Microchip Technology MCP4XXXDM-DB Datenbogen

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MCP4XXX DIGITAL POTENTIOMETER
DAUGHTER BOARD USER’S GUIDE
© 2006 Microchip Technology Inc.
DS51621A-page 7
Chapter 2.  Installation and Operation
2.1
INTRODUCTION
This daughter board allows evaluation of digital potentiometer devices in different 
circuit configurations. The board supports the MCP42XXX devices and the 
MCP4011/MCP4021 devices.
This board is intended to be “plugged into” the 28-pin header of the PICDEM™ Demo 
Boards. The board may also be “jumpered” into a desired application circuit.
2.2
FEATURES
The MCP4XXX Digital Potentiometer Daughter Board has the following features:
• Header to interface to PICDEM™ boards using 28-pin header, including:
- PICDEM™ HPC Explorer Demo Board
- PICDEM™ FS USB Demo Board
- PICDEM™ 2 Plus Demo Board (Rev 5 or later)
- PICDEM™  LCD
• TC1240A Voltage Doubler to generate V
IHH
 voltage for WiperLock™ Technology 
evaluation
• Jumpers for configuration of U1-Pot0, U2-Pot0, and U2-Pot1 terminal connections
• Jumpers for MCP4021 Pot (A, W, and B) to replace U1-Pot0 in desired circuit
• Jumpers for routing signals (SI, SO, SCK, and CS) from either a PICDEM HPC 
Demo board or a PICDEM FS USB Demo Board
• Pads for easy connection to the Digital Potentiometer signals, including the 
Resistor Network Terminals and the Serial Interface signals
• Connection terminals may be either through-hole or surface-mount