Post on 19-Mar-2020
© 2011 Microchip Technology Inc. DS51994A
MCP3903 ADC Evaluation Board
for 16-Bit MCUs User’s Guide
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 ourproducts. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such actsallow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding deviceapplications and the like is provided only for your convenienceand may be superseded by updates. It is your responsibility toensure that your application meets with your specifications.MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS ORIMPLIED, WRITTEN OR ORAL, STATUTORY OROTHERWISE, RELATED TO THE INFORMATION,INCLUDING BUT NOT LIMITED TO ITS CONDITION,QUALITY, PERFORMANCE, MERCHANTABILITY ORFITNESS FOR PURPOSE. Microchip disclaims all liabilityarising from this information and its use. Use of Microchipdevices in life support and/or safety applications is entirely atthe buyer’s risk, and the buyer agrees to defend, indemnify andhold harmless Microchip from any and all damages, claims,suits, or expenses resulting from such use. No licenses areconveyed, implicitly or otherwise, under any Microchipintellectual property rights.
DS51994A-page 2
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, PIC32 logo, rfPIC and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, MXDEV, MXLAB, SEEVAL 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, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, 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.
© 2011, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-61341-426-2
© 2011 Microchip Technology Inc.
Microchip received ISO/TS-16949:2009 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.
MCP3903 ADC EVALUATION BOARDFOR 16-BIT MCUs USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 1Introduction............................................................................................................ 1Document Layout .................................................................................................. 1Conventions Used in this Guide ............................................................................ 2Recommended Reading........................................................................................ 3The Microchip Web Site ........................................................................................ 3Customer Support ................................................................................................. 3Document Revision History ................................................................................... 3
Chapter 1. Hardware Description1.1 Overview ........................................................................................................ 51.2 PIM Module / MCP3903 Connection and Peripheral Usage Overview .......... 71.3 Analog Input Structure .................................................................................... 91.4 USB to Serial Converter ................................................................................. 9
Chapter 2. Code Example2.1 dsPIC33 Example Description ...................................................................... 11
Appendix A. Schematics and LayoutsA.1 Introduction .................................................................................................. 15A.2 Schematic - Analog ...................................................................................... 16A.3 Schematic - LCD and UART ....................................................................... 17A.4 Schematic - USB and Memory ..................................................................... 18A.5 Schematic - Microcontroller (MCU) .............................................................. 19A.6 Schematic - PIM Module .............................................................................. 20A.7 Schematic - Power ....................................................................................... 21A.8 Board - Top Trace and Top Silk ................................................................... 22A.9 Board - Bottom Trace and Bottom Silk ........................................................ 22A.10 Board - Layer #2 VDD ................................................................................ 23A.11 Board - Layer #3 GND ............................................................................... 23A.12 Board - Top SILK and PADS ..................................................................... 24A.13 Board - Bottom SILK and PADS ................................................................ 24
Appendix B. Bill of Materials (BOM)Worldwide Sales and Service .................................................................................... 28
© 2011 Microchip Technology Inc. DS51994A-page 3
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
DS51994A-page 4 © 2011 Microchip Technology Inc.
MCP3903 ADC EVALUATION BOARDFOR 16-BIT MCUs USER’S GUIDE
Preface
INTRODUCTIONThis chapter contains general information that will be useful to know before using the MCP3903 ADC Evaluation Board for 16-Bit MCUs. 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 LAYOUTThis document describes how to use the MCP3903 ADC Evaluation Board for 16-Bit MCUs as a development tool to emulate and debug firmware on a target board. The manual layout is as follows:• Chapter 1. “Hardware Description”– Provides important information about the
hardware.• Chapter 2. “Code example”– Describes the firmware. • Appendix A. “Schematics and Layouts”– Shows the schematic and board
layouts.• Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the
MCP3903 ADC Evaluation Board for 16-Bit MCUs.
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.
© 2011 Microchip Technology Inc. DS51994A-page 1
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
CONVENTIONS USED IN THIS GUIDEThis manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONSDescription 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 dialogA 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 OKA 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\hKeywords _asm, _endasm, staticCommand-line options -Opa+, -Opa-
Bit values 0, 1Constants 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){ ...}
DS51994A-page 2 © 2011 Microchip Technology Inc.
Preface
RECOMMENDED READINGThis User's Guide describes how to use MCP3903 ADC Evaluation Board for 16-Bit MCUs. Other useful documents are listed below. The following Microchip document is available and recommended as a supplemental reference resource:• MCP3903 Data Sheet - “Six Channel Delta Sigma A/D Converter”
(DS25048B)
THE MICROCHIP WEB SITEMicrochip 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 SUPPORTUsers of Microchip products can receive assistance through several channels:• Distributor or Representative• Local Sales Office• Field Application Engineer (FAE)• Technical SupportCustomers 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 (July 2011)• Initial Release of this Document.
© 2011 Microchip Technology Inc. DS51994A-page 3
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
NOTES:
DS51994A-page 4 © 2011 Microchip Technology Inc.
MCP3903 ADC EVALUATION BOARDFOR 16-BIT MCUs USER’S GUIDE
Chapter 1. Hardware Description
1.1 OVERVIEWThe MCP3903 ADC Evaluation Board for 16-Bit MCUs system lets users evaluate the performance of the MCP3903 six-channel ADC. It also provides a development platform for 16-bit PIC® MCU-based applications, using existing 100-pin PIM systems, compatible with the Explorer-16 and other high pincount PIC demo boards. The system comes with programmed PIC24FJ128GA010 PIM modules that communicate with the LabView GUI for data exchange and ADC setup.
1.1.1 Feature Highlights• Six-channel ADC MCP3903 output display using serial communication to the
PC Software Interface and LCD• Simultaneous 4 ksps at 91 dB Signal-to-Noise and Distortion Ratio (SINAD)
performance. The ADC can run up to 64 ksps.• System and ADC performance analysis through graphical PC tools showing Time
domain scope plot, Frequency Domain (FFT), and statistical numerical analysis.• Robust hardware design with analog grounding and analog/digital separation,
allowing low noise evaluation of the MCP3903 devices. Separate power supplies and power planes - 4 layer board.
• Pigtail Plus connectors for Explorer-16 daughter board compatibility.
© 2011 Microchip Technology Inc. DS51994A-page 5
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
FIGURE 1-1: MCP3903 ADC Evaluation Board for 16-Bit MCUs.
DS51994A-page 6 © 2011 Microchip Technology Inc.
Hardware Description
1.2 PIM MODULE / MCP3903 CONNECTION AND PERIPHERAL USAGE OVERVIEW
The MCP3903 ADC Evaluation Board for 16-Bit MCUs contains a 100-pin PIM socket, compatible with Microchip’s PIM modules. The system comes with a PIM module: the PIC24FJ128GA010. For a complete description of the firmware programmed with these two modules, see Chapter 1. “Hardware Description”.
FIGURE 1-2: Digital Connection Overview PIM/MCP3903 Connections.
Ports A, B, and D are used for signals such as push buttons, output LEDs, CS and MCLR (for MCP3903 data mode setting). Output Capture 1 is used for MCP3903’s clock generation. Serial communication is achieved through the MSSP module 1.The MCP3903 device is an ADC with a second order modulator and a third order sync filter. This Delta-Sigma A/D converter has an adjustable oversampling ratio. The CLKIN pin of the MCP3903 is the ADC’s clock (MCLK) input. The MCP3903 ADC Evaluation Board for 16-Bit MCUs offers two different options for the MCP3903 master clock (MCLK).
CONTROL SWITCHES (X3)
MCP3903
SDI
SDO
RA5
RA4
SCK1/RF6
SDO1/RF8
SDI1/RF7
RB8/9/10
PIM Module
SCK
OC1/RD0
RA9/10 D6 D7 (Green)
RF3/U1TX
RF2/U1RXUART SERIAL TO PC COMMUNICATION
RESET
DR
CSINT3/RA4
IC4/RD11
IC3/RD10
CH0+CH0-CH1+CH1-CH2+CH2-CH3+CH3-CH4+CH4-CH5+CH5-
Six Channels Sigma-Delta ADC
SPI Serial Interface
AVDDAGNDOSC1OSC2DGND DVdd
Phase CorrectionClock Generation/ INT
Vref
© 2011 Microchip Technology Inc. DS51994A-page 7
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
1.2.1 Using the Crystal X2The MCP3903 ADC Evaluation Board for 16-Bit MCUs is populated with a 3.58 MHz crystal, being used as a clock source, by placing jumpers in the following position on the MCP3903 Digital I/O header block:
FIGURE 1-3: ADC Clock Selection Jumpers - External Crystal.
1.2.2 Driving the Clock with the PIM ModuleThe PIC® MCU can be used to generate the CLKIN (MCLK) signal for the MCP3903, setting the ADC sample rate through the use of the output compare module OC1. To use this, make the following jumper change to the MCP3903 Digital I/O header block:
FIGURE 1-4: ADC Clock Selection Jumpers - Clock from MCU.
The signal frequency from OC1 can be changed by the user from the PC software by changing the value in the Sampling Speed Control box from the Edit menu. A low number will generate a high frequency signal. The value of the sampling rate, which is directly proportional to the clock frequency from OC1, is indicated in the sampling speed indicator box in the PC software (see Figure 2-3) for the dsPIC33 example. In the PIC24F example, the sampling speed is constant at 4.8 ksps, regardless of the OSR value.
XTALXTALPIM OC1CLKIN
CLKINCLKOUT
XTALXTALPIM OC1CLKIN
CLKINCLKOUT
DS51994A-page 8 © 2011 Microchip Technology Inc.
Hardware Description
1.3 ANALOG INPUT STRUCTURETwo differential input paths allow external signal sources to be easily connected to the MCP3903 input. Edge connectors JP1 and JP2 are 3-pin connectors that act both as crew-type and clip-on post connectors.
JP1 and JP2 can be used to force either channel from a differential to a single-ended configuration. R3 and R4 (on CH0), and R1 and R2 (on CH2) act as locations for burden resistor connectors for any current transformer inputs.
1.4 USB TO SERIAL CONVERTERThe MCP3903 ADC Evaluation Board for 16-Bit MCUs also contains a USB connection for connecting the evaluation board to a PC. On the board, there is an MCP2200 USB to UART converter that creates a virtual COM port on the PC. The MCP3903 ADC Evaluation Board for 16-Bit MCUs also features a RS232 connector just in case it is required. The RS232 Line driver is connected to the same UART pins of the MCU. For this reason, a 3-pin jumper (J5) is present on the evaluation board to select which serial communication will be used: USB or RS232. The following figure summarizes the connections between the ADC, MCU, USB to serial converter and RS232 line driver.
FIGURE 1-5: Serial Communication Block Diagram.
Note: To use an edge connector as a post connector, pull up the blue plastic top to access the posts.
PIM Module
USB
TX RX
MCP2200
ADC MCP3903
RF6/SCK1RF7/SDI1
RF8/SDO1
SCKSDOSDI
RS232 Driver
USB con
RS232
TXRX
RF2/U1RX
RF3/U1TX
© 2011 Microchip Technology Inc. DS51994A-page 9
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
NOTES:
DS51994A-page 10 © 2011 Microchip Technology Inc.
MCP3903 ADC EVALUATION BOARDFOR 16-BIT MCUs USER’S GUIDE
Chapter 2. Code Example
2.1 DSPIC33 EXAMPLE DESCRIPTIONIf the user needs to evaluate the ADC on a system that uses dsPIC33 microcontrollers, then a PIM connector with a dsPIC33FJ256GA710A can be used on the evaluation board.Using this example, the user can modify all MCP3903 internal registers from the PC software “MCP390x Data VIEW”. The UART communication speed is at 115.2 kbps.
2.1.1 SPI CommunicationTo transfer data from the ADC to the MCU, the SPI communication is controlled by DMA1. DMA1 channel is set up to use nul data write to read the MCP3903 register correctly. The DMA1 reads 7 bytes, but the first byte is not used. Before a new DMA read takes place, the CS pin must be controlled in the software and the MCU must wait for a new external interrupt 3 that indicates a new acquisition.After the DMA1 transfer is finished, the DMA buffer content is moved into the Vch0 and Vch1 buffers. The loop is repeated until Vch0 and Vch1 are filled.Timer 8 and Timer 9 are configured to work as a 32-bit timer. This timer starts when the acquisition is started and stopped when data buffers are full. The value indicated by this timer will be used to evaluate the sampling speed of the ADC on the PC interface.After the buffers are filled with the samples, the internal registers of MCP3903 are read also using DMA1, now configured to read 16 bytes. The state of the MCP3903 internal registers will be stored into the MCU, since later they will be sent to the PC GUI.To set the MCP3903 configuration registers, MCU must write on the SPI bus. For this purpose, the DMA0 channel is used and is set to do a thirteen bytes transfer from MCU to MCP3903.
2.1.2 UART CommunicationTo send the acquired samples from the MCU to the PC, the UART peripheral is used. On the board, the user can use the RS232 DB9 connector to connect to a serial port on PC side, or it can use the USB port that creates a virtual serial port on the PC, thanks to the MCP2200 USB to TTL converter that is connected to the MCU.The RX pins of the MAX2323 and the MCP2200 are tightened together with the TX pin of the UART2 from the MCU. The user needs to select from jumperJ5 if the MCU receives data from MCP2200 or MAX2323. In firmware, the MCU is using DMA2 to do the transfer from MCU to the PC. To receive data from the PC through UART, the RX interrupt is used.
© 2011 Microchip Technology Inc. DS51994A-page 11
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
FIGURE 2-1: dsPIC33 Example Flow Chart.
2.1.3 PC SoftwareThe PC receives the data and displays it on the MCP390x Data View. The program can display and process only two channels at the same time. To select the desired channels, the SW4 (RD13) must be pressed.
S ta r t
In it ia lis a tio n
G e t s a m p le s in to b u ffe r [5 1 2 ]
R e a d In te rn a l R e g is te rs
W a it fo r P C G U I c o m m a n d
C o m m a n d re c e iv e d
C h e c k v a lid ity
C o m m a n d v a lid
W r ite in te rn a l re g is te rs
S e n d s a m p le s fro m B u ffe r [5 1 2 ]
S e n d in te rn a l re g is te rs
S e n d F F T(n o t c o m p u te d h e re )
U p d a te c h a n n e ls s e le c tio n
Y E S
Y E S
N O
N O
Initialization
DS51994A-page 12 © 2011 Microchip Technology Inc.
Code Example
FIGURE 2-2: MCP3903 Data View Software - Main Screen.
Connectivity is done through the serial port. First, the user must identify the com port number from My computer > Manage > Device Manager. After this, in “VISA resource names”, users must find and select the correct com port number. Only after this, can the START button be pressed to begin the data acquisition.
FIGURE 2-3: MCP3903 Data View Software - Registers and Settings Screen.
From the Edit menu, the user can open the Registers and Settings window to control the internal registers of the MCP3903, the sampling speed of the ADC or if any averaging should be done on the acquired samples.From the buffer length, the user can select the amount of data that will be processed. The maximum length is 512. From the Sampling Speed Control, the user can change the sampling speed of the ADC. By writing a lower value, the sampling speed is increased, and for higher values it is decreased. The accurate value of the sampling speed is indicated in the Sampling speed indicator.If the user wants to investigate the effect of averaging on the performance indicator, the desired value can be written in the “Averages” control. It must be noted that the processed buffer will decrease by a factor equal to the value of the average.The Write Register and Read Register tabs are used to set the internal registers of the MCP3903. With the Write Register tab they are written and with the Read Register tab, the user can check the settings of the registers.
© 2011 Microchip Technology Inc. DS51994A-page 13
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
The Waveform Graphs will show the signal in Time domain, while the Signal Spectrum graphs shows the signal in Frequency domain. From the Graphs menu, under the Signal Spectrum option, the user can find the Switch Y-axis scale option. From here, it is possible to change the Y axis of the Signal Spectrum in linear scale or in logarithmic scale. The spectrum signal information is obtained by performing a Fast Fourier transformation over the Time domain signal. This Fourier transformation can be done after the signal has been windowed. For this, the user must select the type of window from the Window control on the lower area of the main window.The Histogram Graph can be used to investigate the distribution of the codes. This is especially helpful to check if a DC signal distribution is Gaussian. From the Graphs menu, under the Histogram option, the user can Change the number of bits, with the default being 40.The indicators from the lower area of the program indicate other performance parameters of the ADC. The main one is SINAD and related to it is Effective Number of Bits (ENOB), used to indicate the AC signal performance. The ENOB value is computed according to the formula below:
EQUATION 2-1:
For DC signals, the Noise RMS signal in µV is displayed. For AC signals, the indicator will show the RMS value of the signal.
ENOB SINAD 1.76–6.02
------------------------------------=
DS51994A-page 14 © 2011 Microchip Technology Inc.
MCP3903 ADC EVALUATION BOARDFOR 16-BIT MCUs USER’S GUIDE
Appendix A. Schematics and Layouts
A.1 INTRODUCTIONThis appendix contains the following schematics of the MCP3903 ADC Evaluation Board for 16-Bit MCUs.
• Schematic - Analog• Schematic - LCD and UART• Schematic - USB and Memory• Schematic - Microcontroller (MCU)• Schematic - PIM Module• Schematic - Power• Board - Top Trace and Top Silk• Board - Bottom Trace and Bottom Silk• Board - Layer #2 VDD• Board - Layer #3 GND• Board - Top Silk and Pads• Board - Bottom Silk and Pads
© 2011 Microchip Technology Inc. DS51994A-page 15
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
A.2 SCHEMATIC - ANALOG
C
of1
4
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CD
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Filena
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Size
Title
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/10
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CD
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C_M
PU_M
EMORY.SC
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Eng:
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:
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Date
Rev
ision Notes
M4
GND
GND
GND
GNDA
GNDA
GNDA
GG
GNDA
-+GNDA
GNDA
-+
+5V
3903
_CS
3903
_SDO
3903
_SCK
3903
_SDI
GNDA3903
_RES
ET
1
3903
_CLK
IN2
GND
GNDA
GNDA
GNDA
C
GNDA
GNDA
-+-+GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
3903
_DR
+3.3V
DNP
R94 DNP
R93
1P5A
2P5B
3P4C
1P3A
2P3B
2P2B
3P2C
2P1B
3P1C
1P0A
3P0C
GNDA
GNDA
GNDA
GNDA
+-
1KR97
1KR98
GNDA
100
R56
100
R55
100
R69
100
R5410
0R68
3903
_DR
RF3
/U1T
X
RF2
/U1R
X
3903
_CS
3903
_SCK
3903
_SDO
3903
_RES
ET
1
1P4A
3P5C
2P4B
1P2A
3P3C
1P1A
2P0B
GNDA
GNDA
1 3 5
2 4 6
JP2
HDR3X
2
GNDA
GNDA
GNDA
1 3 5
2 4 6
JP7
HDR3X
2
GNDA
GNDA
GNDA
GNDA
-
1KR121KR11
+
1KR7
68NFC8
GNDA
GNDA
GNDA
DNPR10GNDA
GNDA
GNDA
1KR951KR10
0
GNDA
GNDA
68NF
C7
GNDA
DNP
R9
GNDA
100N
F
C46
100N
F
C44
100
R63
3903
_DR
3903
_SDI
10k
R57
GNDA
GNDA
GNDA
GNDA
1 3 5
2 4 6
JP1
HDR3X
2
1 3 5
2 4 6
JP8
HDR3X
2
1 3 5
2 4 6
JP10
HDR3X
2
1 3 5
2 4 6
JP9
HDR3X
2
68NF
C10
DNPR6
1KR5
68NF
C52
68NF
C51
DNPR87
DNPR84
68NF
C56
68NF
C55
DNPR99
DNPR96
68NF
C9
DNP
R8
68NF
C54
68NF
C53
DNP
R62 DNP
R52
68NF
C58 68NF
C57
GNDA
JP6
18PF
C38
18PF
C37
P22
P44
P66
P88
P10
10
P12
12
P14
14
P16
16P1
515
P13
13
P11
11
P99
P77
P55
P33
P11
P8
HDR2X
8-O/E
CH5+
CH4+
CH3+
GND
CH2+
CH0-
CH0+
1KR88
10R60
1MR40
ADC CLO
CK SE
LECT
3/31
/10
CH4-
CH5-
GND
CH2-
CH3-
CH1+
CH1-
DNP
R2DNP
R1DNP
R3
DNP
R92
1KR831KR85
DNP
R91D
NP
R10
4
DNP
R10
3
10R59
ADC/M
PU/M
EMORY
3.57
9545
MHZ
X2
1 3 5
2 4 6
JP5
HDR3X
2
100
R43
DNP
R4
DNP
R90 DNP
R89
1KR86
DNP
R10
2
DNP
R10
1
REF
IN+
14
CH4-
11
CH3-
8
CH1+
5
CH0+
2
REF
IN-15
DRA
18
OSC
121
SCK
24
RES
ET27
CH5-
12
CH5+
13
CH2+
6
CH2-
7
CH3+
9
CH4+
10
AVDD
1
CH0-
3
CH1-
4
DGND
17
AGND
16
DRB
19
DRC
20
OSC
222
CS
23
SDO
25
SDI26
DVD
D28
U9
MCP39
03_S
O28
100N
F
C45
MCP39
03 Eva
l Boa
rd fo
r 16-bit M
CU
Initial R
elea
se Build
NET
0008
3
NET
0008
8
NET
0009
3
+3.3V
DS51994A-page 16 © 2011 Microchip Technology Inc.
Schematics and Layouts
A.3 SCHEMATIC - LCD AND UART
Rev
5
AB
1
Size
Title
D
Eng:
3 421
AB
4321
3/18
/10
6
Date
LCD_E
XPLO
RER
16.SC
HDOC
C
Shee
t
Drawn by
:
of
Rev
CD
B.Po
pescu
A.Hap
enciuc
Des
criptio
n
Filena
me:
B
Date:M
5
Initial D
esign
2
+3.3V
+5V
VEE
+3.3V
RB1
5/PM
PA0
RD5/PM
PRD
RD4/PMPWR
GNDA
RB1
5/PM
PA0
RD5/PM
PRD
RD4/PMPWR
TXRXRC14
RD15
/U1R
TS
TXRX
+3.3V
+3.3V
VEE +3.3V
GNDA
GNDA
GNDA
GNDA
GNDA
RE7
/PMPD
7
RE6
/PMPD
6
RE5
/PMPD
5
RE3
/PMPD
3
RE2
/PMPD
2
RE1
/PMPD
1
RE0
/PMPD
0
RE7
/PMPD
7
RE6
/PMPD
6
RE5
/PMPD
5
RE4
/PMPD
4
RE2
/PMPD
2
RE1
/PMPD
1
RE0
/PMPD
0
RD14
/U1C
TS
RC13
RF3
/U1T
X
U6R
X
1.3KR16
10K
R15
100N
F
C12
GNDA
NONE
R17
NONE
R18
RE4
/PMPD
4
RE3
/PMPD
3
100N
F
C34
100NF
C36
1KR32
GNDA
100N
F
C30
GNDA
GNDA
1KR33
100N
F
C35
MCP3
903 Ev
al Boa
rd fo
r 16-bit M
CU
3/31
/10
GND
1
VCC
2
RS
4
E6
R/W
5
VC3
DB7
14
DB4
11
DB2
9
DB5
12
DB3
10
DB1
8DB0
7
DB6
13
LCD2
LCD_T
M16
2JCAWG1
100N
F
C33
1 6 2 7 3 8 4 9 5
J3
DB9R
F
DB7
11
DB4
8
DB2
6
E3
DB1
5DB0
4
DB3
7
DB5
9
DB6
10
GND1
15
VCC
13
RS
1R/W
2
VEE
14
GND
12
LCD1
LCD_2
X16_
BOTH
LCD/EXPLO
RER 16
INVA
LID
11
T1IN
13
R1IN
16
GND
18
R1O
UT
15
T1OUT
17
T2IN
12
FORCEO
N14
VCC
19FO
RCEO
FF20
R2O
UT
10
T2OUT
8
C2+
5
V+3
C1-
4
C2-
6
V-
7
R2IN
9
EN1
C1+
2
SN75
C32
23PWU6
NET
0005
2
NET
0006
3
NET
0006
4
NET
0006
5
NET
0006
6
NET
0006
7
NET
0006
8
NET
0007
1
NET
0007
3
NET
0007
4
NET
0007
5
© 2011 Microchip Technology Inc. DS51994A-page 17
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
A.4 SCHEMATIC - USB AND MEMORY
C
of3
4
AB
CD
E
Filena
me:
Size
Title
6
A.Hap
enciuc
F
42
1
Date:
3/18
/10
B.Po
pescu
31
AB
CD
E
REV
F
2
Shee
tds
PIC33
.SCHDOC
Eng:
3
Drawn by
:
3
Date
Rev
ision Notes
M4
+3.3V
+3.3V
+3.3V
RD13
RD6
RD7
PIC24
_MCLR
GNDA
+3.3V
PIC24
_MCLR
RB0
/AN0
RB1
/AN1
RB2
/SS1
/AN2
RB4
/AN4
RB5
/AN5
RE9
/INT2
RE8
/INT1
RA0
/TMS
USB
_SS
PIC24
_MCLR
USB
_SDO
USB
_SDI
RC4
RC3
RC2
RE6
/PMPD
6
RE7
/PMPD
7
RE5
/PMPD
5
RG15
+3.3V
+3.3V
RB6/AN6/PGC
RB7/AN7/PGD
RE4/PMPD4
RE3/PMPD3
RA10/PMPA6
+3.3V
RG13
RB8/AN8
RG14
RE1/PMPD1
RB10/PMPA13
RB9/AN9
RA7
RE0/PMPD0
ENVR
EG
+3.3V
RG0
RG1
RA1/TCK
RF13/U2RTS
RF1
RF0
RB12/PMPA11VDDCORE
RB14/PMPA1
RB15/PMPA0
RD6
RD5/PMPRD
+3.3VRD13
RD4/PMPWR
VDDCORE
RD15/U1RTS
RF4/PMPA9/U2RX
RD3/PMPBE
RD2
RF5/PMPA8/U2TXRD1GNDA
+3.3V
+3.3V
RF3
/U1T
X
RF2
/U1R
X
RA2
/SCL2
RA3
/SDA2
RD8
RA1
5/INT4
RD9
RC13
RC14
+3.3V+3.3V
3903
_SDI
3903
_SCK
3903
_CS
3903
_RES
ET
3903
_CLK
IN +3.3V+3.3V
GNDA+3.3V+3.3V
+3.3V+3.3V
+3.3V+3.3V
+3.3V
RG3/SD
A1
RG2/SC
L1
+3.3V
OSC
1
OSC
2
RH6
GNDA+3.3V+3.3V
+3.3V
GNDA
+3.3V
+3.3V
RB3
/AN3
USB
_SCK
+3.3V G
NDA
3903
_SDO
3903
_DR
100
R39
RA9/PMPA7
GNDA
GNDARA10/PMPA6
GNDA
GNDA
GNDA
1KR14
1KR24
RA9/PMPA7
RG12
RE2/PMPD2
RB11/PMPA12
RF12/U2CTS
RA6
ENVREG
GNDA
RB13/PMPA10
RD14/U1CTS
RD7
RD12
GNDA
0.0
R26
GNDA
NONE
R29
GNDA
GNDA
+3.3V
GNDA
RH7
GNDA
RD8
GNDA
SW4
B3S-10
02P
GNDA
SW1
B3S-10
02P
GNDA
1KR20
1KR31
GNDA
NONE
R25
0.0
R22
GNDA
100N
F
C24
100N
F
C28
GNDA
100N
F
C20
100N
F
C27
GNDA
2.2K
R27
18PF
C31
GNDA
GREE
N
D6
SML-51
2MW
100N
F
C14
GNDA
18PF
C32
REDD7
GM1J
R35
200A
E
100
R38
SW3
B3S-10
02P
SW2
B3S-10
02P
10K
R21
GNDA
100N
F
C26
100N
F
C22
100N
F
C25
1
100N
F
C17
1K R37
1K R36
GNDA
GNDA
GNDA
1MR34
3/31
/10
PIC24
ICD
100N
F
C11
100N
F
C13
GNDA10
0NF
C21
GNDA 4.7K
R23
4.7K
R30
GNDA
dsPIC
33
100N
F
C16
GNDA2.
2K R28
NONE
R35
7.37
28MHZ
X3
+
47UF
C23
100N
F
C15
5 631 2 4P6
HDR6X
1
4.7K
R13
4.7K
R1910
0NF
C29
100N
F
C19
100N
F
C18
MCP39
03 Eva
l Boa
rd fo
r 16-bit M
CU
dsPIC33
FJ25
6GP7
10-I/PF
Initial Sch
ematic Des
ign
PGD/OCFA/RB727
PMPA7/RA928
PMPD3/RE399
PMPD2/RE298
AVDD30
RG1296
C1OUT/AN8/RB832
PMPD1/RE194
TDO/AN11/RB1135
CVREF/AN10/RB1034
RA691
RA792
VDD37
RG189
U2RTS/RF1339
U2CTS/RF1240
RF087
VREG86
AN13/RB1342
SCL2/CN16/RD784
PMPA0/AN15/CN12/RB1544
PMPRD/CN14/RD582
CN20/RD1447
VDD46
IC5/RD1279
CN19/RD1380
U2RX/RF449
RD277
INT1
/RE8
18
VSS
15
VDD
16
MCLR
13
T4CK/RC3
8
T2CK/RC1
6
RG15
1
U1T
X/RF3
51
SDO1/RF8
53SD
I1/RF7
54
SDA1
/RG3
56
RA2
58
TDO/RA5
61
TDI/R
A460
OSC
1/CLK
I/RC12
63
VSS
65INT3
/RA1
466
IC1/RTC
C/RD8
68
IC3/RD10
70
RC13
73
OC1/RD0
72
VSS
75
RA0
/TMS
17
INT2
/RE9
19
T3CK/RC2
7
T5CK/RC4
9
VDD
2
U1R
X/RF2
52
SCL1
/RG2
57
RA3
59
VDD
62
SCK1
/INT0
/RF6
55
INT4
/RA1
567
IC2/RD9
69
IC4/RD11
71
OSC
2/CLK
0/RC15
64
RC14
74
AVSS31
PGC2/RB626
PMPA6/RA1029
RG1495
RG1397
PMPD4/RE4100
VSS36
C2OUT/AN9/RB933
TCK/RA138
AN12/RB1241
RF188
VCAP/VDDCORE85
RG090
PMPD0/RE093
VSS45
PMPA1/AN14/RB1443
CN21/RD1548
U2TX/RF550
RD176
SS1/RD378
PMPWR/OC5/RD481
SDA2/CN15/RD683
PGD1/AN
0/RB0
25
C2IN-/A
N2/SS
1/RB2
23C2IN+/AN
3/CN5/RB3
22
C1IN+/AN
5/CN7/RB5
20
PMPA
4/SD
I2/CN9/RG7
11PM
PA5/SC
K2/CN8/RG6
10
PMPD
5/RE5
3
PMPD
6/RE6
4
PGC1/AN
1/CN3/RB1
24
PMPA
2/SS
2/CN11
/RG9
14
C1IN-/A
N4/CN6/RB4
21
PMPD
7/RE7
5
PMPA
3/SD
O2/CN10
/RG8
12
U7
DS51994A-page 18 © 2011 Microchip Technology Inc.
Schematics and Layouts
A.5 SCHEMATIC - MICROCONTROLLER (MCU)
C
of2
4
AB
CD
E
Filena
me:
Size
Title
6
A.Hap
enciuc
F
42
1
Date:
3/18
/10
B.Po
pescu
31
AB
CD
E
REV
F
2
Shee
tMCP2
200 _ USB
.SCHDOC
Eng:
3
Drawn by
:
2
Date
Rev
ision Notes
M4
USB
_+5V
RF3/U1TX
U6RX
RF2/U1RX
GNDA
5J2
E
4J2
D
2J2
B
1J2
A
2
GNDA
470
R41
470
R47
GNDA
GNDA
0.1u
F
C41
J5HDR1X
3
3J2
C
USB
DATA
VIEW PORT
0.1u
F
C39
1
10/26/10
3/31
/10
12MHz
X1
RES
ONAT
OR-C
STCE
MCP22
00
2 1
43
GREEN
RED
D1
470
R44
MCP39
03 Eva
l Boa
rd fo
r 16-bit M
CU
MCP22
00 com
mun
ication
GP4
GP3
GP7
/TxL
EDGP6
/RxL
ED
OSC
1OSC
2
CTS RX
GP0
/SSP
ND
GP1
/USB
CFGD+ D-
TXGP5
RST
VDD
RTS
GP2
VUSBVSS
U5
MCP2
200_
SSOP2
0
Initial Sch
ematic Des
ign
D-
D+
U5-RX
USB
_+5V
© 2011 Microchip Technology Inc. DS51994A-page 19
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
A.6 SCHEMATIC - PIM MODULE
C
of4
4
AB
CD
E
Filena
me:
Size
Title
6
A.Hap
enciuc
F
42
1
Date:
3/18
/10
B.Po
pescu
31
AB
CD
E
REV
F
2
Shee
tPIM M
ODULE
.SCHDOC
Eng:
3
Drawn by
:
4
Date
Rev
ision Notes
M4
USB
_SS
USB
_SDI
USB
_SDO
USB
_SCK
RB0
/AN0
RB1
/AN1
RB2
/SS1
/AN2
RB4
/AN4
RB3
/AN3
RB5
/AN5
RE9
/INT2
RE8
/INT1
RA0
/TMS
PIC24
_MCLR
RC4
RC3
RC2
RE7
/PMPD
7
RE6
/PMPD
6
RG15
+3.3V
+3.3V
RB6/AN6/PGC
RB7/AN7/PGD
RE4/PMPD4
RE3/PMPD3
RA10/PMPA6
+3.3V
RG13
RB8/AN8
RG14
RE1/PMPD1
RB10/PMPA13
RB9/AN9
RA7
RE0/PMPD0
+3.3V
RG0
RG1
RA1/TCK
RF13/U2RTS
RF1
RF0
RB12/PMPA11VDDCORE
RB14/PMPA1
RB15/PMPA0
RD6
RD5/PMPRD
+3.3VRD13
RD4/PMPWR
RD15/U1RTS
RF4/PMPA9/U2RXRD2
RD3/PMPBE
RF5/PMPA8/U2TXRD1
+3.3V
RF3
/U1T
X
RF2
/U1R
X
RG3/SD
A1
RG2/SC
L1
RA2
/SCL2
RA3
/SDA2
OSC
1
OSC
2
RD8
RA1
5/INT4
RD9
RC14
3903
_SDI
3903
_SCK
3903
_SDO
3903
_CS
3903
_DR
3903
_CLK
IN
GNDA+9V
+5V
+3.3V
GNDA+5V
+9V
+3.3V
GNDA
RE6
/PMPD
6
RE4
/PMPD
4
RE2
/PMPD
2
RE0
/PMPD
0
RD12
RD8
RD6
RD2
RD4/PMPWR
3903
_CLK
IN
RC13
RC3
3903
_DR
RB1
2/PM
PA11
RB1
0/PM
PA13
RB5
/AN5
RB6
/AN6/PG
C
3903
_CS
RA6
RA0
/TMS
RG12
RG15
RF1
2/U2C
TS
RA1
5/INT4
RA9
/PMPA
7
RB8
/AN8
RG8/PM
PA3/SD
O2
RG7/PM
PA4/SD
I2
RG9/PM
PA2/SS
2
RG1
RG0
RD14
/U1C
TS
RE9
/INT2
RB3
/AN3
3903
_SDI
3903
_SCK
3903
_SDO
RB2
/SS1
/AN2
RE7
/PMPD
7
RE5
/PMPD
5
RE3
/PMPD
3
RE1
/PMPD
1
RD13
RD9
RD7
RD1
RD3/PM
PBE
RD5/PM
PRD
RC14
RC4
RC2
RB1
3/PM
PA10
RB1
1/PM
PA12
PIC24
_MCLR
RB7
/AN7/PG
D
RA7
RA1
/TCK
3903
_RES
ET
RG14
RG13
RG1+9
V
+5V
+3.3V
RF1
3/U2R
TS
RA1
0/PM
PA6
RB9
/AN9
RA3
/SDA2
RA2
/SCL2
RF4
/PMPA
9/U2R
X
RF1
RF0
+5V
+9V
+3.3V
RE8
/INT1
RD15
/U1R
TS
RB4
/AN4
RG3/SD
A1
RG2/SC
L1
RF3
/U1T
X
RF2
/U1R
X
GNDA+9V
+5V
+3.3V
GNDA+5V
+9V
+3.3V
GNDA
RE6
/PMPD
6
RE4
/PMPD
4
RE2
/PMPD
2
RE0
/PMPD
0
RD12
RD8
RD6
RD2
RD4/PMPWR
3903
_CLK
IN
RC13
RC3
3903
_DR
RB1
2/PM
PA11
RB1
0/PM
PA13
RB5
/AN5
RB6
/AN6/PG
C
3903
_CS
RA6
RA0
/TMS
RG12
RG15
RF1
2/U2C
TS
RA1
5/INT4
RA9
/PMPA
7
RB8
/AN8
RG8/PM
PA3/SD
O2
RG7/PM
PA4/SD
I2
RG9/PM
PA2/SS
2
RG1
RG0
RD14
/U1C
TS
RE9
/INT2
RB3
/AN3
3903
_SDI
3903
_SCK
3903
_SDO
RB2
/SS1
/AN2
RE7
/PMPD
7
RE5
/PMPD
5
RE3
/PMPD
3
RE1
/PMPD
1
RD13
RD9
RD7
RD1
RD3/PM
PBE
RD5/PM
PRD
RC14
RC4
RC2
RB1
3/PM
PA10
RB1
1/PM
PA12
PIC24
_MCLR
RB7
/AN7/PG
D
RA7
3903
_RES
ET
RA1
/TCK
RG14
RG13
RG1+9
V
+5V
+3.3V
RF1
3/U2R
TS
RA1
0/PM
PA6
RB9
/AN9
RA3
/SDA2
RA2
/SCL2
RF4
/PMPA
9/U2R
X
RF1
RF0
+5V
+9V
+3.3V
RD15
/U1R
TS
RE8
/INT1
RB4
/AN4
RG3/SD
A1
RG2/SC
L1
RF3
/U1T
X
RF2
/U1R
X
RE5
/PMPD
5
GNDA
RC13
3903
_RES
ET
+3.3V
GNDA
RB1
4/PM
PA1
RG6/PM
PA5/SC
K2
RB0
/AN0
+3.3V
RB1
5/PM
PA0
RG0
RF5
/PMPA
8/U2T
X
RB1
/AN1
+3.3V
GNDA
RB1
4/PM
PA1
RG6/PM
PA5/SC
K2
RB0
/AN0
+3.3V
RB1
5/PM
PA0
RG0
RF5
/PMPA
8/U2T
X
RB1
/AN1
GNDA
GNDA
RA9/PMPA7RE2/PMPD2
RB11/PMPA12
RG12
RA6
RB13/PMPA10
RF12/U2CTS
RD14/U1CTS
RD7
ENVREG
RD12
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
1
GNDA
3/31
/10
PIM
MODLU
E
1039993 958985797569 716561555145 4741372721 23171373 97 10177 81 83 87 9157 59 67 7339 43 49 5319 25 29 33 351 5 9 11 15 117
119
118
120
113
114
109
110
104
100
94 969086807670 726662565246 4842382822 24181484
115
116
107
105
98 102
106
108
111
112
8478 82 88 9258 60 68 7440 44 50 5420 26 30 34 362 6 10 12 16
J4
MEC1-160-02-L-D
1039993 958985797569 716561555145 4741372721 23171373 97 10177 81 83 87 9157 59 67 7339 43 49 5319 25 29 33 351 5 9 11 15 117
119
118
120
113
114
109
110
104
100
94 969086807670 726662565246 4842382822 24181484
115
116
107
105
98 102
106
108
111
112
8478 82 88 9258 60 68 7440 44 50 5420 26 30 34 362 6 10 12 16
P9 MEC1-160-02-L-D MATE
MCP39
03 Eva
l Boa
rd fo
r 16-bit M
CU
Initial Sch
ematic Des
ign
PGD/OCFA/RB727
PMPA7/RA928
PMPD3/RE399
PMPD2/RE298
AVDD30
RG1296
C1OUT/AN8/RB832
PMPD1/RE194
TDO/AN11/RB1135
CVREF/AN10/RB1034
RA691
RA792
VDD37
RG189
U2RTS/RF1339
U2CTS/RF1240
RF087
VREG86
AN13/RB1342
SCL2/CN16/RD784
PMPA0/AN15/CN12/RB1544
PMPRD/CN14/RD582
CN20/RD1447
VDD46
IC5/RD1279
CN19/RD1380
U2RX/RF449
RD277
INT1
/RE8
18
VSS
15
VDD
16
MCLR
13
T4CK/RC3
8
T2CK/RC1
6
RG15
1
U1T
X/RF3
51
SDO1/RF8
53SD
I1/RF7
54
SDA1
/RG3
56
RA2
58
TDO/RA5
61
TDI/R
A460
OSC
1/CLK
I/RC12
63
VSS
65INT3
/RA1
466
IC1/RTC
C/RD8
68
IC3/RD10
70
RC13
73
OC1/RD0
72
VSS
75
RA0
/TMS
17
INT2
/RE9
19
T3CK/RC2
7
T5CK/RC4
9
VDD
2
U1R
X/RF2
52
SCL1
/RG2
57
RA3
59
VDD
62
SCK1
/INT0
/RF6
55
INT4
/RA1
567
IC2/RD9
69
IC4/RD11
71
OSC
2/CLK
0/RC15
64
RC14
74
AVSS31
PGC2/RB626
PMPA6/RA1029
RG1495
RG1397
PMPD4/RE4100
VSS36
C2OUT/AN9/RB933
TCK/RA138
AN12/RB1241
RF188
VCAP/VDDCORE85
RG090
PMPD0/RE093
VSS45
PMPA1/AN14/RB1443
CN21/RD1548
U2TX/RF550
RD176
SS1/RD378
PMPWR/OC5/RD481
SDA2/CN15/RD683
PGD1/AN
0/RB0
25
C2IN-/A
N2/SS
1/RB2
23C2IN+/AN
3/CN5/RB3
22
C1IN+/AN
5/CN7/RB5
20
PMPA
4/SD
I2/CN9/RG7
11PM
PA5/SC
K2/CN8/RG6
10
PMPD
5/RE5
3
PMPD
6/RE6
4
PGC1/AN
1/CN3/RB1
24
PMPA
2/SS
2/CN11
/RG9
14
C1IN-/A
N4/CN6/RB4
21
PMPD
7/RE7
5
PMPA
3/SD
O2/CN10
/RG8
12
MOD1
PIM 100
-PIN
DS51994A-page 20 © 2011 Microchip Technology Inc.
Schematics and Layouts
A.7 SCHEMATIC - POWER
Rev
6
AB
1
Size
Title
D
Eng:
3 421
AB
4321
3/18
/10
6
Date
POWER
.SCHDOC
C
Shee
t
Drawn by
:
of
Rev
CD
B.Po
pescu
A.Hap
enciuc
Des
criptio
n
Filena
me:
B
Date:M
6
Initial D
esign
4
GNDA
+9V
GNDA
USB
_+5V
USB
GNDA
+3.3V +5V
GNDA
GNDA
GNDA
100
R58
+3.3V
POWER
GNDA
1P11
A
EXT +5
VGNDA
GNDA
32 1
J1
RAPC72
2
+9V IN
10UF
C4
2P11
B
100N
F C3 G
NDA
POWER
+9V IN
GNDA
100N
F
C5
POWER
BLUE
D5
GM1B
5525
0AC
GNDA
GNDAGND
TP1
PJ-20
2-30
4.7U
F
C2
GND1
IN3
OUT
2
U3
LM11
17-3.3
10UF
C1
EXT +5
V
POWER
AK
D3
MBR
0520
LT1
135
246
JP3
HDR3X
2
10UH
L1
4.7U
F
C6
MCP3
903 Ev
al Boa
rd fo
r 16-bit M
CU
3/31
/10
GND1
IN3
OUT
2
U1
LM11
17-5.0
EXT_
+5V
© 2011 Microchip Technology Inc. DS51994A-page 21
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
A.8 BOARD - TOP TRACE AND TOP SILK
A.9 BOARD - BOTTOM TRACE AND BOTTOM SILK
DS51994A-page 22 © 2011 Microchip Technology Inc.
Schematics and Layouts
A.10 BOARD - LAYER #2 VDD
A.11 BOARD - LAYER #3 GND
© 2011 Microchip Technology Inc. DS51994A-page 23
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
A.12 BOARD - TOP SILK AND PADS
A.13 BOARD - BOTTOM SILK AND PADS
DS51994A-page 24 © 2011 Microchip Technology Inc.
MCP3903 ADC EVALUATION BOARDFOR 16-BIT MCUs USER’S GUIDE
Appendix B. Bill of Materials (BOM)
TABLE B-1: BILL OF MATERIALS (BOM)
Qty Reference Description Manufacturer Part Number
2 C1,C4 CAP CER 10UF 16V Y5V 0805 TDK Corp. C2012Y5V1C106Z
25 C11<>C22 C24<>C30 C33,C34,C35 C36,C39,C41
CAP CER .10UF 25V X7R 10% 0603 TDK Corp. C1608X7R1E104K
2 C2,C6 CAP CER 4.7UF 25V Y5V 0805 TDK Corp. C2012Y5V1E475Z
1 C23 CAPACITOR TANT 47UF 6.3V 20% SMD Kemet® T491A476M006AT
5 C3,C5,C44 C45,C46
CAP CER .10UF 25V X7R 10% 0805 TDK Corp. C2012X7R1E104K
4 C31,C32 C37,C38
CAP CER 18PF 50V C0G 5% 0603 TDK Corp. C1608C0G1H180J
12 C7,C8,C9, C10 C51<>C58
CAP CER 68000PF 25V C0G 5% 1206 TDK Corp. C3216C0G1E683J
1 D1 LED 2X1.2MM RD/GN WTR CLR SMD Kingbright Corp. APHBM2012SURKCGKC
1 D3 DIODE SCHOTTKY 20V 0.5A SOD123 ON Semi. MBR0520LT1G
1 D5 LED BLUE 470NM CLEAR LENS (0603 Blue)
Para Light Corp. L-C191LBCT-U1
1 D6 LED 570NM GRN WHT/DIFF 0603 SMD Rohm Semi. SML-512MWT86
1 D7 LED RED 470NM CLEAR LENS (0603 Red)
Para Light Corp. L-C192KRCT-U1
4 Ea. Conner of PCB
STANDOFF HEX .500/4-40THR NYLON Keystone 1902C
4 Ea. Conner of PCB
SCREW MACH PHIL 4-40X3/8 NYLON Building Fasteners NY PMS 440 0038 PH
1 J1 CONN POWERJACK MINI .08" R/A T/H Switchcraft® RAPC722X
1 J2 Mini USB Type B Surface Mount Samtec MUSB-05-S-B-SM-A
1 J3 CONN D-SUB RCPT R/A 9POS 15GOLD Tyco Electronics 1734354-2
1 J4 "DO NOT INSTALL" 120-pin MINI EDGE CARD SOCKET
Samtec MEC1-160-02-L-D-A
1 J5 3 x 1 Header 2.54mm - -
8 JP1,JP2,JP3 JP5,JP7,JP8 JP9,JP10
3 X 2 Header 2.54mm on center 6 mm/2.5mm
Samtec TSW-103-07-G-D
1 JP6 2 x 1 Header 2.54mm - -
9 Jumper Shunts CONN JUMPER SHORTING TIN Sullins Connector Solutions
STC02SYAN
Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components.
© 2011 Microchip Technology Inc. DS51994A-page 25
Bill of Materials (BOM)
1 L1 Shielded 10uH Power Inductor 0805 Coilcraft 0805PS-103KLC
1 LCD1 "DO NOT INSTALL" - -
1 LCD2 16X2 FTN Reflective No. BLWT COG 3V Tianma TM162JCAWG1
4 MOD1 25 X 1 Header 1.27mm on center Samtec MTMS-125-01-G-S-230
6 P0,P1,P2,P3 P4,P5
CONN TERM BLK PLUG 6A 3.5MM 3POS Keystone 8723
1 P0,P1,P2,P3 P4,P5,P11
TERM BLK PIN HEADER 24Pin Pos One 24 Pin Header for 1 Board (20 pins needed)
Keystone 8724
1 P11 CONN TERM BLK PLUG 6A 3.5MM 2POS Keystone 8722
1 P6 6 x 1 Header 2.54mm - -
1 P8 8 X 2 CONN HEADER 8POS .100" DUAL TIN
Samtec TSW-104-17-T-D
1 P9 "DO NOT INSTALL” - -
1 PCB RoHS Compliant Bare PCB, MCP3901 Eval. Board for 16-bit MCU
- 104-00221
24 R1,R2,R3,R4 R6,R8,R9 R10,R16, R52,R62 R84,R87 R89<>R94 R96,R99 R101<>R104
(0805) "DO NOT INSTALL" - -
4 R13,R19 R23,R30
RES 4.70K OHM 1/10W 1% 0603 SMD Rohm Semi. MCR03EZPFX4701
8 R14,R20, R24, R31 R32,R33 R36, R37
RES 1.00K OHM 1/10W 1% 0603 SMD Rohm Semi. MCR03EZPFX1001
3 R21,R57 RES 10.0K OHM 1/10W 1% 0603 SMD Rohm Semi. MCR03EZPFX1002
5 R17,R18,R25 R29,R35
(0603) "DO NOT INSTALL" - -
2 R15,R22,R26 RES 0.0 OHM 1/10W 5% 0603 SMD Rohm Semi. MCR03EZPJ000
2 R27,R28 RES 2.20K OHM 1/10W 1% 0603 SMD Rohm Semi. MCR03EZPFX2201
2 R34,R40 RES 1.00M OHM 1/10W 1% 0603 SMD Rohm Semi. MCR03EZPFX1004
10 R38,R39,R43,R54,R55,R56,R58 R63,R68,R69
RES 100 OHM 1/10W 1% 0603 SMD Rohm Semi. MCR03EZPFX1000
3 R41,R44,R47 RES 470 OHM 1/10W 5% 0603 SMD Panasonic ERJ-3GEYJ471V
7 R44,R70,R71, R72,R74,R75 R76
RES 100K OHM 1/10W 1% 0603 SMD Rohm Semi. MCR03EZPFX1003
TABLE B-1: BILL OF MATERIALS (BOM) (CONTINUED)
Qty Reference Description Manufacturer Part Number
Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components.
© 2011 Microchip Technology Inc. DS51994A-page 26
Bill of Materials (BOM)
12 R5,R7,R11 R12,R83,R85 R86,R88,R95 R97,R98 R100
RES 1.0K OHM .1% 1/4W 0805 SMD Susumu Co., LTD. RGH2012-2E-P-102-B
2 R59,R60 RES 10.0 OHM 1/8W 1% 0805 SMD Rohm Semi. MCR10EZHF10R0
4 SW1,SW2 SW3,SW4
SWITCH TACT 6MM 230GF H=4.3MM Omron Electronic Components - ECB Division
B3S-1002P
1 TP1 Wire Test Point 0.3" Length Components Corp. PJ-202-30
1 U1 IC REG LDO 800MA 5.0V SOT-223 National Semi. LM1117MP-5.0/NOPB
1 U3 IC REG LDO 800MA 3.3V SOT-223 National Semi. LM1117MP-3.3/NOPB
1 U6 IC DRVR/RCVR MLTCH RS232 20TSSOP Texas Instruments SN75C3223PWR
1 U7 "DO NOT INSTALL" - -
1 U9 IC ENERGY METER 28SSOP Microchip MCP3903
1 X2 CRYSTAL 3.579545MHZ 18PFFUND SMD
Abracon Corp. ABLS-3.579545MHZ-B2-T
TABLE B-1: BILL OF MATERIALS (BOM) (CONTINUED)
Qty Reference Description Manufacturer Part Number
Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components.
© 2011 Microchip Technology Inc. DS51994A-page 27
DS51994A-page 28 © 2011 Microchip Technology Inc.
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05/02/11