MCP47DA1 datasheet(59/76 Pages) MICROCHIP

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 2012-2013 Microchip Technology Inc.

DS25118D-page 59

MCP47DA1

9.0

DEVELOPMENT SUPPORT

9.1

Evaluation/Demonstration Boards

The MCP47DA1 devices do not have a dedicated

Evaluation or Demonstration board. Figure 9-1 shows

the component connections to make an evaluation

board using the SC70EV Bond Out PCB (order number

SC70EV) with the MCP47DA1 in a SOT-23-6 package.

This will allow the MCP47DA1’s capabilities to be

evaluated with the PICkit™ Serial Analyzer (order

number DV164122).

FIGURE 9-1:

SC70EV Bond Out PCB – Top Layer and Silk-Screen.

Note:

Since the SC70EV is a generic board, the

noise immunity of the board will not be

optimal. If noise immunity is a require-

ment, then you will need to develop a cus-

tom PCB for the MCP47DA1. This PCB

would need to use good layout techniques

to reduce noise coupling.



CL & RL

0.1 µF

1.0 µF

VREF (1)

VOUT

SCL

SDA

Required components

Recommended components for noise filtering

Note 1: The VREF pin (P8) will need to be connected to a reference voltage source (such as VDD).

Optional I2C™ bus pull-up resistors (value may need to be adjusted for your system).

4.7 k



4.7 k



VSS

VDD

Optional VOUT loading components (stacked), CL = 1 nF max and RL = 5 k max.

™

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