MCP4XXXDM-DB Microchip Technology, MCP4XXXDM-DB Datasheet - Page 21

• Manufacturer Part Number: MCP4XXXDM-DB
• Description: BOARD DAUGHTER DIGIPOT MCP4XXX
• Manufacturer: Microchip Technology

Specifications of MCP4XXXDM-DB

• Main Purpose: Digital Potentiometer
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP42010-103, MCP4021-103
• Primary Attributes: 2 Dual Pots and 1 Single Pot, 10 kOhm, Non Volatile
• Secondary Attributes: 2.7 ~ 5.5 V, 150 ppm/°C or 800 ppm/°C
• Processor To Be Evaluated: MCP4xxx
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable

2.5
© 2006 Microchip Technology Inc.
DEMO WITH PICDEM DEMO BOARD
There is one demo for this daughter board. The demo has an assembly versions for the
PICDEM HPC Explorer Demo Board and the PICDEM FS USB Demo Board.
The following hardware is required for this demo:
• PC with MPLAB-IDE installed
• ICD 2
• PICDEM HPC Explorer Demo Board (and power supply)
• 4 Channel oscilloscope
Figure 2-7 shows the Resistor Network circuit configuration for the demo. To create this
circuit, the Jumper configuration and oscilloscope connection points for the demo are
shown in Figure 2-8.
The output waveform is shown in Figure 2-10. For this waveform, the U1-Pot0 is win-
dowed by forcing U2-Pot0 and U2-Pot1 to mid-scale. The Wiper (U1-P0W) is loaded
with values to create a Triangle waveform. U1-Pot1 is connected to Power and Ground,
and the Wiper (U1-P1W) is loaded with values to create an inverse Triangle waveform.
FIGURE 2-7:
Note:
V
Channel 3
A
U2-P0B
U2-P0A
An oscilloscope with fewer channels can be used, but this will reduce the
information that can be displayed.
U2-P0W
Demo Resistor Network Circuit Configuration.
U2-P1B
U1-P0B
U2-P1A
U1-P0A
U1-P0W
U2-P1W
V
Channel 2
B
U1-P1B
U1-P1A
U1-P1W
V
Channel 1
P0W
DS51621A-page 17
V
Channel 4
P1W