MCP46XXDM-PTPLS Microchip Technology, MCP46XXDM-PTPLS Datasheet - Page 15

• Manufacturer Part Number: MCP46XXDM-PTPLS
• Description: BOARD PICTAIL DIGI POT MCP4XXX
• Manufacturer: Microchip Technology
• Series: PICtail™ Plusr

Specifications of MCP46XXDM-PTPLS

• Main Purpose: Digital Potentiometer
• Embedded: No
• Utilized Ic / Part: MCP46xx
• Primary Attributes: 1 Dual Pot, 10k Ohms, 257 Taps, I²C Interface
• Secondary Attributes: 2.7 ~ 5.5 V, 150 ppm/°C
• Silicon Manufacturer: Microchip
• Silicon Core Number: MCP4631, MCP4632, MCP4641, MCP4642, MCP4651, MCP4652, MCP4661, MCP4662
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

© 2009 Microchip Technology Inc.
2.3.1
Figure 2-2 shows the component placement of the MCP46XX PICtail™ Plus Daughter
Board as well as the operation of the board jumpers.
The VAx and VBx pads allow an external voltage source to be applied to the device’s
desired Terminal A or Terminal B pin. The VWx pad is directly connected to the
corresponding Terminal W pin, which makes it easy to measure the resulting voltage.
The AVDD pad allows an external power supply to power the board, which should
improve performance compared to powering the board via the PICtail Plus header or
the PICkit Serial Analyzer.
The Printed Circuit Board (PCB) has been designed for the support of the SPI and I
device families (MCP42XX and MCP46XX), so not all components are installed to
support the operation of the SPI version of the MCP46XX PICtail™ Plus Daughter
Board.
2.3.1.1
Figure 2-2 shows the function of the MCP46XX PICtail™ Plus Daughter Board
jumpers. Some of the jumpers configure the voltage source of the Terminal A and
Terminal B pins while others determine the connection of the W pins. Lastly, there is a
jumper to ensure that drive conflicts do not occur if an external power supply is being
used for the AVDD voltage.
The default jumper configuration for the shipped MCP46XX PICtail™ Plus Daughter
Board is shown in Figure 2-3.
The Hardware
JUMPER DESCRIPTIONS
DS51804A-page 11
2
C