MCP4XXX DIGITAL POTENTIOMETER
DAUGHTER BOARD USER ’S GUIDE
Chapter 2. Installation and Operation
2.1
2.2
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.
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
? 2006 Microchip Technology Inc.
DS51621A-page 7
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