MCP4716 datasheet(55/70 Pages) MICROCHIP

55 / 70 page

 2012 Microchip Technology Inc.

DS25154A-page 55

MCP47A1

9.0

DEVELOPMENT SUPPORT

9.1

Evaluation/Demonstration Boards

The MCP47A1 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 #

SC70EV). This will allow the MCP47A1’s capabilities to

be evaluated with the PICkit™ Serial Analyzer (order #

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 a you will need to develop a

custom PCB for the MCP47A1. 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 V

REF 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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