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Texas Instruments TSC2200: Touch Screen Controller Evaluation Module User guides
TSC2200 Touch Screen Controller
Evaluation Module
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User's Guide
2002
Data Acquisition Products
SBAU076
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IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any
product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before
placing orders, that information being relied on is current and complete. All products are sold subject to the terms and
conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent
infringement, and limitation of liability.
TI warrants performance of its products to the specifications applicable at the time of sale in accordance with TI’s
standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support
this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by
government requirements.
Customers are responsible for their applications using TI components.
In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be
provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any
license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual
property right of TI covering or relating to any combination, machine, or process in which such products or services might
be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s
approval, license, warranty or endorsement thereof.
Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is
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Resale of TI’s products or services with statements different from or beyond the parameters stated by TI for that product
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Also see: Standard Terms and Conditions of Sale for Semiconductor Products. www.ti.com/sc/docs/stdterms.htm
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright © 2001, Texas Instruments Incorporated
i
EVM IMPORTANT NOTICE
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:
This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR
EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use. As
such, the goods being provided may not be complete in terms of required design-, marketing-,
and/or manufacturing-related protective considerations, including product safety measures
typically found in the end product incorporating the goods. As a prototype, this product does not
fall within the scope of the European Union directive on electromagnetic compatibility and
therefore may not meet technical requirements of the directive.
Should this evaluation kit not meet specifications indicated in the EVM User’s Guide, the kit may
be returned within 30 days from the date of delivery for a full refund. THE FOREGOING
WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO THE BUYER AND
IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY,
INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY
PARTICULAR PURPOSE.
The user assumes all responsibility and liability for proper and safe handling of the goods.
Further, the user indemnifies TI from all claims arising from the handling or use of the goods.
Please be aware that the products received may not be regulatory compliant or agency certified
(FCC, UL, CE, etc.). Due to the open construction of the product, it is the user’s responsibility to
take any and all appropriate precautions with regard to electrostatic discharge.
EXCEPT TO THE EXTENT OF THE INDEMINITY SET FORTH ABOVE, NEITHER PARTY
SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES.
TI currently deals with a variety of customers for products, and therefore our arrangement with
the user is not exclusive.
TI assumes no liability for applications assistance, customer product design, software
performance, or infringement of patents or services described herein.
Please read the EVM User’s Guide and, specifically, the EVM Warnings and Resitrictions notice
in the EVM User’s Guide prior to handling the product. This notice contains important safety
information about temperatures and voltages. For further safety concerns, please contact the TI
application engineer.
Persons handling the product must have electronics training and observe good laboratory
practice standards.
No license is granted under any patent right or other intellectual property right of TI covering or
relating to any machine, process, or combination in which such TI products or services might be
or are used.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright © 2001, Texas Instruments Incorporated
ii
EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the input voltage range of 6V to 12V and the output
voltage range of 5V.
Exceeding the specified input range may cause unexpected operation and/or irreversible damage
to the EVM. If there are questions concerning the input range, please contact a TI field
representative prior to connecting the input power.
Applying loads outside of the specified output range may result in unintended operation and/or
possible permanent damage to the EVM. Please consult the EVM User’s Guide prior to connecting
any load to the EVM output. If there is uncertainty as to the load specification, please contact a TI
field representative.
During normal operation, some circuit components may have case temperatures greater than
40°C. The EVM is designed to operate properly with certain components above 40°C as long as
the input and output ranges are maintained. These components include but are not limited to linear
regulators, switching transistors, pass transistors, and current sense resistors. These types of
devices can be identified using the EVM schematic located in the EVM User’s Guide. When
placing measurement probes near these devices during operation, please be aware that these
devices may be very warm to the touch.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright © 2001, Texas Instruments Incorporated
iii
Preface
Read This First
About This Manual
This users guide describes the function and operation of the TSC2200 touch screen
controller evaluation module. This manual will help you quickly set up the evaluation
board and its accompanying software, so that you may rapidly test and evaluate the
TSC2200. A complete circuit description, as well as schematic diagram and bill of
materials, is included.
How to Use This Manual
This manual begins with an introductory chapter which describes the EVM and what it can
do. If you're anxious to set things up and start testing, we suggest you read at least the
first two chapters. These two chapters introduce you to the board and how to set it up to
start working with it. Later chapters go into more detail on the board’s design and how to
access its many features.
Information About Cautions and Warnings
This book may contain cautions.
This is an example of a caution statement.
A caution statement describes a situation that could potentially
damage your software or equipment.
CAUTION
The information in a caution is provided for your protection. Please read each caution
carefully.
iv
Related Documentation From Texas Instruments
Data Sheets:
Literature Number:
TSC2200
SBAS191
SN74AHC244
SCLS226
SN74LVC07A
SCAS595
REG1117
SBVS001
If You Need Assistance
If you have questions about this or other Texas Instruments data converter evaluation
modules, feel free to e-mail the data converter application team at
dataconvapps@list.ti.com. Include the product name in the subject heading.
FCC Warning
This equipment is intended for use in a laboratory test environment only. It generates,
uses, and can radiate radio frequency energy and has not been tested for compliance
with the limits of computing devices pursuant to subpart J of part 15 of FCC rules, which
are designed to provide reasonable protection against radio frequency interference.
Operation of this equipment in other environments may cause interference with radio
communications, in which case the user at his own expense will be required to take
whatever measures may be required to correct this interference.
If your book does not discuss a product that creates radio frequency interference, delete
this section from your preface. If your book does discuss a product that creates radio
frequency interference, you must include this warning as it appears above.
Trademarks
Windows is a trademark of Microsoft Corporation.
TouchTek 4 and MicroTouch are trademarks of 3M.
SPI is a registered trademark of Motorola.
v
Contents
Read This First.................................................................................................................................... iv
About This Manual ......................................................................................................................... iv
How to Use This Manual ................................................................................................................ iv
Information About Cautions and Warnings ..................................................................................... iv
Related Documentation From Texas Instruments ...........................................................................v
If You Need Assistance...................................................................................................................v
FCC Warning ..................................................................................................................................v
Trademarks.....................................................................................................................................v
Contents.............................................................................................................................................. vi
Figures ............................................................................................................................................... vii
Tables ................................................................................................................................................. vii
Introduction....................................................................................................................................... 1-1
1.1 Device Characteristics......................................................................................................... 1-2
1.2 EVM Block Diagram ............................................................................................................ 1-2
1.3 Analog Inputs/Outputs......................................................................................................... 1-3
1.4 Prototyping Area ................................................................................................................. 1-3
1.5 Power Requirements........................................................................................................... 1-3
1.6 Computer Requirements ..................................................................................................... 1-3
Getting Started.................................................................................................................................. 2-1
2.1 Unpacking the EVM............................................................................................................. 2-2
2.2 Default Configuration........................................................................................................... 2-2
2.3 Quick Start .......................................................................................................................... 2-2
Operation .......................................................................................................................................... 3-1
3.1 Jumpers .............................................................................................................................. 3-2
3.1.1
3.1.2
3.1.3
DAC Pull-up Voltage: Motherboard...........................................................................................3-2
DAC Pull-up Voltage: Daughter card ........................................................................................3-2
VDAC Output Selection ............................................................................................................3-2
3.2 I/O Connectors and Signals................................................................................................. 3-2
3.2.1
3.2.2
TSC100PM Motherboard Connectors.......................................................................................3-3
TSC2200EVM Daughter Card Connectors ...............................................................................3-8
3.3 Circuit Description ............................................................................................................. 3-10
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
Power Supply ..........................................................................................................................3-10
Digital Interface .......................................................................................................................3-10
Touch Screen and Analog Inputs............................................................................................3-11
Keypad Interface .....................................................................................................................3-11
DAC Circuit .............................................................................................................................3-12
3.4 Program Description.......................................................................................................... 3-13
3.4.1
3.4.2
3.4.3
Human Interface Screen .........................................................................................................3-13
Configuration Screen ..............................................................................................................3-15
Data Acquisition Screen..........................................................................................................3-18
Physical Description ........................................................................................................................ 4-1
4.1 Schematics.......................................................................................................................... 4-2
4.1.1
4.1.2
vi
TSC100PM Motherboard ..........................................................................................................4-2
TSC2200EVM Daughter Card ..................................................................................................4-3
4.2 Component Locations.......................................................................................................... 4-4
4.2.1
4.2.2
TSC100PM Motherboard ..........................................................................................................4-4
TSC2200EVM Daughter Card ..................................................................................................4-5
4.3 Bill of Materials .................................................................................................................... 4-6
4.3.1
4.3.2
TSC100PM Motherboard ..........................................................................................................4-6
TSC2200EVM Daughter Card ..................................................................................................4-8
Figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
TSC2200 Evaluation Kit Block Diagram................................................................ 1-2
Default Software Screen ........................................................................................ 2-3
Human Interface Screen ...................................................................................... 3-13
Configuration Screen........................................................................................... 3-15
External Reference Selection .............................................................................. 3-17
Data Acquisition Screen ...................................................................................... 3-18
TSC100PM Motherboard........................................................................................ 4-2
TSC2200EVM Daughter Card................................................................................. 4-3
TSC100PM Motherboard........................................................................................ 4-4
TSC2200EVM Daughter Card................................................................................. 4-5
Tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Default Configuration Settings.............................................................................. 2-2
Jumper/Function Reference .................................................................................. 3-2
Parallel Port Connector ......................................................................................... 3-3
External SPI Connector ......................................................................................... 3-4
Power Connectors ................................................................................................. 3-4
Power Interface Connector.................................................................................... 3-5
Digital Interface Connector.................................................................................... 3-5
Analog Input Connector ........................................................................................ 3-6
Touch screen Input Connector ............................................................................. 3-6
I2C Interface Connector.......................................................................................... 3-7
X-Y Interface Connector ........................................................................................ 3-7
DAC Connector ...................................................................................................... 3-8
Power Interface Connector.................................................................................... 3-8
Digital Interface Connector.................................................................................... 3-9
I2C Interface Connector.......................................................................................... 3-9
X-Y Interface Connector ...................................................................................... 3-10
vii
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Chapter 1
Introduction
The TSC2200 is an advanced touch screen controller, which communicates to a host
processor through an SPI serial interface. The evaluation kit for this device, the
TSC2200EVM, is designed to ease the digital interface to the TSC2200 by connecting to
a personal computer running easy-to-use software which allows total access to the
TSC2200's various control functions. The TSC2200EVM consists of a motherboard which
connects to the PC (TSC100PM), and a daughter card with the TSC2200 and its
associated circuitry (TSC2200EVM).
Topic
Page
Device Characteristics
1-2
EVM Block Diagram
1-2
Analog Inputs/Outputs
1-3
Prototyping Area
1-3
Power Requirements
1-3
Computer Requirements
1-3
1-1
Introduction
1.1 Device Characteristics
The TSC2200 is a complete PDA analog interface circuit. It contains a complete 12-bit
(A/D) resistive touch screen converter, including drivers, the control to measure touch
pressure, a 4-by-4 matrix keyboard controller, and 8-bit DAC output for LCD contrast
control. The TSC2200 interfaces to the host controller through a standard SPI serial
interface. The TSC2200 also offers two battery measurement inputs capable of reading
battery voltages up to 6V, while operating with only a 2.7V supply. It also has an on-chip
temperature sensor capable of reading 0.3 degrees C resolution.
1.2 EVM Block Diagram
A block diagram of the TSC2200 evaluation kit is shown in Figure 1. The evaluation kit
consists of two circuit boards connected together. The motherboard is designated as the
TSC100PM, while the daughter card is designated as the TSC2200EVM.
Figure 1.
TSC2200 Evaluation Kit Block Diagram.
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1-2
Introduction
The digital control interface is either through the PC parallel port, or an external SPI bus.
The PC parallel port can be disabled, allowing the external SPI bus to control the
TSC2200. When using the PC parallel port or the external SPI bus, the digital signals are
level converted to the digital interface voltage of 3.3V.
Power supplies are to be provided to the kit through external connectors from an external,
user-supplied laboratory power supply.
1.3 Analog Inputs/Outputs
Touch screen inputs are provided to the controller through J8 on the motherboard. This
connector is standard on 3M Touch Systems (formerly MicroTouch) TouchTek 4 touch
screens. The other analog inputs are brought onto the board through the J7 terminal
block. The AUX1 and AUX2 inputs must be between 0V and 3.3V, while the battery
inputs, VBAT1 and VBAT2 may range from 0V to 6V.
1.4 Prototyping Area
The daughter card that carries the TSC2200 has a small prototyping area on it. This may
be used to build small signal conditioning circuits if the TSC2200EVM's options do not
provide adequate simulation of the user's system.
1.5 Power Requirements
The TSC100PM motherboard requires 6VDC to 12VDC to be provided by the user either
through the J3 terminal block or the J4 barrel jack. If J4 is used with a wall adapter type
AC/DC supply, the connector must be configured with the center terminal positive.
1.6 Computer Requirements
The TSC2200EVM software is designed to run on a PC running any Windows platform
(Windows 95, 98, NT, 2000, etc).
Minimum Requirements:
■
IBM-Compatible 486 PC or Higher
■
Windows 95, 98, 2000 or NT4.0
■
64MB RAM Minimum
■
20MB Available Hard Disk Space
■
CD-ROM Drive
■
Available Parallel Port
1-3
Introduction
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1-4
Chapter 2
Getting Started
This chapter will guide you through unpacking your EVM, and setting it up so you can
begin working with it immediately.
Topic
Page
Unpacking the EVM
2-2
Default Configuration
2-2
Quick Start
2-2
2-1
Getting Started
2.1 Unpacking the EVM
After unpacking the TSC2200EVM, check to make sure you received all the material that
should be in the box. The EVM kit should include the following:
■
TSC100PM board, PWB 6434953, with attached TSC2200EVM board,
PWB 6434947
■
CD-ROM, 6437055
■
IEEE1284 Cable
If any of these components are missing, contact Texas Instruments for a replacement.
2.2 Default Configuration
The TSC100PM and TSC2200EVM feature a few simple means of configuring their
operation. The configuration details needed are the settings of the one jumper on the
TSC100PM motherboard, and the two jumpers and the value of R1, the DAC range
setting resistor, on the TSC2200EVM daughter card.
The default settings for these items are shown in Table 1. When you unpack your
TSC2200EVM, make sure that your board is configured as shown here initally.
Table 1.
Default Configuration Settings
Board
Board Identifier
Description
Default Setting
TSC100PM
JMP1
DAC Pull-Up Voltage
1 to 2
TSC2200EVM
JMP1
DAC On-Board Pull-Up
2 to 3
TSC2200EVM
JMP2
DAC Output From On-Board Pull-Up
2 to 3
TSC2200EVM
R1
DAC Range Resistor
100kΩ
These settings will allow the DAC voltage, VDAC, present at J4 of the daughter card to
range from 4.1V to 5V.
2.3 Quick Start
Once the TSC2200EVM has been unpacked from its shipping container, and you have
verified that the board is configured as shown in Table 1, it can be connected to the power
supply.
Connect wires from the terminal block J3 to a laboratory power supply set to supply
between 6VDC and 12VDC. Make sure to observe correct polarity; the polarity for the
terminal block is marked on the printed circuit board. Do not turn on the power supply at
this time.
Connect the IEEE1284 cable to your PC, but do not connect it to the TSC100PM board
yet.
Place the CD-ROM into your PC's CD-ROM drive. Locate the Setup program on the disk,
and run it. The Setup program will install the TSC2200EVM software on your PC. Note
that if you are running a Windows platform that is NT-based, you will need administrator
privileges to install the software. Follow the instructions that the installer gives you.
2-2
Getting Started
When the installation is complete, turn on the power supply, then connect the parallel port
cable to the TSC100PM. Once these connections have been made, launch the
TSC2200EVM software on your PC.
The software should automatically determine the parallel port where the TSC2200EVM is
connected. If the board is found, the screen shown in Figure 2 will appear.
Figure 2.
Default Software Screen.
In order to use the touch screen features, a 4-wire resistive touch screen will need to be
connected to J8 of the motherboard.
2-3
Getting Started
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2-4
Chapter 3
Operation
This chapter describes each function of the TSC2200 evaluation kit, and how to use the
accompanying software to control and use the TSC2200.
Topic
Page
Jumpers
3-2
I/O Connectors and Signals
3-2
Circuit Descriptions
3-10
Program Descriptions
3-11
3-1
Operation
3.1 Jumpers
The following table shows the function of each jumper on the EVM:
Table 2.
Board
TSC100PM
TSC2200EVM
TSC2200EVM
Jumper/Function Reference.
Reference
Designator
Setting
Function
Subsection
JMP1
1 to 2
DAC Pull-Up Voltage = 5V
3.1.1
2 to 3
DAC Pull-Up Voltage = 3.3V
1 to 2
DAC Pull-Up Connected to R3
2 to 3
DAC Pull-Up Connected to Q1
1 to 2
VDAC Output Connected to R3/R5
2 to 3
VDAC Output Connected to R4/R6
JMP1
JMP2
3.1.2
3.1.3
3.1.1 DAC Pull-up Voltage: Motherboard
The TSC100PM motherboard can supply either +5V or +3.3V to the daughter card for use
as the pull-up voltage for the TSC2200's digital-to-analog converter (DAC). This selection
is made on the TSC100PM through JMP1.
3.1.2 DAC Pull-up Voltage: Daughter card
The TSC2200EVM daughter card has provisions for two different DAC pull-up circuits.
The first circuit is R3 and R5, which are to be user-installed and connected to a pull-up
voltage connected to the V+ input at J4 on the TSC2200EVM daughter card. The voltage
V+ must be less than or equal to the supply voltage for the TSC2200, which is nominally
+3.3V. This circuit is chosen by connecting positions 1 and 2 on JMP1 of the daughter
card.
The on-board resistors, R4 and R6, are connected to the DAC voltage provided by the
motherboard. Since the motherboard can supply a voltage higher than the supply voltage
of the TSC2200, Q1 is used to protect the TSC2200. This circuit is chosen by connecting
positions 2 and 3 on JMP1 of the daughter card.
3.1.3 VDAC Output Selection
JMP2 on the daughter card selects which resistor network connected to the DAC will be
connected to the VDAC output on connector J4. Positions 1 and 2 connected will select
the user-supplied R3/R5 resistor array, while positions 2 and 3 connected together select
the on-board resistor network of R4/R6.
3.2 I/O Connectors and Signals
The various connectors on the TSC2200EVM are described in this section.
3-2
Operation
3.2.1 TSC100PM Motherboard Connectors
3.2.1.1 Parallel Port Connector
The connector for use with the PC parallel port is described in Table 3. This connector
provides a means of communicating with the PC through an IEEE-1284 cable.
Table 3.
Reference
Designator
J1
Description
Digital communication
port between the
TSC2200EVM and a
host PC.
Parallel Port Connector.
Pin
Number
Signal Name
Function
1
EVM_ENABLE
Enables the SPI bus control
from the PC.
2
SS
Slave Select for SPI bus.
3
SCLK
Serial Clock for SPI bus.
4
MOSI
Master Out, Slave In data line
for SPI bus. Data travels to
the TSC2200 over this line.
5-9
NC
Not Connected
10
DAV
Data Available line from
TSC2200.
11
SDA_IN
Serial Data from I C data bus
to PC (not used for this EVM).
12
PENIRQ
Pen Interrupt line from
TSC2200.
13
KBIRQ
14
SCL
15
MISO
16
SDA_OUT
17
NC
18-25
GND
2
Keyboard interrupt line from
TSC2200.
2
Serial Clock line for I C
interface (not used for this
EVM).
Master In, Slave Out data line
for SPI bus. Data travels from
the TSC2200 over this line.
2
Serial Data from PC to I C
data bus (not used for this
EVM).
Not Connected.
Ground.
3-3
Operation
3.2.1.2 External SPI Connector
If the SPI bus is not controlled from the PC, it may be controlled through J2. The user
might connect an external microprocessor or DSP to the TSC2200EVM through this
connector.
Table 4.
Reference
Designator
J2
External SPI Connector.
Description
Pin
Number
Signal Name
1
NC
Not Connected
3
SS
Slave Select for SPI bus.
5
SCLK
Serial Clock for SPI bus.
7
MOSI
Master Out, Slave In
data line for SPI bus.
Data travels to the
TSC2200 over this line.
9
MISO
Master In, Slave Out
data line for SPI bus.
Data travels from the
TSC2200 over this line.
2, 4, 6, 8,
10
GND
Ground
Digital communication
port between the
TSC2200 and an
external processor
3.2.1.3 Power Connectors
Table 5.
3-4
Power Connectors.
Reference
Designator
Name
Description
J3
VDD IN
6V-12VDC input
J4
VDD IN
6V-12VDC input, positive center terminal
Function
Operation
3.2.1.4 Power Interface Connector for Daughter Card
The motherboard supplies the various power supply voltages to the daughter card through
this connector.
Table 6.
Reference
Designator
J5
Power Interface Connector.
Description
Pin
Number
Signal Name
1-4
NC
5, 7
DVDD
9
DAC Pull-up
6, 8, 10
GND
Power supply
connections between
TSC100PM
motherboard and
TSC2200EVM daughter
card.
Function
Not Connected
+3.3V supply
Supplies pull-up voltage
to DAC resistor network
on daughter card.
Ground
3.2.1.5 Digital Interface Connector for Daughter Card
Table 7.
Reference
Designator
J6
Description
Digital communication
port between the
TSC2200EVM
daughter card and the
TSC100PM.
Digital Interface Connector.
Pin
Number
Signal Name
Function
1
SCLK
Serial Clock for SPI bus.
3
SS
Slave Select for SPI bus.
5
MOSI
7
DAV
Data Available line from the
TSC2200.
8
KBIRQ
Keyboard interrupt line from
the TSC2200.
9
MISO
Master In, Slave Out data line
for SPI bus. Data travels from
the TSC2200 over this line.
10
PENIRQ
2,4, 6
NC
Master Out, Slave In data line
for SPI bus. Data travels to
the TSC2200 over this line.
Pen Interrupt line from the
TSC2200.
Not Connected
3-5
Operation
3.2.1.6 Analog Input Connector
The auxiliary and battery inputs to the touch screen controller are brought onto the
motherboard through a terminal block, J7. The pinout is shown in Table 8.
Table 8.
Reference
Designator
J7
Description
Battery and auxiliary
inputs to the touch
screen control.
Analog Input Connector.
Pin
Number
Signal Name
Function
1
VBAT1
Battery Input 1, 0V to 6V
2
VBAT2
Battery Input 2, 0V to 6V
3
AUX1
Auxiliary Input 1, 0V to VREF
4
AUX2
Auxiliary Input 2, 0V to VREF
3.2.1.7 Touch Screen Connector
A 4-wire touch screen connects to the motherboard through connector J8. This connector
is standard on 3M Touch Systems (formerly MicroTouch) TouchTek 4 touch screens.
Table 9.
Reference
Designator
J8
3-6
Description
Touch screen Input.
Touch screen Input Connector.
Pin
Number
Signal Name
Function
1
X-
Touch Screen X - Electrode
2
Y+
Touch Screen Y + Electrode
3
X+
Touch Screen X+ Electrode
4
Y-
Touch Screen Y- Electrode
Operation
2
3.2.1.8 I C Interface Connector
2
The TSC100PM may have a daughter card which uses an I C interface. Provisions are
2
made for supplying this interface from the PC parallel port, and this I C interface is
supplied to the daughter card through this connector.
Table 10.
Reference
Designator
J9
Description
2
I C interface connection
to daughter card.
I2C Interface Connector.
Pin
Number
Signal Name
Function
1
SDA
Serial Data Line
3
SCL
Serial Clock Line
2, 4
NC
No Connection
3.2.1.9 X-Y Interface Connector
The analog signals to the touch screen controller are carried on this connector.
Table 11.
Reference
Designator
J10
Description
Analog interface to
touch screen controller.
X-Y Interface Connector.
Pin
Number
Signal Name
Function
1
X+
X+ Signal From Touch
Screen
2
X-
X- Signal From Touch
Screen
3
Y+
Y+ Signal From Touch
Screen
4
Y-
Y- Signal From Touch
Screen
5, 6
NC
No Connection
7
VBAT1
Battery 1 Input From J7
8
VBAT2
Battery 2 Input From J7
9
AUX1
Auxiliary Input 1 From J7
10
AUX2
Auxiliary Input 2 From J7
3-7
Operation
3.2.2 TSC2200EVM Daughter Card Connectors
3.2.2.1 DAC Connector
The TSC2200 DAC requires an external resistor network, pulled up to a bias voltage. This
voltage can be applied at J4, and the resulting output voltage from the DAC is also
available on J4.
Table 12.
DAC Connector.
Reference
Designator
Description
Pin
Number
Signal Name
J4
DAC voltage
connections.
1
V+
2
VDAC
Function
Pull-Up Voltage For
DAC Resistor Network
DAC Voltage Output
3.2.2.2 Power Interface Connector
Table 13.
Reference
Designator
J5
3-8
Description
Power supply
connections
between
TSC100PM
motherboard and
TSC2200EVM
daughter card.
Power Interface Connector.
Pin
Number
Signal Name
Function
1
LCD_BIAS_CNTL
Output voltage from
DAC, commonly used
for LCD bias control.
3
24V ENABLE
Logic line to enable a
DC/DC converter. Not
used in this kit.
2,4
NC
5, 7
DVDD
9
DAC Pull-up
6, 8, 10
GND
Not Connected
+3.3V Supply
Supplies pull-up voltage
to DAC resistor network
on daughter card.
Ground
Operation
3.2.2.3 Digital Interface Connector
Table 14.
Reference
Designator
J6
Description
Digital communication
port between the
TSC2200EVM
daughter card and the
TSC100PM.
Digital Interface Connector.
Pin
Number
Signal Name
Function
1
SCLK
Serial Clock for SPI Bus.
3
SS
Slave Select for SPI Bus.
5
MOSI
7
DAV
8
KBIRQ
Keyboard Interrupt Line From
TSC2200.
9
MISO
Master In, Slave Out data line
for SPI bus. Data travels from
the TSC2200 over this line.
10
PENIRQ
2, 4, 6
NC
Master Out, Slave In data line
for SPI bus. Data travels to
the TSC2200 over this line.
Data Available Line From
TSC2200.
Pen Interrupt Line From
TSC2200.
Not Connected
2
3.2.2.4 I C Interface Connector
Table 15.
Reference
Designator
J9
Description
2
I C interface connection
to daughter card.
I2C Interface Connector.
Pin
Number
Signal Name
Function
1
SDA
Serial Data Line
3
SCL
Serial Clock Line
2, 4
NC
No Connection
3-9
Operation
3.2.2.5 X-Y Interface Connector
Table 16.
Reference
Designator
Description
J10
Analog interface to
touch screen controller.
X-Y Interface Connector.
Pin
Number
Signal Name
Function
1
X+
X+ Signal From Touch
Screen
2
X-
X- Signal From Touch
Screen
3
Y+
Y+ Signal From Touch
Screen
4
Y-
Y- Signal From Touch
Screen
5, 6
NC
No Connection
7
VBAT1
Battery 1 Input From J7
8
VBAT2
Battery 2 Input From J7
9
AUX1
Auxiliary Input 1 From J7
10
AUX2
Auxiliary Input 2 From J7
3.3 Circuit Description
The TSC2200 evaluation kit consists of the TSC100PM motherboard and the
TSC2200EVM daughter card. Taken together, the circuit breaks down into a power
supply, a digital interface, a touch screen and analog inputs interface, a keypad interface,
and a DAC circuit. These circuits are described below.
3.3.1 Power Supply
Power to the TSC100PM motherboard can be supplied through the J3 terminal block, or
the J4 barrel jack connector. 6VDC to 12VDC must be supplied. Since it is regulated on
the TSC100PM, this input voltage does not need to be regulated, as long as it falls within
this range. D1 prevents a power supply which is connected with the wrong polarity from
damaging the board.
U2 and U3 regulate the input supply voltage to provide 5V and 3.3V, respectively. Each
regulated supply voltage has an LED attached which will alert the user that the supply is
working.
3.3.2 Digital Interface
The SPI interface to the TSC100PM motherboard can be controlled from two sources: the
external SPI header, J2, or from the PC parallel port, J1. The PC parallel port connection
is buffered through U1. U1's outputs are enabled only when pin 1 of U1 is LOW. This pin
3-10
Operation
is pulled HIGH by R1, so that if no parallel port is connected, U1's outputs are tri-stated,
allowing the external SPI bus to drive the TSC2200. When the PC parallel port is
connected, the PC software will pull pin 1 of the parallel port, which is connected to pin 1
of U1, LOW in order to enable the PC to control the SPI bus.
Do not drive the external SPI bus when the PC parallel port is
connected. Disconnect the PC parallel port cable from the
TSC100PM if you want to use the external SPI bus.
CAUTION
Each signal from the SPI inputs is buffered through open drain buffers (U4, U5). These
buffers translate the input signals to 3.3V logic levels to drive the touch screen controller;
likewise, output signals from the controller are translated to 5V logic levels. These signals
are all connected to J6, the digital interface to the daughter card. On the daughter card,
these signals are connected directly to the TSC2200.
2
An I C interface is provided from the PC parallel port, and this too is level shifted so that
2
logic levels to the device are 3.3V logic, and logic levels to the PC are 5V. The I C signals
2
are routed to J9, the I C interface to the daughter card. On the daughter card, these
signals are routed to a footprint for a 24LC64 EEPROM, which is not installed. This is to
allow for extra functionality for future applications.
3.3.3 Touch Screen and Analog Inputs
On the motherboard, terminal block J7 provides input connection points for the battery
and auxiliary inputs. Battery inputs may range from 0VDC to 6VDC, and the auxiliary
inputs can range from 0VDC to 2.5VDC. The touch screen can be connected to J8 on the
motherboard.
Each of these eight inputs has provision for an RC filter to be placed in line with the
signal. As shipped, all the resistors are 0Ωs, and the capacitors are not installed. If noisy
conditions prevent obtaining good readings from the TSC2200, 0.1uF capacitors may be
installed in positions C6 through C13. If more filtering is required, the 0Ω resistors should
be unsoldered from the board and replaced with small resistors. Note that increasing the
capacitance on the touch screen inputs will require increased panel voltage stabilization
time, as well as increased precharge and sense times, thus lowering the available number
of readings per second.
The filtered signals for all the analog inputs are routed to J10, the X-Y Interface to the
daughter card. On the daughter card, these signals are connected directly to the
TSC2200.
3.3.4 Keypad Interface
A 4x4 matrix keypad is on the daughter card. This keypad connects directly to the
TSC2200. No other circuitry is needed since the TSC2200 contains all the keypad control
circuitry.
3-11
Operation
3.3.5 DAC Circuit
The TSC2200 contains a current-output DAC, which is designed to be used with a two
resistor pull-up network to turn the current into a voltage. The details of the operation of
this DAC can be found in the TSC2200 data sheet.
On this board, provisions are made for the user to provide these two resistors, in R3 and
R5 sockets on the daughter card. These can be connected to an external pull-up voltage,
which is provided through J4 on the daughter card.
On the daughter card, R4 and R6 are installed. When the DAC pull-up voltage is selected
to be 5V, the range for the DAC output voltage, also available on J4, is 4.1V to 5V, with
the factory installed resistor value of 100kΩ for R1.
R1 is the range setting resistor for the TSC2200 DAC, and is installed in a socket so that it
can be replaced with a different value. With the factory installed value of 100kΩ, the DAC
has a range of 600uA.
3-12
3.4 Program Description
After having installed the software for the TSC2200EVM as described in section 2.3, you
may begin using it to evaluate and develop with the TSC2200.
3.4.1 Human Interface Screen
The program’s interface is a simple, three-tab interface. Clicking on a tab will take you to
the functions associated with that tab. The default tab which the program begins on is the
Human Interface tab, as shown in Figure 3.
Figure 3.
Human Interface Screen.
This screen reflects the touch screen and keypad inputs from the TSC2200EVM. The
status bar on the bottom of the screen Is divided into four sections, and shows the status
of communication between the PC and the motherboard. Starting from the left, the first
sections shows the status of the connection; if an error in communication occurs, an error
message will appear here, otherwise it will look as shown in Figure 3. The next section of
the status bar shows the parallel port that the EVM was found on, and the section next to
that is the hexadecimal value of the base address of that port. The final section, on the
right side of the status bar, shows the number of readings per second being taken from
the touch screen. This value will drop to zero when no screen touch is detected.
3-13
Operation
3.4.1.1 Touch Screen Section
The touch screen box on this screen will be updated when a touch is detected on the
touch screen. As the touch screen is drawn upon, the motion on the touch screen will be
translated into pixels on the screen. The software takes X, Y, and Z readings, which are
shown at the top of this box. As the touch pressure is increased, the pixel size increases;
a lighter touch results in smaller pixel sizes.
The display can be cleared by pressing the Enter or Delete keys on the PC keyboard.
3.4.1.2 Keypad Section
The keypad functions of the TSC2200 are controlled from this section of the screen. As
keys on the keypad of the EVM are pressed, the keypresses are displayed in the display
near the top of this box. The keymap shown here will also reflect keypresses on the EVM.
The display can be cleared by pressing the Clear button in this box.
Individual keys can be masked by clicking on the key in the keymap on this screen. The
key label will change to an "X" to reflect that the key is masked. When a key is masked,
pressing that key on the keypad on the EVM will not result in the keypress being detected.
To unmask a key which was masked, simply click on the key in the keymap again, and
the key label will return to its corresponding value.
The debounce time for the keypad can be set using the slider in this section. The
debounce time can range from 2ms to 120ms. Note that using short debounce times will
result in a single keypress generating multiple keypress events.
3-14
Operation
3.4.2 Configuration Screen
This screen gives access to all the configurable settings for the TSC2200's A/D converter,
reference and DAC, as shown in Figure 4.
Figure 4.
Configuration Screen.
3.4.2.1 A/D Converter Control Section
This section controls all the parameters of the A/D converter. Each slider controls one
parameter, whose value is shown next to the slider. Each slider is described below.
❏
Resolution
Selects between 8, 10, and 12 bit resolution.
❏
Conversion Clock
The internal clock which runs the A/D converter can run at 8-, 4-, 2-, or 1MHz. When
running at 8MHz, only 8-bit resolution is possible; when running at 4MHz, 8- or 10-bit
resolution is possible, but 12-bit is not. These restrictions are reflected in the
3-15
Operation
operation of this program, since only 1MHz or 2MHz clock rates will allow 12-bit
resolution to be chosen.
❏
Panel Voltage Stabilization Time
This is the time that the TSC2200 allows for the touch screen to settle after turning the
drivers on.
❏
Precharge Time
❏
Sense Time
These two parameters are the time allowed to precharge the touch panel capacitance
and then sense to see if the screen is touched. For more details on these parameters,
refer to the TSC2200 data sheet.
❏
Averaging
Several readings may be taken and then averaged to give a single result. No
averaging can be chosen, or 4, 8, or 16 readings can be averaged.
Note that these settings apply to all operations of the A/D converter, not just the touch
screen operations. Thus, resolution and averaging can be changed to increase
accuracy in the data acquisition functions.
3.4.2.2 Reference Section
The touch screen function is always performed using a ratiometric mode; for all other A/D
functions, a reference voltage is needed for the A/D converter. Figure 4 shows this
section with the TSC2200's internal reference chosen. This reference voltage can be set
to either 1.25V or 2.5V.
The internal reference powers down between conversions, to save power. Using the
Powered at all times checkbox, this can be overidden and the reference will not power
down. If the reference is allowed to power down, the TSC2200 then must allow a delay
time for the reference to power up when a conversion is to take place. This delay time can
be set using the slider in this section.
If an external reference is to be used, it may be selected as shown in Figure 5. The value
of the external reference should be entered in the text box shown.
3-16
Operation
Figure 5.
External Reference Selection.
3.4.2.3 DAC Section
The DAC can be powered down by using the checkbox in this section, if it is not going to
be used. If this box is not checked, the DAC value is set by using the slider in this section.
Note that sliders, when selected, can change value either by moving the mouse or by
using the arrow keys on the PC keyboard. Note that the DAC output voltage is dependent
upon the resistor network and pull-up voltage used on the hardware. Refer to the
TSC2200 data sheet for more information on the DAC operation.
3-17
Operation
3.4.3 Data Acquisition Screen
The data acquisition functions of the TSC2200 can be accessed on this screen, as shown
in Figure 6.
Figure 6.
Data Acquisition Screen.
When on this screen, the TSC2200 is commanded to perform a PORT SCAN function,
which updates the battery and auxiliary input voltage readings, and then is commanded to
perform a TEMP1 and TEMP2 measurement. These measurements are all repeated once
every second, and the results displayed on this screen.
3-18
Chapter 4
Physical Description
This chapter has the schematics and PCB layout information in it.
Topic
Page
Schematics
4-2
Component Locations
4-4
Bill of Materials
4-6
4 -1
A
B
C
D
2
1
CUI-STACK PJ102-B
2.5 MM
J4
1
6VDC-12VDC IN
TERMBLOCK-2
J3
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
DB25
J1
PC PARALLEL PORT
R1
4.7K
+5V
18
16
14
12
A1
A2
A3
A4
G
DL4001
D1
C2
.33uF
11
13
15
17
19
J2
C3
.33uF
3
3
R8
4.7K
+5V
R7
4.7K
+5V
R6
4.7K
+5V
R5
4.7K
+5V
VOUT
2
VIN
VOUT
U3
REG1117F-3.3
VIN
1
2
2
4
2
12
10
8
9
5
5
3
U5D
13
11
9
6
R4
2.7K
DVDD
R3
2.7K
DVDD
R2
2.7K
DVDD
8
6
+5V
C5
10uF
DVDD
C4
10uF
3
SN74LVC07APWR
1
U5A
U5B
U5C
DVDD
U4F
U4E
U4D
U4C
U4B 4
2
U4A
DVDD
SN74LVC07APWR
U2
REG1117FA-5.0
EXTERNAL SPI
SN74AHC244PWR
Y1
Y2
Y3
Y4
SN74AHC244PWR
Y1
Y2
Y3
Y4
U1B
A1
A2
A3
A4
G
U1A
C1
.1uF
9
7
5
3
2
4
6
8
1
+5V
20
VCC
GND
10
2
1
1
14
7
2
4
6
8
10
1
3
5
7
9
GND
GND
14
4-2
7
1
R10
220
R9
390
3
R20
2.7K
DVDD
R19
2.7K
DVDD
3
1
3
2
4
GREEN
SML-LX1206GC-TR
D3
SML-LX1206GC-TR
GREEN
D2
SCL
J9
1
3
5
7
9
2
4
6
8
10
2
4
13
4
+5V
U5F
U5E
SGND
TP1
11
KBIRQ
PENIRQ
EXTERNAL I2C
1
3
J11
INTERFACE
I2C INTERFACE
SDA
SCLK
SS
MOSI
DAV
MISO
J6
4
12
10
4
3
2
1
TERMBLOCK-4
J7
DAC PULLUP V
JMP1
DVDD
1
3
5
7
9
2
4
6
8
10
R15
0
R16
0
R17
0
R18
0
IN2
IN1
VBAT2
VBAT1
R11
0
R12
0
R13
0
R14
0
C10
.1uF
C6
.1uF
POWER INTERFACE
J5
5
5
C12
.1uF
C8
.1uF
C13
.1uF
C9
.1uF
SHEET
OF
DOCUMENT CONTROL NO.
DRAWN BY
ENGINEER
C11
.1uF
C7
.1uF
FILE
SIZE
TITLE
REV
6
2
4
6
8
10
4
3
2
1
TOUCH SCREEN
APPROVED
DATE
6
REV
6730 SOUTH TUCSON BLVD., TUCSON, AZ 85706 USA
HIGH PERFORMANCE ANALOG DIVISION
SEMICONDUCTOR GROUP
X-Y INTERFACE
1
3
5
7
9
J10
J8
REVISION HISTORY
ENGINEERING CHANGE NUMBER
A
B
C
D
Physical Description
4.1 Schematics
4.1.1 TSC100PM Motherboard
A
B
C
1
5
9
D
8
C
1
4
0
VSS
VCC
U1
E
A
6
2
F
B
7
3
24LC64I/SN
4
KPD1
88BB2-072 4X4 KEYPAD
C1
1uF
8
+3.3V
E
F
G
H
J
K
L
M
5
6
7
8
10
11
12
13
C4
C3
C2
C1
R4
R3
R2
R1
5
1
3
5
7
9
2
4
6
8
10
1 2
3 4
2
2
I2C INTERFACE
J9
X-Y INTERFACE
J10
SDA
6
SCL
A0
A1
A2
1
2
3
WP
7
+24V
+3.3V
R1
R2
R3
R4
C1
C2
C3
C4
+3.3V
10K
R2
24V ENABLE
33K
2
4
6
8
10
POWER INTERFACE
J5
R4
1
3
5
7
9
+3.3V
3
SHEET
DRAWN BY
OF
R6
1.5K
+24V
19
20
21
22
23
24
10
ENGINEER
RES_SKT
RES_SKT
JMP2
R5
SCLK
SS
MOSI
DAV
MISO
PENIRQ
KBIRQ
TSC2200IPW
3
R3
FMMT3904
Q1
R1
R2
R3
R4
C1
C2
C3
C4
ARNG
AOUT
VREF
VBAT1
VBAT2
AUX1
AUX2
X+
Y+
XY-
U2
10uF
LCD_BIAS_CNTL
JMP1
R1
100K
11
12
13
14
15
16
17
18
26
25
9
7
8
28
27
2
3
4
5
LCD_BIAS_CNTL
C2
10uF
C3
+3.3V
1
+VDD
GND
6
D
1
2
4
6
8
10
INTERFACE
1
3
5
7
9
SIZE
TITLE
TERMBLOCK-2
J4
FILE
VDAC2
V+ 1
J6
REV
4
Approved
DATE
4
REV
6730 SOUTH TUCSON BLVD., TUCSON, AZ 85706 USA
ADVANCED ANALOG PRODUCTS DIVISION
SEMICONDUCTOR GROUP
ECN Number
Revision History
A
B
C
D
Physical Description
4.1.2 TSC2200EVM Daughter Card
4-3
Physical Description
4.2 Component Locations
4.2.1 TSC100PM Motherboard
4-4
Physical Description
4.2.2 TSC2200EVM Daughter Card
4-5
Physical Description
4.3 Bill of Materials
4.3.1 TSC100PM Motherboard
Item No.
Value
Reference
Designators
Qty
Mfg
Mfg’s Part Number
1
0.1µF
C1
1
Panasonic or
Alternate
ECJ-2VB1C104K
Cap 0.1µF 16V 10% Ceramic
Chip 805
Not
Installed
0.1µF
C6-C13
8
Panasonic or
Alternate
ECJ-2VB1C104K
Cap 0.1µF 16V 10% Ceramic
Chip 805
2
0.33µF
C2, C3
2
Panasonic or
Alternate
ECJ-2YB1C334K
Cap 0.33µF 16V 10% Ceramic
Chip 805
3
10µF
C4, C5
2
Panasonic or
Alternate
ECJ-3YB0J106K
Cap 10µF 6.3V 10% Ceramic
Chip 1206
4
D1
1
Micro
Commercial
DL4001
5
D2, D3
2
Lumex
SML-LX1206GC-TR
6
J1
1
AMP
Incorporated
747842-4
DB25 Right Angle Female Conn
w/Board Locks
7
J8
1
AMP
Incorporated
103634-3
4-Pin Right Angle Latching
Header
8
J4
1
CUI-Stack
PJ-102B
2.5mm Power Connector
9
J3
1
On Shore
Technology
ED120/2DS
2 Contact Screw Terminal Block
10
J7
1
On Shore
Technology
ED120/4DS
4 Contact Screw Terminal Block
11
J9
1
Samtec
SLW-102-01-S-D
4-Pin Double Row Low Profile
Socket (2x2)
12
J5, J6, J10
3
Samtec
SLW-105-01-S-D
10-Pin Double Row Low Profile
Socket (2x5)
13
J2
1
Samtec
TSW-105-07-L-D
10-Pin Double Row Header (5x2)
14
J11
1
Samtec
TSW-102-07-L-D
4-Pin Double Row Header (2x2)
15
JMP1
1
Samtec
TSW-103-07-L-S
3-Pin Single Row Header (3x1)
4-6
Description
Diode 1A 50V SMD MELF
LED Green Clear 1206 SMD
16
0
R11, R12,
R13, R14,
R15, R16,
R17, R18
8
Panasonic or
Alternate
ERJ-8GEY0R00V
RES 0Ω 1/8W 5% 1206 SMD
17
220
R10
1
Panasonic or
Alternate
ERJ-8GEYJ221V
RES 220Ω 1/8W 5% 1206 SMD
Physical Description
Item No.
Value
Reference
Designator
Qty
Mfg
Mfg’s Part Number
Description
18
390
R9
1
Panasonic or
Alternate
ERJ-8GEYJ391V
RES 390Ω 1/8W 5% 1206 SMD
19
2.7kΩ
R2, R3, R4,
R19, R20
5
Panasonic or
Alternate
ERJ-8GEYJ272V
RES 2.7KΩ 1/8W 5% 1206 SMD`
20
4.7Ω
R1, R5, R6,
R7, R8
5
Panasonic or
Alternate
ERJ-8GEYJ472V
RES 4.7KΩ 1/8W 5% 1206 SMD
21
TP1
1
Keystone
Electronics
5011
22
U1
1
Texas
Instruments
SN74AHC244PWR
23
U2
1
Texas
Instruments
REG1117-5.0
5V LDO Regulator DDPAK
24
U3
1
Texas
Instruments
REG1117-3.3
3.3V LDO Regulator DDPAK
25
U4, U5
2
Texas
Instruments
SN74LVC07APWR
26
N/A
1
Samtec or
Alternate
SNT-100-BK-TH
27
N/A
1
Keystone
Electronics
or Alternate
1808
¼: x 0.625 Hex 4-40 Threaded
Standoff
28
N/A
2
Keystone
Electronics
or Alternate
8714
¼” x 0.25 Hex 4-40 M/F Threaded
Standoff
29
N/A
2
Building
Fasteners or
Alternate
INT LWZ 004
30
N/A
2
Building
Fasteners or
Alternate
PMS 440 0025 PH
Pan Head Machine Screws 4-40 x
¼” Phillips
31
N/A
3
Building
Fasteners or
Alternate
PMS 440 0050 PH
Pan Head Machine Screws 4-40 x
½” Phillips
32
DDB
Texas
Instruments
6434952
Design Database
33
PWB
Texas
Instruments
6434953
Printed Wiring Board
34
PCA
Texas Instr.
6434954
Printed Circuit Assembly
Multi-Purpose Test Point Loop
Octal Buffers/Drivers with 3-State
Outputs
Hex CMOS Open Drain Buffers
Shorting Jumper
Number 4 Internal Tooth Lock
Washer
4-7
Physical Description
4.3.2 TSC2200EVM Daughter Card
Item No.
Value
Reference
Designators
Qty
Mfg
Mfg’s Part
Number
1
1µF
C1
1
Panasonic
or Alternate
ECJ-2YB1A105K
Cap 1µF 10V 10% Ceramic
Chip 805
2
10µF
C2, C3
2
Panasonic
or Alternate
ECJ-3YB0J106K
Cap 10µF 6.3V 10% Ceramic
Chip 1206
3
J4
1
On Shore
Technology
ED120/2DS
4
J9
1
Samtec
TLW-102-06-G-D
4-Pin Double Row Low Profile
Header (2x2)
5
J5, J6, J10
3
Samtec
TLW-105-06-G-D
10-Pin Double Row Low Profile
Header (2x5)
6
JMP1, JMP2
2
Samtec
TSW-103-07-L-S
3-Pin Single Row Header (3x1)
7
KPD1
1
Grayhill
88BB2-072
4x4 Keypad
8
Q1
1
Zetex
FMMT3904
NPN Silicon Switching
Transistor SOT23 SMD
4-8
Description
2 Contact Screw Terminal Block
9
1.5kΩ
R6
1
Panasonic
or Alternate
ERJ-8GEYJ152V
RES 1.5kΩ 1/8W 5% 1206
SMD
10
10kΩ
R2
1
Panasonic
or Alternate
ERJ-8GEYJ103V
RES 10kΩ 1/8W 5% 1206 SMD
11
33kΩ
R4
1
Panasonic
or Alternate
ERJ-8GEYJ333V
RES 33kΩ 1/8W 5% 1206 SMD
12
100kΩ
R1
1
Yageo
MFR-25FBF-100K
RES 100kΩ 1/4W 1% Axial
13
R1, R3, R5
6
AMP
Incorporated
50863-5
14
U1
1
MicroChip
24LC64I/SN
15
U2
1
Texas
Instruments
TSC2200IPW
16
N/A
2
Samtec or
Alternate
SNT-100-BK-TH
17
E, F, G, H, J,
K, L, M
8
AMP
Incorporated
50864-5
18
N/A
4
Building
Fasteners or
Alternate
MPMS 002 0008
PH
Miniature Spring Socket
64K 12C CMOS Serial
EEPROM
PDA Analog Interface Circuit
Shorting Jumper
Miniature Spring Socket
Pan Head Machine Screws No
2x8mm Phillips
Physical Description
Item No.
Value
Reference
Designator
Qty
Mfg
Mfg’s Part
Number
Description
19
N/A
4
Building
Fasteners
or Alternate
MLWZ 002
No 2 Metric Lock Washer
20
N/A
4
Building
Fasteners or
Alternate
MLWZ 002
No 2 Metric Nut
21
DDB
1
Texas
Instruments
6434946
Design Database
22
PWB
1
Texas
Instruments
6434947
Printed Wiring Board
23
PCA
1
Texas
Instruments
6434948
Printed Circuit Assembly
4-9
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