GUIDE
V
V
GND
GND
V
GND
Lab Power Supply
DD
DD
OUT
+VS
/2
DS51614A-page 25
GND
–VS