Microchip Technology MCP3903, Руководство пользователя

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MCP3903 ADC EVALUATION BOARD
FOR 16-BIT MCUs USER’S GUIDE
©
2011 Microchip Technology Inc. DS51994A-page 3
Table of Contents
Preface ........................................................................................................................... 1
Introduction............................................................................................................ 1
Document Layout .................................................................................................. 1
Conventions Used in this Guide ............................................................................ 2
Recommended Reading........................................................................................ 3
The Microchip Web Site ........................................................................................ 3
Customer Support ................................................................................................. 3
Document Revision History ................................................................................... 3
Chapter 1. Hardware Description
1.1 Overview ........................................................................................................ 5
1.2 PIM Module / MCP3903 Connection and Peripheral Usage Overview .......... 7
1.3 Analog Input Structure .................................................................................... 9
1.4 USB to Serial Converter ................................................................................. 9
Chapter 2. Code Example
2.1 dsPIC33 Example Description ...................................................................... 11
Appendix A. Schematics and Layouts
A.1 Introduction .................................................................................................. 15
A.2 Schematic - Analog ...................................................................................... 16
A.3 Schematic - LCD and UART ....................................................................... 17
A.4 Schematic - USB and Memory ..................................................................... 18
A.5 Schematic - Microcontroller (MCU) .............................................................. 19
A.6 Schematic - PIM Module .............................................................................. 20
A.7 Schematic - Power ....................................................................................... 21
A.8 Board - Top Trace and Top Silk ................................................................... 22
A.9 Board - Bottom Trace and Bottom Silk ........................................................ 22
A.10 Board - Layer #2 VDD ................................................................................ 23
A.11 Board - Layer #3 GND ............................................................................... 23
A.12 Board - Top SILK and PADS ..................................................................... 24
A.13 Board - Bottom SILK and PADS ................................................................ 24
Appendix B. Bill of Materials (BOM)
Worldwide Sales and Service .................................................................................... 28