MCP43XXEV EVALUATION BOARD
USER’S GUIDE
©
2010 Microchip Technology Inc.
DS51892A-page 11
Chapter 2. Installation and Operation
2.1
INTRODUCTION
The MCP43XXEV Evaluation Board allows the system designer to quickly evaluate the
operation of the MCP4361 10 k
Ω
(-103) Digital Potentiometer device using the PICkit
Serial Analyzer. The PICkit Serial Analyzer is available separately (order number:
DV164122).
This board is a minimum configuration for the device. As well as the device, other
desired passive components (resistors and capacitors) and connection posts may be
installed.
The board can also be very easily jumpered into a customer’s existing circuit. This
gives an indication of the MCP4361 device performance, but is affected by the jumper
lead length and the EM noise that the jumpers pick up.
The device’s resistor networks 0 and 2 have be configured in a potentiometer mode
with the A terminal connected to V
DD
through a 0
Ω
resistor and the B terminal
connected to V
SS
with a 0
Ω
resistor. Resistor networks 1 and 3 can be evaluated for
rheostat operation.
The MCP43XXEV Evaluation Board uses the generic TSSOP20EV Evaluation Board
PCB. The kit includes a second PCB which is blank for the user to populate as desired.
Additional PCBs may be ordered (order number: TSSOP20EV). The TSSOP20EV kit
includes 5 blank PCBs.
Other boards can easily be built up using the TSSOP20EV PCB to allow evaluation of
other resistance options (5 k
Ω
, 50 k
Ω
, or 100 k
Ω
) or any of the other digital
potentiometer devices in the following packages:
• TSSOP-20 package
- MCP4331, MCP4341, MCP4351, or MCP4361
• TSSOP-14 package
- MCP4332, MCP4342, MCP4352, MCP4362, MCP4231, MCP4241,
MCP4251, MCP4261, MCP4631, MCP4641, MCP4651, MCP4661,
MCP42010, MCP42050, or MCP42100
The board also has a 6-pin interface (PICkit Serial, ICSP, etc.) whose signals can easily
be jumpered to any of the device’s pins.
Additional information on using the TSSOP20EV Evaluation Board PCB or for modify-
ing the MCP43XXEV board is available in the TSSOP20EV User’s Guide (DS51875).
Appendix A. “Schematic and Layouts”
has information of the PCB schematic and
layout while Figure 2-2 shows components that are installed on the PCB.
