Microchip Technology MCP3423 Manuel utilisateur

MCP3423

Evaluation Board

User’s Guide

Information contained in this publication regarding device

applications and the like is provided only for your convenience

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications.

MICROCHIP MAKES NO REPRESENTATIONS OR

WARRANTIES OF ANY KIND WHETHER EXPRESS OR

IMPLIED, WRITTEN OR ORAL, STATUTORY OR

OTHERWISE, RELATED TO THE INFORMATION,

INCLUDING BUT NOT LIMITED TO ITS CONDITION,

QUALITY, PERFORMANCE, MERCHANTABILITY OR

FITNESS FOR PURPOSE. Microchip disclaims all liability

arising from this information and its use. Use of Microchip

devices in life support and/or safety applications is entirely at

the buyer’s risk, and the buyer agrees to defend, indemnify and

hold harmless Microchip from any and all damages, claims,

suits, or expenses resulting from such use. No licenses are

conveyed, implicitly or otherwise, under any Microchip

intellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, Accuron,

dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,

PICSTART, rfPIC, SmartShunt and UNI/O are registered

trademarks of Microchip Technology Incorporated in the

U.S.A. and other countries.

FilterLab, Linear Active Thermistor, MXDEV, MXLAB,

SEEVAL, SmartSensor and The Embedded Control Solutions

Company are registered trademarks of Microchip Technology

Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, CodeGuard,

dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,

ECONOMONITOR, FanSense, In-Circuit Serial

Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB

Certified logo, MPLIB, MPLINK, mTouch, PICkit, PICDEM,

PICDEM.net, PICtail, PIC32 logo, PowerCal, PowerInfo,

PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total

Endurance, WiperLock and ZENA are trademarks of

Microchip Technology Incorporated in the U.S.A. and other

countries.

SQTP is a service mark of Microchip Technology Incorporated

in the U.S.A.

All other trademarks mentioned herein are property of their

respective companies.

Printed on recycled paper.

Note the following details of the code protection feature on Microchip devices:

• Microchip products meet the specification contained in their particular Microchip Data Sheet.

• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the

intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not

mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our

products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts

allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Microchip received ISO/TS-16949:2002 certification for its worldwide

headquarters, design and wafer fabrication facilities in Chandler and

Tempe, Arizona; Gresham, Oregon and design centers in California

and India. The Company’s quality system processes and procedures

are for its PIC®MCUs and dsPIC®DSCs, KEELOQ®code hopping

devices, Serial EEPROMs, microperipherals, nonvolatile memory and

analog products. In addition, Microchip’s quality system for the design

and manufacture of development systems is ISO 9001:2000 certified.

MCP3423 EVALUATION BOARD

USER’S GUIDE

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. Quick Start Instructions

1.1 Introduction ..................................................................................................... 5

1.2 Description of the MCP3423 Evaluation Board .............................................. 5

1.3 Getting Started with PICkit Serial Analyzer .................................................... 6

1.4 Experiment for CH2 ...................................................................................... 22

Appendix A. Schematic and Layouts

A.1 Introduction .................................................................................................. 23

A.2 Board – Schematic ....................................................................................... 24

A.3 Board – Top Laer ......................................................................................... 25

A.4 Board – Top Metal Layer ............................................................................. 26

A.5 Board – Bottom Layer .................................................................................. 27

A.6 Board – Bottom Metal Layer ........................................................................ 28

Appendix B. Bill of Materials (BOM)

Worldwide Sales and Service ....................................................................................30

MCP3423 Evaluation Board User’s Guide

NOTES:

MCP3423 EVALUATION BOARD

USER’S GUIDE

Preface

INTRODUCTION

This chapter contains general information that will be useful to know before using the

MCP3423 Evaluation Board. Items discussed in this chapter include:

• Document Layout

• Conventions Used in this Guide

• Recommended Reading

• The Microchip Web Site

• Customer Support

• Document Revision History

DOCUMENT LAYOUT

This document describes how to use the MCP3423 Evaluation Board as a

development tool to emulate and debug firmware on a target board. The manual layout

is as follows:

•Chapter 1. “Quick Start Instructions” – this chapter provides an overview of the

MCP3423 Evaluation Board and instructions on how to use the MCP3423

Evaluation Board with the PICkit Serial Analyzer.

•Appendix A. “Schematic and Layouts” – shows the schematic and layout

diagrams for the MCP3423 Evaluation Board.

•Appendix B. “Bill of Materials (BOM)” – lists the parts used to build the

MCP3423 Evaluation Board.

NOTICE TO CUSTOMERS

All documentation becomes dated, and this manual is no exception. Microchip tools and

documentation are constantly evolving to meet customer needs, so some actual dialogs

and/or tool descriptions may differ from those in this document. Please refer to our web site

(www.microchip.com) to obtain the latest documentation available.

Documents are identified with a “DS” number. This number is located on the bottom of each

page, in front of the page number. The numbering convention for the DS number is

“DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the

document.

For the most up-to-date information on development tools, see the MPLAB®IDE on-line help.

Select the Help menu, and then Topics to open a list of available on-line help files.

MCP3423 Evaluation Board User’s Guide

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB®IDE User’s Guide

Emphasized text ...is the only compiler...

Initial caps A window the Output window

A dialog the Settings dialog

A menu selection select Enable Programmer

Quotes A field name in a window or

dialog

“Save project before build”

Underlined, italic text with

right angle bracket

A menu path File>Save

Bold characters A dialog button Click OK

A tab Click the Power tab

N‘Rnnnn A number in verilog format,

where N is the total number of

digits, R is the radix and n is a

digit.

4‘b0010, 2‘hF1

Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>

Courier New font:

Plain Courier New Sample source code #define START

Filenames autoexec.bat

File paths c:\mcc18\h

Keywords _asm, _endasm, static

Command-line options -Opa+, -Opa-

Bit values 0, 1

Constants 0xFF, ‘A’

Italic Courier New A variable argument file.o, where file can be

any valid filename

Square brackets [ ] Optional arguments mcc18 [options] file

[options]

Curly brackets and pipe

character: { | }

Choice of mutually exclusive

arguments; an OR selection

errorlevel {0|1}

Ellipses... Replaces repeated text var_name [,

var_name...]

Represents code supplied by

user

void main (void)

{ ...

}

Preface

RECOMMENDED READING

This user's guide describes how to use MCP3423 Evaluation Board. Other useful

documents are listed below. The following Microchip document is available and

recommended as supplemental reference resources:

PICkit™ Serial Analyzer User’s Guide (DS51647)

Consult this document for instructions on how to use the PICkit Serial Analyzer

hardware and software.

MCP3422/3/4 Data Sheet, “18-Bits, Multi-Channel Delta-Sigma Analog-to-Digital

Converter with I2C Interface and On-Board Reference” (DS22088)

This data sheet provides detailed information regarding the MCP3423 product family.

THE MICROCHIP WEB SITE

Microchip provides online support via our web site at www.microchip.com. This web

site is used as a means to make files and information easily available to customers.

Accessible by using your favorite Internet browser, the web site contains the following

information:

•Product Support – Data sheets and errata, application notes and sample

programs, design resources, user’s guides and hardware support documents,

latest software releases and archived software

•General Technical Support – Frequently Asked Questions (FAQs), technical

support requests, online discussion groups, Microchip consultant program

member listing

•Business of Microchip – Product selector and ordering guides, latest Microchip

press releases, listing of seminars and events, listings of Microchip sales offices,

distributors and factory representatives

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Field Application Engineer (FAE)

• Technical Support

Customers should contact their distributor, representative or field application engineer

(FAE) for support. Local sales offices are also available to help customers. A listing of

sales offices and locations is included in the back of this document.

Technical support is available through the web site at: http://support.microchip.com.

DOCUMENT REVISION HISTORY

Revision A (November 2008)

• Initial Release of this Document.

MCP3423 Evaluation Board User’s Guide

NOTES:

MCP3423 EVALUATION BOARD

USER’S GUIDE

Chapter 1. Quick Start Instructions

1.1 INTRODUCTION

The following sections provide an overview of the MCP3423 Evaluation Board and

demonstrate how to use it with the PICkit™ Serial Analyzer (P/N: DV164122).

The following topics are covered:

• Description of the MCP3423 Evaluation Board

• How to use MCP3423 Evaluation Board with the PICkit Serial Analyzer

1.2 DESCRIPTION OF THE MCP3423 EVALUATION BOARD

The MCP3423 Evaluation Board (P/N MCP3423EV) contains a MCP3423 18-Bit ΔΣ

Analog-to-Digital Converter (ADC). The MCP3423 is a 2-channel 18 bit delta-sigma

ADC device with various configuration options. The board has analog input connection

pads and various test pads.

The user can connect inputs and test the conversion results using the PICkit Serial

Analyzer and its PC graphic user interface (GUI). The MCP3423 Evaluation Board has

the following interfaces:

• PICkit Serial Analyzer (P/N: DV164122) for writing configuration register bits and

reading the conversion data.

The board has test points for SDL, SDA, and analog inputs. By connecting an

oscilloscope to these test points, the user can examine the data communications

through the I2C™bus line and observe the resulting conversion output. Refer to

Appendix A. “Schematic and Layouts”.

1.2.1 I2C Address Bits and A0 Address Bit Selection

The I2C device code and address bits of the MCP3423 device are:

• Device Code: ‘1101’

• A2, A1, A0 Address Bits: determined by the JP2 (Adr1 pin) and JP3 (Adr0 pin).

• See Table 1-1 for the I2C Device Address bits and JP2 and JP3 connections.

Note: The user can use this board without the PICkit Serial Analyzer as long as

the VDD, SCL, and SDA are provided through J1 connector. This Evaluation

Board does not include MCU.

MCP3423 Evaluation Board User’s Guide

FIGURE 1-1: Front View of the MCP3423 Evaluation Board.

1.3 GETTING STARTED WITH PICKIT SERIAL ANALYZER

Figure 1-1 shows the MCP3423 Evaluation Board, and Figure 1-2 shows the

MCP3423 and PICkit Serial Analyzer.

The following describes how to use them together:

1. Connect the MCP3423 Evaluation Board’s 6-pin socket to the PICkit Serial

Analyzer as shown in Figure 1-2.

2. Connect the oscilloscope probes to the SCL and SDA test pins (optional).

3. VDD Selection: You can use the VDD from the PICkit Serial Analyzer or use your

own external VDD. The JP1 connector selects the VDD path.

(a) Connect JP1, if using VDD from PICkit Serial Analyzer.

(b) Disconnect JP1 and apply VDD at VDD1 pin, if you are using an external VDD.

4. Address bit selection using JP2 and JP3 connectors.

The I2C device code and address bits of the MCP3423 device are:

• MCP3423 I2C device code: ‘1101’

• A2, A1, A0 Address Bits: determined by the JP2 (Adr1 pin) and JP3 (Adr0 pin)

• The JP2 and JP3 connectors are external address bit selections. Connect these

pins to VSS, VDD, float, or connect any arbitrary voltage

• See Table 1-1 for the I2C Device Address bits and JP2 and JP3 connections

5. Connecting VDD:LED D1 turns on when VDD is applied. The PICkit Serial

Analyzer will provide VDD automatically, if it is connected to the PC. Make sure

LED D1 turns on, when you execute the command using the PICkit Serial

Analyzer.

Table des matières

Autres manuels Microchip Technology Carte mère

Microchip Technology

Microchip Technology EVB-KSZ8563 Manuel utilisateur

Microchip Technology

Microchip Technology MCP1601 Manuel utilisateur

Microchip Technology

Microchip Technology BM20 Manuel utilisateur

Microchip Technology

Microchip Technology DM320115 Manuel d'installation

Microchip Technology

Microchip Technology HV2903 Manuel utilisateur

Microchip Technology

Microchip Technology HV2903 Manuel utilisateur

Microchip Technology

Microchip Technology PICDEM 2 Plus Manuel utilisateur

Microchip Technology

Microchip Technology MCP19117 Manuel utilisateur

Microchip Technology

Microchip Technology MCP6N16 Manuel utilisateur

Microchip Technology

Microchip Technology MCP1632 Manuel utilisateur

Microchip Technology

Microchip Technology EVB-LAN7801 Manuel utilisateur

Microchip Technology

Microchip Technology SAM E70 Xplained Ultra Manuel utilisateur

Microchip Technology

Microchip Technology ATBTLC1000 Xplained Pro Guide d'installation

Microchip Technology

Microchip Technology SAMA5D2-PTC-EK Manuel utilisateur

Microchip Technology

Microchip Technology MCP1632 Manuel utilisateur

Microchip Technology

Microchip Technology PICDEM 2 Plus Manuel utilisateur

Microchip Technology

Microchip Technology MCP19035 Manuel utilisateur

Microchip Technology

Microchip Technology MCP2150 Manuel utilisateur

Microchip Technology

Microchip Technology MCP73871 Manuel utilisateur

Microchip Technology

Microchip Technology MCP39F501 Manuel utilisateur

Microchip Technology

Microchip Technology SAM E51 Curiosity Nano Manuel utilisateur

Microchip Technology

Microchip Technology MCP1642B Manuel utilisateur

Microchip Technology

Microchip Technology PICKIT 2 PROGRAMMER-TO-GO Manuel utilisateur

Microchip Technology

Microchip Technology MIC23356 Manuel utilisateur

Manuels Carte mère populaires d'autres marques

DFI

DFI SD170 Manuel utilisateur

ASROCK

ASROCK ROMED8-2T Manuel utilisateur

Asus

Asus P2L97A Manuel utilisateur

Winmate

Winmate IC70 Manuel utilisateur

Asus

Asus MES-B Manuel utilisateur

Grantech

Grantech SYS8F377VGGA-3OMN Manuel utilisateur

Telit Wireless Solutions

Telit Wireless Solutions SL869-3DR Manuel utilisateur

Gigabyte

Gigabyte GA-9IVDT Manuel utilisateur

Texas Instruments

Texas Instruments ADS8372EVM Manuel utilisateur

Commell

Commell MS-C73 Manuel utilisateur

IBT Technologies

IBT Technologies MB860 Manuel utilisateur

Nvidia

Nvidia TEGRA DG-04927-001_V01 Manuel utilisateur

Biostar

Biostar M7VIT Bravo Instructions d'utilisation et d'installation

Intel

Intel D33217CK Manuel utilisateur

Asus

Asus F1A55-M LX PLUS R2.0 Manuel utilisateur

EPC

EPC EPC9147C Manuel utilisateur

Asus

Asus EX-B760M-V5 D4 Manuel utilisateur

EPOX

EPOX MU-8KHA0010 Manuel utilisateur