MCP3903
ADC Evaluation Board
for 16-Bit MCUs
User’s Guide
© 2011 Microchip Technology Inc.
DS51994A
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.
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and may be superseded by updates.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, 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
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.
DS51994A-page 2
© 2011 Microchip Technology Inc.
MCP3903 ADC EVALUATION BOARD
FOR 16-BIT MCUs 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. 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
© 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 BOARD
FOR 16-BIT MCUs USER’S GUIDE
Preface
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.
INTRODUCTION
This 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 LAYOUT
This 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.
© 2011 Microchip Technology Inc.
DS51994A-page 1
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description
Arial font:
Italic characters
Initial caps
Quotes
Underlined, italic text with
right angle bracket
Bold characters
N‘Rnnnn
Text in angle brackets < >
Courier New font:
Plain Courier New
Represents
Referenced books
Emphasized text
A window
A dialog
A menu selection
A field name in a window or
dialog
A menu path
MPLAB® IDE User’s Guide
...is the only compiler...
the Output window
the Settings dialog
select Enable Programmer
“Save project before build”
A dialog button
A tab
A number in verilog format,
where N is the total number of
digits, R is the radix and n is a
digit.
A key on the keyboard
Click OK
Click the Power tab
4‘b0010, 2‘hF1
Italic Courier New
Sample source code
Filenames
File paths
Keywords
Command-line options
Bit values
Constants
A variable argument
Square brackets [ ]
Optional arguments
Curly brackets and pipe
character: { | }
Ellipses...
Choice of mutually exclusive
arguments; an OR selection
Replaces repeated text
Represents code supplied by
user
DS51994A-page 2
Examples
File>Save
Press <Enter>, <F1>
#define START
autoexec.bat
c:\mcc18\h
_asm, _endasm, static
-Opa+, -Opa0, 1
0xFF, ‘A’
file.o, where file can be
any valid filename
mcc18 [options] file
[options]
errorlevel {0|1}
var_name [,
var_name...]
void main (void)
{ ...
}
© 2011 Microchip Technology Inc.
Preface
RECOMMENDED READING
This 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 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 (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 BOARD
FOR 16-BIT MCUs USER’S GUIDE
Chapter 1. Hardware Description
1.1
OVERVIEW
The 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:
DS51994A-page 6
MCP3903 ADC Evaluation Board for 16-Bit MCUs.
© 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”.
D6 D7
RA9/10
(Green)
CONTROL SWITCHES (X3)
RB8/9/10
RF2/U1RX
UART SERIAL TO PC COMMUNICATION
RF3/U1TX
OC1/RD0
DGND
DVdd
MCP3903
IC4/RD11
IC3/RD10
RA5
OSC2 OSC1
Clock Generation/
Phase Correction
AGND AVDD
INT
Vref
RESET
CH0+
CH0-
DR
CH1+
INT3/RA4
RA4
SCK1/RF6
SDI1/RF7
SDO1/RF8
CS
SCK
SPI Serial
Interface
Six Channels
Sigma-Delta
ADC
SDO
SDI
CH2+
CH2CH3+
CH3-
CH4+
CH4CH5+
CH5-
PIM Module
FIGURE 1-2:
CH1-
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).
© 2011 Microchip Technology Inc.
DS51994A-page 7
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
1.2.1
Using the Crystal X2
The 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:
CLKOUT
CLKIN
CLKIN
FIGURE 1-3:
1.2.2
XTAL
XTAL
PIM OC1
ADC Clock Selection Jumpers - External Crystal.
Driving the Clock with the PIM Module
The 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:
CLKOUT
CLKIN
CLKIN
FIGURE 1-4:
XTAL
XTAL
PIM OC1
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.
DS51994A-page 8
© 2011 Microchip Technology Inc.
Hardware Description
1.3
ANALOG INPUT STRUCTURE
Two 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.
Note:
To use an edge connector as a post connector, pull up the blue plastic top
to access the posts.
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 CONVERTER
The 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.
USB
MCP2200
PIM
Module
MCP3903
ADC
USB con
TX
RF6/SCK1
SCK
RX
RF7/SDI1
SDO
RF8/SDO1
SDI
RS232 Driver
RS232
FIGURE 1-5:
© 2011 Microchip Technology Inc.
RF3/U1TX
RF2/U1RX
RX
TX
Serial Communication Block Diagram.
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 BOARD
FOR 16-BIT MCUs USER’S GUIDE
Chapter 2. Code Example
2.1
DSPIC33 EXAMPLE DESCRIPTION
If 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 Communication
To 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 Communication
To 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
S ta r t
Initialization
In itia
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 r n a l R e g is te rs
W a it fo r P C G U I
com m and
C om m and
re c e iv e d
NO
YES
C h e c k v a lid ity
C o m m a n d v a lid
NO
YES
W r ite in te r n a l re g is te rs
S e n d s a m p le s fr o m B u ffe r [5 1 2 ]
S e n d in te r n a l re g is te r s
Send FFT
( 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
FIGURE 2-1:
2.1.3
dsPIC33 Example Flow Chart.
PC Software
The 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.
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:
SINAD – 1.76
ENOB = -----------------------------------6.02
For DC signals, the Noise RMS signal in µV is displayed. For AC signals, the indicator
will show the RMS value of the signal.
DS51994A-page 14
© 2011 Microchip Technology Inc.
MCP3903 ADC EVALUATION BOARD
FOR 16-BIT MCUs USER’S GUIDE
Appendix A. Schematics and Layouts
A.1
INTRODUCTION
This 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
DS51994A-page 16
4
3
P1A
CH1+
P5B
GND
A
P5C
CH5-
P5A
P4A
CH4-
CH5+
P4B
GND
P3A
CH3+
P4C
P3B
GND
CH4+
P3C
P2A
CH3-
CH2-
P2B
P1B
GND
GND
P1C
CH1-
P2C
P0A
CH0-
CH2+
P0B
GND
P0C
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
NET00088
GNDA
GNDA
GNDA
GNDA
GNDA
DNP
R2
GNDA
GNDA
DNP
R1
DNP
R4
GNDA
GNDA
DNP
R3
DNP
R92
DNP
R89
DNP
R90
GNDA
DNP
R91
DNP
R104
DNP
R101
C
G
GNDA
DNP
R102
NET00093
G
GNDA
DNP
R103
NET00083
JP10
JP7
JP2
6
4
6
5
2
3
HDR3X2
6
1
4
5
2
3
JP1
HDR3X2
4
5
2
3
1
HDR3X2
6
5
1
4
2
3
JP8
HDR3X2
6
1
4
5
2
3
1
6
HDR3X2
4
5
2
3
1
JP9
HDR3X2
+
R97
1K
R88
1K
R95
1K
R85
1K
R86
1K
-
R98
1K
R11
1K
R5
1K
R12
1K
GNDA
+
-
GNDA
+
R7
1K
R83
1K
GNDA
+
-
GNDA
+
-
GNDA
+
-
GNDA
R100
1K
C56
C52
C10
68NF
68NF
GNDA
GNDA
GNDA
C8
C51
68NF
68NF
B
B
GNDA
DNP
R6
DNP
R10
GNDA
GNDA
DNP
R84
DNP
R87
GNDA
GNDA
GNDA
DNP
R96
DNP
R99
GNDA
GNDA
C55
68NF
68NF
GNDA
GNDA
DNP
R8
DNP
R9
GNDA
GNDA
DNP
R52
DNP
R62
GNDA
GNDA
DNP
R93
DNP
R94
GNDA
GNDA
C9
68NF
68NF
C7
GNDA
GNDA
C53
68NF
68NF
C54
GNDA
GNDA
C57
68NF
68NF
C58
GNDA
C46
100NF
GNDA
C
C45
9
8
7
6
5
4
3
2
1
R60
10
14
13
12
11
10
100NF
GNDA
U9
MCP3903_SO28
REFIN+
CH5+
CH5-
CH4-
CH4+
CH3+
CH3-
CH2-
CH2+
CH1+
CH1-
CH0-
CH0+
AVDD
+5V
REFIN-
AGND
DGND
DRA
DRB
DRC
OSC1
OSC2
CS
SCK
SDO
SDI
RESET
DVDD
ADC/MPU/MEMORY
C
15
16
17
18
19
20
21
22
23
24
25
26
27
28
100
100
100
100
100
R68
GNDA
R56
R55
R69
R63
R54
100
C44
100NF
10
R59
+3.3V
GNDA
3903_DR
3903_CS
3903_SCK
3903_SDO
3903_SDI
D
3903_RESET
D
3903_DR
RF3/U1TX
RF2/U1RX
3903_DR
3903_CS
3903_SCK
3903_SDI
3903_SDO
3903_RESET
P8
P8
P6
P4
P2
P15 P16
P13 P14
P11 P12
P9 P10
P7
P5
P3
P1
16
14
12
10
8
6
4
JP6
JP5
HDR3X2
100
5
3
R57
GNDA
R43
6
4
E
10k
ADC CLOCK SELECT
1
2
2
HDR2X8-O/E
15
13
11
9
7
5
3
1
3903_CLKIN
1
2
E
+3.3V
1
C38
18PF
REV
GNDA
X2
1M
C
1
ADC_MPU_MEMORY.SCHDOC
M
3/18/10
Filename:
Date:
Size
F
Sheet
1 of
F
Date
6
4
3/31/10
B.Popescu
A.Hapenciuc
Drawn by:
Eng:
MCP3903 Eval Board for 16-bit MCU
18PF
C37
GNDA
Title
3.579545MHZ
R40
Initial Release Build
Revision Notes
4
3
2
1
A.2
2
1
CH0+
A
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
SCHEMATIC - ANALOG
© 2011 Microchip Technology Inc.
© 2011 Microchip Technology Inc.
4
3
+3.3V
+5V
C12
100NF
NET00052
+3.3V
GNDA
GNDA
1.3K
R16
10K
R15
A
VEE
R17
NONE
R18
NONE
GNDA
+3.3V
RB15/PMPA0
RD5/PMPRD
RD4/PMPWR
GNDA
VEE
RB15/PMPA0
RD5/PMPRD
RD4/PMPWR
1
2
3
4
5
6
15
12
13
14
1
2
3
GND
VCC
VC
RS
R/W
E
GND1
GND
VCC
VEE
RS
R/W
E
LCD1
LCD_TM162JCAWG1
LCD2
LCD_2X16_BOTH
B
14
13
12
11
10
9
8
7
11
10
9
8
7
6
5
4
Filename:
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
LCD_EXPLORER 16.SCHDOC
RE7/PMPD7
RE6/PMPD6
RE5/PMPD5
RE4/PMPD4
RE3/PMPD3
RE2/PMPD2
RE1/PMPD1
RE0/PMPD0
RE7/PMPD7
RE6/PMPD6
RE5/PMPD5
RE4/PMPD4
RE3/PMPD3
RE2/PMPD2
RE1/PMPD1
RE0/PMPD0
LCD/EXPLORER 16
B
C36
NET00067
C
C33
100NF
C34
GNDA
NET00068
NET00066
100NF
C
NET00071
RC13
RD14/U1CTS
NET00065
NET00073
NET00064
NET00063
C35
100NF
GNDA
10
9
8
7
6
5
4
3
2
1
RF3/U1TX
U6RX
R2OUT
R2IN
T2OUT
V-
C2-
C2+
C1-
V+
C1+
EN
R33
1K
R32
1K
INVALID
T2IN
T1IN
FORCEON
R1OUT
R1IN
T1OUT
GND
VCC
FORCEOFF
SN75C3223PW
U6
1
Rev
20
11
12
13
14
15
16
17
18
19
TX
Date:
B
Size
Title
RX
RC14
NET00075
GNDA
NET00074
+3.3V
C30
100NF
GNDA
Initial Design
5
9
4
8
3
7
2
6
1
DB9RF
J3
3/18/10
D
M
5
Sheet
5 of
Date
6
B.Popescu
2
Rev
3/31/10
A.Hapenciuc
Drawn by:
Eng:
MCP3903 Eval Board for 16-bit MCU
RD15/U1RTS
TX
GNDA
RX
GNDA
+3.3V
D
Description
4
3
2
1
A.3
2
1
A
Schematics and Layouts
SCHEMATIC - LCD AND UART
DS51994A-page 17
100NF
4
3
2
A
GNDA
GNDA
GNDA
GNDA
B3S-1002P
SW4
B3S-1002P
SW3
B3S-1002P
SW2
B3S-1002P
SW1
+3.3V
+3.3V
C11
100NF
4.7K
GNDA
R20
R24
R14
+3.3V
R13
GNDA
C13
100NF
4.7K
R19
GNDA
C21
100NF
4.7K
R23
GNDA
C29
100NF
R31
1K
1K
1K
1K
B
6
5
4
3
2
1
HDR6X1
P6
PIC24 ICD
RD13
RD6
RD7
PIC24_MCLR
GNDA
+3.3V
10K
R21
PIC24_MCLR
RG15
RB0/AN0
RB1/AN1
RB2/SS1/AN2
RB3/AN3
RB4/AN4
RB5/AN5
RE9/INT2
RE8/INT1
RA0/TMS
USB_SS
PIC24_MCLR
USB_SDI
USB_SDO
USB_SCK
RC4
RC3
RC2
RE7/PMPD7
RE6/PMPD6
RE5/PMPD5
+3.3V
GNDA
+3.3V
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
C
PGD1/AN0/RB0
PGC1/AN1/CN3/RB1
C2IN-/AN2/SS1/RB2
C2IN+/AN3/CN5/RB3
C1IN-/AN4/CN6/RB4
C1IN+/AN5/CN7/RB5
INT2/RE9
INT1/RE8
RA0/TMS
VDD
VSS
PMPA2/SS2/CN11/RG9
MCLR
PMPA3/SDO2/CN10/RG8
PMPA4/SDI2/CN9/RG7
PMPA5/SCK2/CN8/RG6
T5CK/RC4
T4CK/RC3
T3CK/RC2
T2CK/RC1
PMPD7/RE7
PMPD6/RE6
PMPD5/RE5
VDD
RG15
U7
RG14
RG12
GNDA
R25
ENVREG
GNDA
NONE
RA7
R30
4.7K
VDDCORE
RG1
RG0
RA6
dsPIC33FJ256GP710-I/PF
GNDA
VDDCORE
R26
RD13
RD6
RD7
+3.3V
0.0
RD4/PMPWR
81
R22
RD5/PMPRD
82
+3.3V
GNDA
0.0
C24
100NF
D
+
OC1/RD0
RC13
RC14
VSS
NONE
VSS
INT3/RA14
INT4/RA15
IC1/RTCC/RD8
IC2/RD9
IC3/RD10
IC4/RD11
R29
U1TX/RF3
U1RX/RF2
SDO1/RF8
SDI1/RF7
SCK1/INT0/RF6
SDA1/RG3
SCL1/RG2
RA2
RA3
TDI/RA4
TDO/RA5
VDD
OSC1/CLKI/RC12
OSC2/CLK0/RC15
C23
47UF
GNDA GNDA
RD1
D
RD3/PMPBE
dsPIC33
RE4/PMPD4
100
PMPD4/RE4
PGC2/RB6
26
RB6/AN6/PGC
C
RE3/PMPD3
99
PMPD3/RE3
RD12
79
B
RE2/PMPD2
PGD/OCFA/RB7
27
RB7/AN7/PGD
RG13
97
RG13
98
PMPD2/RE2
96
RG12
PMPA6/RA10
30
+3.3V
PMPA7/RA9
28
RA9/PMPA7
AVDD
29
RA10/PMPA6
95
RG14
AVSS
31
RE1/PMPD1
94
PMPD1/RE1
C1OUT/AN8/RB8
RE0/PMPD0
RB9/AN9
CVREF/AN10/RB10
34
RB10/PMPA13
VSS
36
TDO/AN11/RB11
35
RB11/PMPA12
32
RB8/AN8
RF1
38
VDD
37
+3.3V
93
PMPD0/RE0
RF0
39
TCK/RA1
RA1/TCK
C2OUT/AN9/RB9
33
92
RA7
91
RA6
90
RG0
89
RG1
88
RF1
ENVREG
86
VREG
84
SCL2/CN16/RD7
85
VCAP/VDDCORE
87
RF0
U2RTS/RF13
RF13/U2RTS
U2CTS/RF12
40
RF12/U2CTS
AN13/RB13
42
RB13/PMPA10
AN12/RB12
41
RB12/PMPA11
83
SDA2/CN15/RD6
80
CN19/RD13
PMPWR/OC5/RD4
PMPRD/CN14/RD5
PMPA0/AN15/CN12/RB15
45
VSS
46
+3.3V
PMPA1/AN14/RB14
43
RB14/PMPA1
RD2
77
RD2
76
RD1
78
SS1/RD3
IC5/RD12
CN20/RD14
47
RD14/U1CTS
U2RX/RF4
50
RF5/PMPA8/U2TX
CN21/RD15
48
RD15/U1RTS
U2TX/RF5
49
RF4/PMPA9/U2RX
VDD
44
RB15/PMPA0
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
GNDA
GNDA
+3.3V
+3.3V
RF3/U1TX
RF2/U1RX
RA2/SCL2
RA3/SDA2
RA15/INT4
RD8
RD9
RC13
RC14
3903_SDI
3903_SDO
3903_SCK
3903_CS
C28
GNDA
C26
100NF
E
RA9/PMPA7
GNDA
C25
E
100NF
GNDA
C27
100NF
GNDA
100
R39
3903_RESET
3903_DR
3903_CLKIN
100NF
GNDA
+3.3V
+3.3V
+3.3V
+3.3V
C31
18PF
GNDA
C22
100NF
GNDA
C20
100NF
+3.3V
R27
X3
Revision Notes
GNDA
C19
100NF
GNDA
C16
100NF
+3.3V
R28
2.2K
+3.3V
R35
NONE
1M
D7
C
RD8
GNDA
C18
100NF
GNDA
C15
100NF
1K
R37
R36
3
GNDA
1K
+3.3V
dsPIC33.SCHDOC
3/18/10
M
Sheet
F
F
3 of
6
B.Popescu
A.Hapenciuc
Drawn by:
Eng:
MCP3903 Eval Board for 16-bit MCU
Filename:
Date:
Size
Title
GNDA
C17
100NF
GNDA
C14
100NF
RG3/SDA1
RG2/SCL1
OSC1
RH6
RED
GM1JR35200AE
OSC2
C32
18PF
GNDA
GNDA
100
R38
Initial Schematic Design
7.3728MHZ
R34
2.2K
GNDA
RH7
GREEN
SML-512MW
D6
1
RA10/PMPA6
REV
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
DS51994A-page 18
+3.3V
Date
4
3/31/10
4
3
2
1
A.4
+3.3V
1
A
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
SCHEMATIC - USB AND MEMORY
© 2011 Microchip Technology Inc.
+3.3V
4
3
A
GNDA
X1
470
R44
B
C39
0.1uF
3
RESONATOR-CSTCE
12MHz
GREEN
2
B
2
4
© 2011 Microchip Technology Inc.
470
R41
GNDA
RED
R47
D1
USB_+5V
U5
VSS
D+
DVUSB
GP0/SSPND
GP1/USBCFG
GP2
CTS
RX
RTS
MCP2200_SSOP20
VDD
OSC1
OSC2
RST
GP7/TxLED
GP6/RxLED
GP5
GP4
GP3
TX
GNDA
C
0.1uF
C41
MCP2200
C
J5
U5-RX
RF2/U1RX
U6RX
RF3/U1TX
HDR1X3
GNDA
D+
D-
USB_+5V
5
4
3
2
1
USB
D
J2E
J2D
J2C
J2B
J2A
DATAVIEW PORT
D
E
E
Filename:
MCP2200 _ USB.SCHDOC
M
3/18/10
2
Sheet
2 of
F
6
B.Popescu
A.Hapenciuc
Drawn by:
Eng:
MCP3903 Eval Board for 16-bit MCU
C
Date:
Size
Title
4
10/26/10
MCP2200 communication
2
Date
3/31/10
F
Initial Schematic Design
Revision Notes
1
REV
4
3
2
1
A.5
1
1
A
Schematics and Layouts
SCHEMATIC - MICROCONTROLLER (MCU)
DS51994A-page 19
470
4
3
A
USB_SCK
USB_SS
USB_SDI
USB_SDO
RG15
RB0/AN0
RB1/AN1
RB2/SS1/AN2
RB3/AN3
RB4/AN4
RB5/AN5
RE9/INT2
RE8/INT1
RA0/TMS
PIC24_MCLR
RC4
RC3
RC2
RE7/PMPD7
RE6/PMPD6
RE5/PMPD5
+3.3V
GNDA
+3.3V
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
PGD1/AN0/RB0
PGC1/AN1/CN3/RB1
C2IN-/AN2/SS1/RB2
C2IN+/AN3/CN5/RB3
C1IN-/AN4/CN6/RB4
C1IN+/AN5/CN7/RB5
INT2/RE9
INT1/RE8
RA0/TMS
VDD
VSS
PMPA2/SS2/CN11/RG9
MCLR
PMPA3/SDO2/CN10/RG8
PMPA4/SDI2/CN9/RG7
PMPA5/SCK2/CN8/RG6
T5CK/RC4
T4CK/RC3
T3CK/RC2
T2CK/RC1
PMPD7/RE7
PMPD6/RE6
PMPD5/RE5
VDD
RG15
100
26
2
PIM 100-PIN
MOD1
RE4/PMPD4
PMPD4/RE4
RE3/PMPD3
99
PMPD3/RE3
PGD/OCFA/RB7
27
RB7/AN7/PGD
PGC2/RB6
RB6/AN6/PGC
RE2/PMPD2
98
PMPD2/RE2
PMPA7/RA9
B
RG13
97
RG13
PMPA6/RA10
RG12
96
RG12
B
RG14
GNDA
AVDD
30
+3.3V
28
RA9/PMPA7
29
RA10/PMPA6
95
RG14
AVSS
31
RE1/PMPD1
94
PMPD1/RE1
C1OUT/AN8/RB8
32
RB8/AN8
RE0/PMPD0
93
PMPD0/RE0
C2OUT/AN9/RB9
33
RB9/AN9
RA7
92
RA7
CVREF/AN10/RB10
34
RB10/PMPA13
RA6
91
RA6
RG0
GNDA
TDO/AN11/RB11
35
RB11/PMPA12
RF1
88
RF1
RG1
89
RG0
90
RG1
VSS
36
RF0
87
39
VDD
37
+3.3V
TCK/RA1
38
RA1/TCK
RF0
ENVREG
86
VREG
VDDCORE
85
VCAP/VDDCORE
RD7
84
42
U2RTS/RF13
RF13/U2RTS
U2CTS/RF12
40
RF12/U2CTS
AN12/RB12
41
RB12/PMPA11
SCL2/CN16/RD7
RD6
83
SDA2/CN15/RD6
PMPA1/AN14/RB14
43
RB14/PMPA1
AN13/RB13
RB13/PMPA10
RD5/PMPRD
82
PMPRD/CN14/RD5
RD4/PMPWR
81
RD13
PMPWR/OC5/RD4
VSS
GNDA
45
PMPA0/AN15/CN12/RB15
RB15/PMPA0
44
80
CN19/RD13
VDD
46
+3.3V
RD2
77
RD2
RD1
76
RD1
RD3/PMPBE
78
SS1/RD3
RD12
79
IC5/RD12
CN20/RD14
47
RD14/U1CTS
CN21/RD15
48
RD15/U1RTS
U2TX/RF5
50
RF5/PMPA8/U2TX
U2RX/RF4
49
RF4/PMPA9/U2RX
DS51994A-page 20
C
U1TX/RF3
U1RX/RF2
SDO1/RF8
SDI1/RF7
SCK1/INT0/RF6
SDA1/RG3
SCL1/RG2
RA2
RA3
TDI/RA4
TDO/RA5
VDD
OSC1/CLKI/RC12
OSC2/CLK0/RC15
VSS
INT3/RA14
INT4/RA15
IC1/RTCC/RD8
IC2/RD9
IC3/RD10
IC4/RD11
OC1/RD0
RC13
RC14
VSS
C
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
+3.3V
GNDA
GNDA
RF3/U1TX
RF2/U1RX
RG3/SDA1
RG2/SCL1
RA2/SCL2
RA3/SDA2
OSC1
OSC2
RA15/INT4
RD8
RD9
RC13
RC14
PIM MODLUE
3903_SDI
3903_SDO
3903_SCK
3903_CS
3903_RESET
3903_DR
3903_CLKIN
D
GNDA
RE6/PMPD6
RE4/PMPD4
RE2/PMPD2
RE0/PMPD0
+3.3V
RD12
RD8
RD6
RD4/PMPWR
RD2
3903_CLKIN
RC13
RC3
RB14/PMPA1
RB12/PMPA11
RB10/PMPA13
RB5/AN5
RB6/AN6/PGC
RA6
3903_CS
RA0/TMS
RG12
RG15
+9V
+5V
+3.3V
RF12/U2CTS
RA15/INT4
GNDA
RA9/PMPA7
RB8/AN8
GNDA
RG8/PMPA3/SDO2
RG7/PMPA4/SDI2
RG6/PMPA5/SCK2
RG9/PMPA2/SS2
RG1
RG0
+9V
+5V
+3.3V
RD14/U1CTS
RE9/INT2
GNDA
RB3/AN3
RB0/AN0
GNDA
3903_SDI
3903_SDO
3903_SCK
RB2/SS1/AN2
D
J4
118
120
117
119
112
116
110
115
108
114
106
113
111
104
103
109
102
101
105
100
99
107
98
94
96
92
97
93
95
91
88
87
90
86
85
89
84
76
78
75
77
82
74
73
83
72
81
70
71
80
68
69
79
66
67
62
65
60
61
58
56
54
59
57
55
53
52
50
51
48
49
46
44
42
40
38
36
34
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
47
45
43
41
39
37
35
33
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
MEC1-160-02-L-D
GNDA
RE7/PMPD7
RE5/PMPD5
RE3/PMPD3
RE1/PMPD1
+3.3V
RD13
RD9
RD7
RD5/PMPRD
RD3/PMPBE
RD1
RC14
RC4
RC2
RB15/PMPA0
RB13/PMPA10
RB11/PMPA12
PIC24_MCLR
RB7/AN7/PGD
RA7
3903_RESET
RA1/TCK
RG14
RG13
RG1
RG0
+9V
+5V
+3.3V
RF13/U2RTS
3903_DR
GNDA
RA10/PMPA6
RB9/AN9
GNDA
RA3/SDA2
RA2/SCL2
RF5/PMPA8/U2TX
RF4/PMPA9/U2RX
RF1
RF0
+9V
+5V
+3.3V
RD15/U1RTS
RE8/INT1
GNDA
RB4/AN4
RB1/AN1
GNDA
RG3/SDA1
RG2/SCL1
RF3/U1TX
RF2/U1RX
GNDA
E
RE6/PMPD6
RE4/PMPD4
RE2/PMPD2
RE0/PMPD0
+3.3V
RD12
RD8
RD6
RD4/PMPWR
RD2
3903_CLKIN
RC13
RC3
RB14/PMPA1
RB12/PMPA11
RB10/PMPA13
RB5/AN5
RB6/AN6/PGC
RA6
3903_CS
RA0/TMS
RG12
RG15
+9V
+5V
+3.3V
RF12/U2CTS
RA15/INT4
GNDA
RA9/PMPA7
RB8/AN8
GNDA
RG8/PMPA3/SDO2
RG7/PMPA4/SDI2
RG6/PMPA5/SCK2
RG9/PMPA2/SS2
RG1
RG0
+9V
+5V
+3.3V
RD14/U1CTS
RE9/INT2
GNDA
RB3/AN3
RB0/AN0
GNDA
3903_SDI
3903_SDO
3903_SCK
RB2/SS1/AN2
E
119
117
115
113
111
109
107
105
103
101
99
97
95
93
91
89
87
85
83
81
79
77
75
73
71
69
67
65
61
59
57
55
53
51
49
47
45
43
41
39
37
35
33
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
1
REV
P9
120
118
116
114
112
110
108
106
104
102
100
98
96
94
92
90
88
86
84
82
80
78
76
74
72
70
68
66
62
60
58
56
54
52
50
48
46
44
42
40
38
36
34
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
C
4
PIM MODULE.SCHDOC
M
3/18/10
Sheet
F
4 of
F
6
B.Popescu
A.Hapenciuc
Drawn by:
Eng:
MCP3903 Eval Board for 16-bit MCU
Filename:
Date:
Size
Title
GNDA
RE7/PMPD7
RE5/PMPD5
RE3/PMPD3
RE1/PMPD1
+3.3V
RD13
RD9
RD7
RD5/PMPRD
RD3/PMPBE
RD1
RC14
RC4
RC2
RB15/PMPA0
RB13/PMPA10
RB11/PMPA12
PIC24_MCLR
RB7/AN7/PGD
RA7
3903_RESET
RA1/TCK
RG14
RG13
RG1
RG0
+9V
+5V
+3.3V
RF13/U2RTS
3903_DR
GNDA
RA10/PMPA6
RB9/AN9
GNDA
RA3/SDA2
RA2/SCL2
RF5/PMPA8/U2TX
RF4/PMPA9/U2RX
RF1
RF0
+9V
+5V
+3.3V
RD15/U1RTS
RE8/INT1
GNDA
RB4/AN4
RB1/AN1
GNDA
RG3/SDA1
RG2/SCL1
RF3/U1TX
RF2/U1RX
Initial Schematic Design
Revision Notes
Date
4
3/31/10
4
3
2
1
A.6
MEC1-160-02-L-D MATE
1
A
MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
SCHEMATIC - PIM MODULE
© 2011 Microchip Technology Inc.
4
3
2
A
J1
RAPC722
+9V IN
1
3
2
POWER
K
D3
GNDAMBR0520LT1
A
GNDA
C4
10UF
+9V
3
IN
U1
2
EXT +5V
POWER
GNDA
OUT
LM1117-5.0
GND
1
© 2011 Microchip Technology Inc.
GNDA
P11A
B
P11B
C3
100NF
B
GNDA
POWER.SCHDOC
EXT_+5V
Filename:
1
2
USB_+5V
POWER
JP3
1
2
HDR3X2
3
5
4
6
EXT +5V
+9V IN
USB
4.7UF
C6
GNDA
3
IN
C2
4.7UF
C
GNDA
U3
LM1117-3.3
OUT
GNDA
C
1
L1
10UH
2
GNDA
C1
10UF
+5V
+3.3V
100NF
C5
GNDA
POWER
BLUE
GM1B55250AC
D5
1
Rev
+3.3V
Date:
B
Size
Title
GNDA
100
R58
D
3/18/10
D
M
6
Sheet
6 of
Date
6
B.Popescu
4
Rev
3/31/10
A.Hapenciuc
Drawn by:
Eng:
MCP3903 Eval Board for 16-bit MCU
GNDA GNDA
PJ-202-30
TP1
GND
Initial Design
Description
4
3
2
1
A.7
GND
1
A
Schematics and Layouts
SCHEMATIC - POWER
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 BOARD
FOR 16-BIT MCUs USER’S GUIDE
Appendix B. Bill of Materials (BOM)
TABLE B-1:
Qty
BILL OF MATERIALS (BOM)
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
T491A476M006AT
1
C23
CAPACITOR TANT 47UF 6.3V 20% SMD
Kemet®
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
1
JP6
2 x 1 Header 2.54mm
9
Jumper Shunts
CONN JUMPER SHORTING TIN
Note 1:
Samtec
TSW-103-07-G-D
Sullins Connector
Solutions
STC02SYAN
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)
TABLE B-1:
Qty
BILL OF MATERIALS (BOM) (CONTINUED)
Reference
Description
Manufacturer
1
L1
Shielded 10uH Power Inductor 0805
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
1
P9
"DO NOT INSTALL”
-
1
PCB
RoHS Compliant Bare PCB, MCP3901
Eval. Board for 16-bit MCU
-
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,R
54,R55,R56,R5
8 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
Note 1:
Coilcraft
Part Number
0805PS-103KLC
-
-
Samtec
TSW-104-17-T-D
-
104-00221
-
-
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)
TABLE B-1:
Qty
BILL OF MATERIALS (BOM) (CONTINUED)
Reference
Description
Manufacturer
Part Number
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
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
Worldwide Sales and Service
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
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Corporate Office
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Fax: 480-792-7277
Technical Support:
http://www.microchip.com/
support
Web Address:
www.microchip.com
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
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Tel: 852-2401-1200
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Tel: 91-80-3090-4444
Fax: 91-80-3090-4123
India - New Delhi
Tel: 91-11-4160-8631
Fax: 91-11-4160-8632
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
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Tel: 91-20-2566-1512
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Tel: 408-961-6444
Fax: 408-961-6445
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
China - Beijing
Tel: 86-10-8569-7000
Fax: 86-10-8528-2104
China - Chengdu
Tel: 86-28-8665-5511
Fax: 86-28-8665-7889
China - Chongqing
Tel: 86-23-8980-9588
Fax: 86-23-8980-9500
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
China - Hangzhou
Tel: 86-571-2819-3180
Fax: 86-571-2819-3189
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
Taiwan - Hsin Chu
Tel: 886-3-6578-300
Fax: 886-3-6578-370
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
Taiwan - Kaohsiung
Tel: 886-7-213-7830
Fax: 886-7-330-9305
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
Taiwan - Taipei
Tel: 886-2-2500-6610
Fax: 886-2-2508-0102
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
China - Xiamen
Tel: 86-592-2388138
Fax: 86-592-2388130
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
DS51994A-page 28
Korea - Daegu
Tel: 82-53-744-4301
Fax: 82-53-744-4302
05/02/11
© 2011 Microchip Technology Inc.