User's GuideSBAU122 – March 2006
ADS7845EVM and ADS7845EVM-PDK
This user's guide describes the characteristics, operation, and use of theADS7845EVM, both by itself and as part of the ADS7845EVM-PDK. This device is a5-wire touch screen controller evaluation module (EVM) which also has an auxiliaryinput measurement capability. A complete circuit description, schematic diagram, andbill of materials are included.
The following related documents are available through the Texas Instruments web siteat www.ti.com .
EVM-Compatible Device Data Sheets
LiteratureDevice Number
ADS7845 SBAS104REF3125 SBVS046TAS1020B SLES025REG1117-5 SBVS001TPS767D318 SLVS209SN74LVC125A SCAS290SN74LVC1G125 SCES223SN74LVC1G07 SCES296
Contents1 EVM Overview ............................................................................................................... 22 Analog Interface .............................................................................................................. 23 Digital Interface .............................................................................................................. 34 Power Supplies .............................................................................................................. 35 EVM Operation ............................................................................................................... 56 Kit Operation ................................................................................................................. 57 EVM Bill of Materials and Schematic .................................................................................... 10
List of Figures
1 ADS7845EVM-PDK Block Diagram ...................................................................................... 62 Default Software Screen ................................................................................................... 8
List of Tables
1 Analog Interface Pinout ..................................................................................................... 22 Digital Interface Pinout ...................................................................................................... 33 Power Supply Pinout ........................................................................................................ 34 List of Jumpers ............................................................................................................... 55 ADS7845EVM Bill of Materials ........................................................................................... 106 USB-MODEVM Bill of Materials .......................................................................................... 11
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1 EVM Overview
1.1 Features
1.2 Introduction
2 Analog Interface
EVM Overview
•Full-featured evaluation board for the ADS7845 5-wire, resistive touch screen controller (TSC)•Modular design for use with a variety of DSP and microcontroller interface boards
The ADS7845EVM-PDK is a complete evaluation kit, which includes a USB-based motherboard andevaluation software for use with a personal computer running Microsoft Windows™ operating systems(Windows 2000 or higher).
The ADS7845EVM is in Texas Instruments' modular EVM form factor, which allows direct evaluation ofthe ADS7845 performance and operating characteristics, and eases software development and systemprototyping. This EVM is compatible with the 5-6K Interface Board (SLAU104 ) and the HPA-MCUInterface Board (SLAU106 ) from Texas Instruments and additional third-party boards such as the HPA449demonstration board from SoftBaugh, Inc. (www.softbaugh.com ).
The ADS7845EVM-PDK is a complete evaluation/demonstration kit, which includes a USB-basedmotherboard called the USB-MODEVM Interface Board and evaluation software for use with a personalcomputer running Microsoft Windows operating systems.
For maximum flexibility, the ADS7845EVM is designed for easy interfacing to multiple analog sources.Samtec part numbers SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a convenient 10-pin,dual-row, header/socket combination at J1. This header/socket provides access to the analog input pins ofthe TSC. Consult Samtec at www.samtec.com or call 1-800-SAMTEC-9 for a variety of mating connectoroptions.
Table 1. Analog Interface Pinout
Pin Number Signal Description
J1.2 UL Touch screen Upper Left (UL) electrodeJ1.4 LL Touch screen Lower Left (LL) electrodeJ1.6 UR Touch screen Upper Right (UR) electrodeJ1.8 LR Touch screen Lower Right (LR) electrodeJ1.10 WIPER Touch screen Wiper electrodeJ1.12 AUXIN Auxiliary input, 0V to VREFJ1.14 UnusedJ1.16 UnusedJ1.18 REF(–) Tied to analog groundJ1.20 REF(+) External reference source input (2.5V NOM)J1.15 UnusedJ1.11-J1.19 (odd) AGND Analog ground connections (except J1.15)
Microsoft Windows is a trademark of Microsoft Corporation.SPI is a trademark of Motorola, Inc.NI-VISA is a trademark of National Instruments.I
2
C, I
2
S are trademarks of Royal Philips Electronics B.V., The Netherlands.WinZip is a trademark of WinZip Computing, Inc..All trademarks are the property of their respective owners.
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3 Digital Interface
4 Power Supplies
Digital Interface
The ADS7845EVM is designed to easily interface with multiple control platforms. Samtec part numbersSSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a convenient 10-pin, dual-row, header/socketcombination at J2. This header/socket provides access to the digital control and serial data pins of theTSC. Consult Samtec at www.samtec.com or call 1-800-SAMTEC-9 for a variety of mating connectoroptions.
Table 2. Digital Interface Pinout
Pin Number Signal Description
J2.1 UnusedJ2.2 BUSY TSC busy flagJ2.3 SCLK Serial clockJ2.4 DGND Digital groundJ2.5 SCLKR Serial clock return (for DSP host systems)J2.6 UnusedJ2.7 SS Slave select - Active low signal, enables data transfer. Frame sync on DSP host systems.J2.8 UnusedJ2.9 FSR Frame sync return (for DSP host systems)J2.10 DGND Digital groundJ2.11 MOSI Serial data input to TSC from hostJ2.12 UnusedJ2.13 MISO Serial data output from TSC to hostJ2.14 UnusedJ2.15 PENIRQ Pen interrupt output from TSCJ2.16 SCL I
2
C bus serial clockJ2.17 UnusedJ2.18 DGND Digital groundJ2.19 UnusedJ2.20 SDA I
2
C bus data line
J3 provides connection to the common power bus for the ADS7845EVM. Power is supplied on the pinslisted in Table 3 .
Table 3. Power Supply Pinout
Signal Pin Number Signal
Unused 1 2 Unused+5VA 3 4 UnusedDGND 5 6 AGNDUnused 7 8 +VD1+3.3VD 9 10 Unused
When power is supplied to J3, JMP4 allows for one of three different DC voltages to be used as the powersupply of the ADS7845. See the schematic and printed circuit board silkscreen for details.
The ADS7845EVM-PDK motherboard (the USB-MODEVM Interface Board) supplies power to J3 of theADS7845EVM. Power for the motherboard is supplied either through its USB connection or on terminalblocks on the board.
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4.1 TSC Power
4.2 Stand-Alone Operation
4.3 USB-MODEVM Interface Power
4.4 Reference Voltage
Power Supplies
Power for the ADS7845 VCC can be supplied either from +5V or from +3.3V. JMP4 selects which of thesevoltages is routed to the ADS7845. When JMP4 is in the default factory condition (shunt on pins 5-6),power to the TSC comes from J3.3 (+5VA). When the shunt is installed on JMP4 pins 3-4, power comesfrom J3.9 (+3.3VD). A third supply option is to place a shunt on JMP4 pins 1-2, and supply a voltage fromJ3.8 (VD1), which must be within the specified operating range of the ADS7845.
When used as a stand-alone EVM, the analog power can be applied to TP1, referenced to TP2.
CAUTIONVerify that all power supplies are within the safe operating limits shown onthe ADS7845 data sheet before applying power to the EVM.
The USB-MODEVM Interface Board can be powered from several different sources:•USB
•6VDC-10VDC AC/DC wall supply (not included)•Laboratory power supply
When powered from the USB connection, JMP6 should have a shunt from pins 1-2 (this is the defaultfactory configuration). When powered from 6V-10VDC, either through the J8 terminal block or J9 barreljack, JMP6 should have a shunt installed on pins 2-3. If power is applied in any of these ways, onboardregulators generate the required supply voltages and no further power supplies are necessary.
If laboratory supplies are used to provide the individual voltages required by the USB-MODEVM InterfaceBoard, JMP6 should have no shunt installed. Voltages are then applied to J2 (+5VA), J3 (+5VD), J4(+1.8VD), and J5 (+3.3VD). The +1.8VD and +3.3VD can also be generated on the board by the onboardregulators from the +5VD supply; to enable this option, the SW1 switches need to be set in the ONposition (lower position, looking at the board with text reading right-side up) to enable the regulators. If+1.8VD and +3.3VD are supplied externally, disable the onboard regulators by placing the SW1 switchesin the OFF position.
Each power-supply voltage has an LED (D1-D7) that lights when the power supplies are active.
The ADS7845 requires a voltage reference. An external reference may be supplied through J1 pin 20 onthe ADS7845EVM, referenced to analog ground (J1 pin 18 on the ADS7845EVM). JMP1 must be installedacross positions 5-6 in order to route this external reference voltage to the ADS7845.
CAUTIONVerify that the external reference voltage is within the safe operating limitsshown on the ADS7845 data sheet before applying power to the EVM.
A 2.5V reference is supplied on the ADS7845EVM, and can be selected for use by connecting JMP1 pins3-4. Alternatively, the supply voltage can be used as the voltage reference by connecting pins 1-2 onJMP1.
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5 EVM Operation
5.1 Analog Input
5.2 Digital Control
5.3 Default Jumper Locations
6 Kit Operation
6.1 ADS7845EVM-PDK Block Diagram
EVM Operation
The following section provides information on the analog input, digital control, and general operatingconditions of the ADS7845EVM.
The analog input sources (touch screen and auxiliary input) can be applied directly to J1 (top side orbottom side) or through signal-conditioning modules available for the modular EVM system.
The digital control signals can be applied directly to J2 (top side or bottom side). The modularADS7845EVM can also be connected directly to a DSP or microcontroller interface board, such as theHPA449, or to the USB-MODEVM Interface Board if purchased as part of the ADS7845EVM-PDK. For acurrent list of compatible interface and/or accessory boards for the EVM or the ADS7845, see the relevantproduct folder on the TI web site .
Table 4 provides a list of jumpers found on the EVM and the factory default conditions for each one.
Table 4. List of Jumpers
Jumper Shunt Position Jumper Description
JMP1 3-4 Selects reference voltage source to ADS7845. 1-2 selects VCC, 3-4 selects theonboard 2.5V reference, and 5-6 selects the external reference voltage from J1.20.JMP2 CLOSED Connects analog ground (AGND) to digital ground (DGND).Default is connected.JMP3 CLOSED EEPROM Address Select - when installed and used with the USB-MODEVM, firmwarefor the motherboard is executed from the EEPROM on board the ADS7845EVM. Thisis the default mode.JMP4 5-6 Analog Power Select (default is +5VA)
The following section provides information on using the ADS7845EVM-PDK, including setup, programinstallation, and program usage.
A block diagram of the ADS7845EVM-PDK is shown in Figure 1 . The evaluation kit consists of two circuitboards connected together. The motherboard is designated as the USB-MODEVM Interface Board, whilethe daughtercard is the ADS7845EVM described previously in this manual.
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ADS7845EVM
ADS7845
X+
X-
Y+
Y-
VBAT
AUX
MOSI
MISO
SCLK
SS
PENIRQ
EVM Position 1
EVM Position 2
I S, AC97
2
Audio Interface
Control Interface
SPI, I C
2
TAS1020B
USB 8051
Microcontroller
USB
Kit Operation
Figure 1. ADS7845EVM-PDK Block Diagram
The USB-MODEVM Interface Board is intended to be used in USB mode, where control of the installedEVM is accomplished using the onboard USB controller device. Provision is made, however, for driving allthe data buses ( I
2
C™, SPI™, I
2
S™/AC97) externally. The source of these signals is controlled by SW2 onthe USB-MODEVM.
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6.2 Quick Start
Kit Operation
Ensure that the ADS7845EVM is installed on the USB-MODEVM Interface Board. The ADS7845EVMshould be installed in the topmost position, using J11, J12, and J13 on the USB-MODEVM.
Place the CD-ROM into your PC CD-ROM drive. Locate the Setup program on the disk and execute it.The Setup program installs the ADS7845 evaluation software on your PC. Follow the instructions andprompts given.
After the main program is installed, a dialog box appears with instructions for installing NI-VISA 3.2Runtime, a self-extracting archive. Click OK to proceed. A WinZip™ dialog appears. Click Unzip, and thearchive extracts itself and automatically runs the NI-VISA™ 3.2 Runtime installer.
Follow the instructions in the NI-VISA 3.1 Runtime Installer. When prompted for which features to install,do the following:
1. Click on the disk icon next to NI-VISA 3.22. Select, Do not install this feature.3. Click on the disk icon next to USB.4. Select the option which installs this feature.5. Click Next.
Accept the license agreement, and continue the installation.
When the installation completes, click Finish on the ADS7845EVM installer window. You may be promptedto restart your computer.
When installation is complete, attach a USB cable from your PC to the USB-MODEVM Interface Board. Asconfigured at the factory, the board will be powered from the USB interface, so the power indicator LEDson the USB-MODEVM should light. Once this occurs, launch the ADS7845 evaluation software on yourPC.
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6.3 USB-MODEVM Interface Board
Kit Operation
The software should automatically find the ADS7845EVM, and a screen similar to the one in Figure 2should appear.
Figure 2. Default Software Screen
In order to use the touch screen features, a 5-wire, resistive touch screen must be connected to J1 of theADS7845EVM, as described previously.
The simple diagram shown in Section 6.1 shows only the basic features of the USB-MODEVM InterfaceBoard. The board is designed for a TAS1020B streaming audio USB controller with an 8051-based core. Itfeatures two positions for modular EVMs, or one double-wide serial modular EVM may be installed.
For use with the ADS7845, the ADS7845EVM is installed in the topmost EVM slot, which connects theADS7845 digital control interface to the SPI port, realized using the TAS1020B. Because the ADS7845has no audio features, the lower EVM slot (which is connected to the TAS1020B digital audio interface) isnot used.
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6.4 Program Description
Kit Operation
As configured from the factory, the board is ready to use with the ADS7845EVM. However, if external SPIcontrol is desired, the signals may be applied to J15, as long as the SW2 is set so that USB SPI control isdisabled. To view all the functions and configuration options available on this board, see theUSB-MODEVM Interface Board schematic in Section 7.2 .
After the ADS7845EVM-PDK software installation (described in Section 6.2 ), evaluation and developmentwith the ADS7845 can begin.
6.4.1 Touch Screen Functions Panel
The touch screen box in this panel is updated when a touch is detected on the touch screen. As the touchscreen is drawn on, the motion on the touch screen is translated into pixels on this box. The softwaretakes X and Y readings which are shown to the right of the touch screen box.
The display can be cleared by pressing the Clear Graph button on the screen.
6.4.2 Data Acquisition Functions Panel
The ADS7845 provides for measuring an auxiliary input voltage. A data acquisition functions paneldisplays the measured value for this parameter. Measurements are updated only when the touch screen isnot being pressed. Note that these measurements depend on the reference voltage and are affected bythe setting of the power-down bits. The software presumes that the reference voltage is 2.5V.
6.4.3 Configuration Panel
The ADS7845 can be configured to operate in either 8-bit or 12-bit resolution mode. This panel controlsthe mode selection.
Touch screen measurements may be made in either single-ended or differential mode; see the ADS7845data sheet for a discussion of these modes. The touch screen measurement mode may also be selectedin this panel. If single-ended mode is used, ensure that a reference voltage is supplied; however,single-ended measurements are discouraged for touch screen use, because differential mode yields farmore accurate results.
The two power-down bits of the ADS7845 can also be set from this panel. A brief description of the modeselected is shown on the screen when setting these bits; see Table V of the ADS7845 data sheet fordetails on the functions of these bits.
6.4.4 Datalogging
The software can record the data it is taking from the ADS7845 to a tab-delimited file, suitable forimporting into spreadsheets. To do this, first go into the File menu, and select Log Data to File..., whichopens a file-select window and allows you to specify a file to which to write the data. At the same time,this feature enables the Datalogging menu.
When ready to begin recording data to a file, select Datalogging →Start Logging. Data is written to the fileuntil Datalogging →Stop Logging is selected. When the screen is not touched, the AUX values are writtento the file, and the X and Y parameters are written to the file with values of 9999, to indicate that they arenot updated. When the screen is touched, the X and Y parameters are written while the AUX values arewritten to the file as 9999. Because the program constantly updates at a rate of about 400 readings persecond, datalog files can quickly grow large; therefore, log only what is necessary.
The format of the data file has the first column as the time in milliseconds (just a timer in the program,which can arbitrarily start at any number), then X, Y, and AUX columns. Every new reading is a new rowin the file.
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7 EVM Bill of Materials and Schematic
EVM Bill of Materials and Schematic
The following tables contain a complete bill of materials for the modular ADS7845EVM and theUSB-MODEVM Interface Board (included only in the ADS7845EVM-PDK).
Table 5. ADS7845EVM Bill of Materials
Designators Description Manufacturer Mfg. Part Number
R1, R2, R3, R4, R5 0 Ω1/8W 5% Chip Resistor Panasonic ERJ-6GEY0R00VR7, R8 33 Ω1/8W 5% Chip Resistor Panasonic ERJ-6GEYJ330VR6 100 Ω1/8W 5% Chip Resistor Panasonic ERJ-6GEYJ101VR9, R10, R11 2.7K Ω1/8W 5% Chip Resistor Panasonic ERJ-6GEYJ272VR12 10K Ω1/8W 5% Chip Resistor Panasonic ERJ-6GEYJ103VC8 0.47µF 10V Ceramic Chip TDK C1608X5R1A474KTCapacitor, ±10%, X5RC10, C11 1µF 25V Ceramic Chip Capacitor, TDK C2012X5R1E105KT±10%, X5RC7, C9 10µF 16V Ceramic Chip TDK C3216X5R1C106MTCapacitor, ±20%, X5RC1, C2, C3, C4, C5, C6 Chip Capacitor - Not InstalledU1 Touch Screen Controller, 5-Wire Texas Instruments ADS7845EResistiveU3 2.5V Precision Voltage Reference Texas Instruments REF3125AIDBZU2 64K I
2
C EEPROM MicroChip 24LC64-I/SNJ1A, J2A 20-pin SMT Plug Samtec TSM-110-01-L-DV-PJ1B, J2B 20-pin SMT Socket Samtec SSW-110-22-F-D-VS-KJ3A 10-pin SMT Plug Samtec TSM-105-01-L-DV-PJ3B 10 -pin SMT Socket Samtec SSW-105-22-F-D-VS-KADS7845EVM PWB (must be Texas Instruments 6478716RoHS compliant)JMP2, JMP3 2 Position Jumper, 0.1" spacing Samtec TSW-102-07-L-SJMP1, JMP4 2 X 3 Position Header, 0.1" Samtec TSW-103-07-L-DspacingL1, L2 100µH Surface Mount Inductor, API Delevan S1210R-104KShieldedTP1 Miniature Test Point Terminal Keystone Electronics 5000TP2, TP3 Multipurpose Test Point Terminal Keystone Electronics 5011N/A Header Shorting Block Samtec SNT-100-BK-T
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EVM Bill of Materials and Schematic
Table 6. USB-MODEVM Bill of Materials
Designators Description Manufacturer Mfg. Part Number
R4 10 Ω1/10W 5% Chip Resistor Panasonic ERJ-3GEYJ100VR10, R11 27.4 Ω1/16W 1% Chip Resistor Panasonic ERJ-3EKF27R4VR20 75 Ω1/4W 1% Chip Resistor Panasonic ERJ-14NF75R0UR19 220 Ω1/10W 5% Chip Resistor Panasonic ERJ-3GEYJ221VR14, R21, R22 390 Ω1/10W 5% Chip Resistor Panasonic ERJ-3GEYJ391VR13 649 Ω1/16W 1% Chip Resistor Panasonic ERJ-3EKF6490VR9 1.5k Ω1/10W 5% Panasonic ERJ-3GEYJ152VChip ResistorR1, R2, R3, R5, R6, R7, 2.7k Ω1/10W 5% Panasonic ERJ-3GEYJ272VR8 Chip ResistorR12 3.09k Ω1/16W 1% Panasonic ERJ-3EKF3091VChip ResistorR15, R16 10k Ω1/10W 5% Panasonic ERJ-3GEYJ103VChip ResistorR17, R18 100k Ω1/10W 5% Panasonic ERJ-3GEYJ104VChip ResistorRA1 10k Ω1/8W Octal Isolated CTS Corporation 742C163103JTRResistor ArrayC18, C19 33pF 50V Ceramic TDK C1608C0G1H330JChip Capacitor, ±5%, NPOC13, C14 47pF 50V Ceramic TDK C1608C0G1H470JChip Capacitor, ±5%, NPOC20 100pF 50V Ceramic TDK C1608C0G1H101JChip Capacitor, ±5%, NPOC21 1000pF 50V Ceramic TDK C1608C0G1H102JChip Capacitor, ±5%, NPOC15 0.1µF 16V Ceramic TDK C1608X7R1C104KChip Capacitor, ±10%,X7RC16, C17 0.33µF 16V Ceramic TDK C1608X5R1C334KChip Capacitor, +/-20%,Y5VC9, C10, C11, C12, 1µF 6.3V Ceramic Chip TDK C1608X5R0J105KC22, C23, C24, C25, Capacitor, ±10%, X5RC26, C27, C28C1, C2, C3, C4, C5, C6, 10µF 6.3V Ceramic TDK C3216X5R0J106KC7, C8 Chip Capacitor, ±10%, X5RD1 50V, 1A, Diode MELF SMD Micro Commercial Components DL4001D2 Yellow Light Emitting Diode Lumex SML-LX0603YW-TRD3, D4, D6, D7 Green Light Emitting Diode Lumex SML-LX0603GW-TRD5 Red Light Emitting Diode Lumex SML-LX0603IW-TRQ1, Q2 N-Channel MOSFET Zetex ZXMN6A07FX1 6MHz Crystal SMD Epson MA-505 6.000M-C0U8 USB Streaming Controller Texas Instruments TAS1020BPFBU2 5V LDO Regulator Texas Instruments REG1117-5U9 3.3V/1.8V Dual Output LDO Texas Instruments TPS767D318PWPRegulatorU3, U4 Quad, Tri-State Buffers Texas Instruments SN74LVC125APWU5, U6, U7 Single IC Buffer Driver with Open Texas Instruments SN74LVC1G07DBVRDrain o/pU10 Single Tri-State Buffer Texas Instruments SN74LVC1G125DBVRU1 64K 2-Wire Serial EEPROM I
2
C Microchip 24LC64I/SNUSB-MODEVM PCB Texas Instruments 6463995
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7.1 ADS7845EVM Schematic
7.2 USB-MODEVM Schematic
EVM Bill of Materials and Schematic
Table 6. USB-MODEVM Bill of Materials (continued)
Designators Description Manufacturer Mfg. Part Number
TP1, TP2, TP3, TP4, Miniature test point terminal Keystone Electronics 5000TP5, TP6, TP9, TP10,TP11
TP7, TP8 Multipurpose test point Keystone Electronics 5011terminalJ7 USB Type B Slave Connector Mill-Max 897-30-004-90-000000Thru-HoleJ1, J2, J3, J4, J5, J8 2-position terminal block On Shore Technology ED555/2DSJ9 2.5mm power connector CUI Stack PJ-102BJ10 BNC connector, female, AMP/Tyco 414305-1PC mountJ11A, J12A, J21A, J22A 20-pin SMT plug Samtec TSM-110-01-L-DV-PJ11B, J12B, J21B, J22B 20-pin SMT socket Samtec SSW-110-22-F-D-VS-KJ13A, J23A 10-pin SMT plug Samtec TSM-105-01-L-DV-PJ13B, J23B 10-pin SMT socket Samtec SSW-105-22-F-D-VS-KJ6 4-pin double row header (2x2) Samtec TSW-102-07-L-D0.1"J14, J15 12-pin double row header (2x6) Samtec TSW-106-07-L-D0.1"JMP1-JMP4 2-position jumper, Samtec TSW-102-07-L-S0.1" spacingJMP8-JMP14 2-position jumper, Samtec TSW-102-07-L-S0.1" spacingJMP5, JMP6 3-position jumper, Samtec TSW-103-07-L-S0.1" spacingJMP7 3-position dual row jumper, Samtec TSW-103-07-L-D0.1" spacingSW1 SMT, half-pitch 2-position switch C&K Division, ITT TDA02H0SK1SW2 SMT, half-pitch 8-position switch C&K Division, ITT TDA08H0SK1Jumper plug Samtec SNT-100-BK-T
The schematic diagram is provided as a reference.
The schematic diagram is provided as a reference.
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1 2 3 4 5 6
A
B
C
D
6
54321
D
C
B
A
ti
6730 SOUTH TUCSON BLVD., TUCSON, AZ 85706 USA
TITLE
SHEET OF FILE
SIZE DATE REV7-Mar-2006
DRAWN BY
ENGINEER
REVISION HISTORY
REV ENGINEERING CHANGE NUMBER APPROVED
B
DATA ACQUISITION PRODUCTS
HIGH-PERFORMANCE ANALOG DIVISION
SEMICONDUCTOR GROUP
RICK DOWNS
ROBERT BENJAMIN
C:\WORK\ADS7845EVM\SCH\ADS7845EVM
A
11
ADS7845 Evaluation Module
DOCUMENT CONTROL NO. 6478717
+VCC
REF+
REF-
+VCC
+3.3Vd
+VD1
AGNDDGND
SCLK
SS
MOSI
MISO
PENIRQ
UR
LR
WIPER
AUXIN
UL
LL
L1
100uH
+5VA
C7
10uF
R1
0 ohm
R2
0 ohm
R3
0 ohm
R4
0 ohm
R5
0 ohm
R6
100 ohm
C1
NI
C2
NI
C3
NI
C4
NI
C5
NI
C6
NI
GPIO0 2
DGND 4
GPIO1 6
GPIO2 8
DGND 10
GPIO3 12
GPIO4 14
SCL 16
DGND 18
SDA 20
CNTL
1
CLKX
3
CLKR
5
FSX
7
FSR
9
DX
11
DR
13
INT
15
TOUT
17
GPIO5
19
J2
DAUGHTER-SERIAL
TP1
TP2
C9
10uF
TP3
1 2
JMP2
JPR-2X1
2
4
6
1
3
5
7 8
910
11 12
13 14
15 16
17 18
19 20
J1
HEADER-10X2
R7 33
R8 33
VCC
8
VSS
4
SDA 5
SCL 6
A0
1
A1
2
A2
3
WP
7
U2
24LC64I/SN
R10
2.7K
R11
2.7K
C10
1uF
+VCC
+VCC
R9
2.7K
1 2
JMP3
J1A (TOP) = SAM_TSM-110-01-L-DV-P
J1B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K
J2A (TOP) = SAM_TSM-110-01-L-DV-P
J2B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K
J3A (TOP) = SAM_TSM-105-01-L-DV-P
J3B (BOTTOM) = SAM_SSW-105-22-F-D-VS-K
1 2
3 4
5 6
JMP1
VREF INPUT
+VCC
EXT VREF
IN
1OUT 2
GND
3
U3
REF3125AIDBZ
C8
0.47uF
+VCC
+VCC 1
UL
2
UR
3
LL
4
LR
5
GND
6
WIPER
7
AUXIN
8
VREF
9
+VCC 10
PENIRQ 11
DOUT 12
BUSY 13
DIN 14
CS 15
DCLK 16
U1
ADS7845E
12
34
56 JMP4
ANALOG POWER
L2
100uH
-VA 2
-5VA 4
AGND 6
VD1 8
+5VD 10
+VA
1
+5VA
3
DGND
5
+1.8VD
7
+3.3VD
9
J3
DAUGHTER-POWER
C11
1uF
R12
10K
+VCC
1 2 3 4 5 6
A
B
C
D
6
54321
D
C
B
A
!"
6730 SOUTH TUCSON BLVD., TUCSON, AZ 85706 USA
TITLE
SHEET OF FILE
SIZE DATE REV28-Oct-2004
DRAWN BY
ENGINEER
REVISION HISTORY
REV ENGINEERING CHANGE NUMBER APPROVED
B
DATA ACQUISITION PRODUCTS
HIGH PERFORMANCE ANALOG DIVISION
SEMICONDUCTOR GROUP
RICK DOWNS
ROBERT BENJAMIN
D:\USB-MODEVM\USB Motherboard - ModEvm.ddb - Documents\USB Interface
B
12
USB-MODEVM INTERFACE
J9
CUI-STACK PJ102-B
YELLOW
2.5 MM
6VDC-10VDC IN
C15
0.1uF
DOCUMENT CONTROL NO.
CSCHNE 32
CRESET 34
CSYNC 35
CDATI 36
CSCLK 37
MCLKO1 39
MCLKO2 40
RESET 41
VREN 42
SDA 43
SCL 44
XTALO
46
XTALI
47
PLLFILI
48
PLLFILO
1
MCLKI
3
PUR
5
DP
6
DM
7
MRESET
9
DVSS
4
DVSS
16
DVSS
28
AVSS
45
TEST
10
EXTEN
11
CDATO 38
RSTO
12
NC
20
NC
22
P3.0
13
P3.1
14
P3.2/XINT
15
P3.3
17
P3.4
18
P3.5
19
AVDD 2
DVDD 33
DVDD 21
DVDD 8
P1.0 23
P1.1 24
P1.2 25
P1.3 26
P1.4 27
P1.5 29
P1.6 30
P1.7 31
U8
TAS1020BPFB
VCC 1
D- 2
D+ 3
GND 4
J7
897-30-004-90-000000
R9
1.5K
R10
27.4
R11
27.4 C13
47pF
C14
47pF
1
2
3
JMP6
PWR SELECT
C20
100pF
C21
.001uF
R12
3.09K
X1
MA-505 6.000M-C0
C18
33pF
C19
33pF
+3.3VD
VCC
8
VSS
4
SDA 5
SCL 6
A0
1
A1
2
A2
3
WP
7
U1
24LC64I/SN
+3.3VD
C9
1uF
TP9
TP10
R3
2.7K
R5
2.7K
+3.3VD
MCLK
BCLK
LRCLK
I2SDIN
I2SDOUT
INT
MISO
MOSI
SS
SCLK
R13
649
+3.3VD
R4
10
C10
1uF
C11
1uF
C12
1uF
USB SLAVE CONN
EXT PWR IN
6.00 MHZ
6463996
RED
1OE
1
1A
2
1Y 3
2OE
4
2A
5
2Y 6
GND 7
3Y 8
3A
9
3OE
10 4Y 11
4A
12
4OE
13
VCC 14
U3
SN74LVC125APW
1OE
1
1A
2
1Y 3
2OE
4
2A
5
2Y 6
GND 7
3Y 8
3A
9
3OE
10 4Y 11
4A
12
4OE
13
VCC 14
U4
SN74LVC125APW
24
53
U5
SN74LVC1G07DBV
IOVDD
IOVDD
C23
1uF
R6
2.7K
C22
1uF
IOVDD
C27
1uF
+3.3VD
24
53
U7
SN74LVC1G07DBV
C26
1uF
R7
2.7K
+3.3VD
+3.3VD
IOVDD
+1.8VD
+3.3VD
IOVDD
R8
2.7K
+3.3VD
24
53
U6
SN74LVC1G07DBV
IOVDD
C25
1uF
TP11
MRESET
3.3VD ENABLE
1.8VD ENABLE C17
0.33uF
C7
10uF
1GND
3
1EN
4
1IN
5
1IN
6
2GND
9
2EN
10
2IN
11
2IN
12 2OUT 17
2OUT 18
2RESET 22
1OUT 23
1OUT 24
1RESET 28
U9
TPS767D318PWP
R18
100K
R17
100K
+3.3VD
C8
10uF
D5
SML-LX0603IW-TR
D2
SML-LX0603YW-TR
D4
SML-LX0603GW-TR
R19
220
GREEN
USB I2S
USB MCK
USB SPI
USB SPI
USB I2S
USB MCK
+1.8VD
RESET
C24
1uF
USB ACTIVE
USB RST
USB RST
2
4
6
1
3
5
7 8
9 10
11 12
J15
EXTERNAL SPI
2
4
6
1
3
5
7 8
9 10
11 12
J14
EXTERNAL AUDIO DATA
PWR_DWN
J10
EXT MCLK
R20
75
IOVDD
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SW2
SW DIP-8
EXT MCK
2
4
1
3
J6
EXTERNAL I2C
IOVDD
Q1
ZXMN6A07F
Q2
ZXMN6A07F
1 2
3 4
5 6
JMP7
IOVDD SELECT
+5VD
SDA
SCL
+5VD
R15
10K
R16
10K
1 4
2 3
SW1
REGULATOR ENABLE
VIN
3VOUT 2
GND
1
U2
REG1117-5
D1
DL4001 C16
0.33uF
C6
10uF
P3.3
P3.4
P3.5
P1.0
P1.1
P1.2
P1.3
J8
ED555/2DS
TP6
D3
SML-LX0603GW-TR
R14
390
GREEN
A0
A1
A2
1 2
JMP8
1 2
JMP9
1 2
JMP10
1 2
JMP11
1 2
JMP12
1 2
JMP13
1 2
JMP14
24
1
53
U10
SN74LVC1G125DBV
C28
1uF
RA1
10K
1 2 3 4 5 6
A
B
C
D
6
54321
D
C
B
A
!"
6730 SOUTH TUCSON BLVD., TUCSON, AZ 85706 USA
TITLE
SHEET OF FILE
SIZE DATE REV28-Oct-2004
DRAWN BY
ENGINEER
REVISION HISTORY
REV ENGINEERING CHANGE NUMBER APPROVED
B
DATA ACQUISITION PRODUCTS
HIGH-PERFORMANCE ANALOG DIVISION
SEMICONDUCTOR GROUP
RICK DOWNS
ROBERT BENJAMIN
D:\USB-MODEVM\USB Motherboard - ModEvm.ddb - Documents\Daughtercard Interface
B
22
USB-MODEVM INTERFACE
DOCUMENT CONTROL NO. 6463996
GPIO0 2
DGND 4
GPIO1 6
GPIO2 8
DGND 10
GPIO3 12
GPIO4 14
SCL 16
DGND 18
SDA 20
CNTL
1
CLKX
3
CLKR
5
FSX
7
FSR
9
DX
11
DR
13
INT
15
TOUT
17
GPIO5
19
J12
DAUGHTER-SERIAL
+5VD
+5VA
1 2
JMP2
1 2
JMP1
JPR-2X1
+5VA +5VD
J2
+5VA
J3
+5VD
+5VA +5VD
C2
10uF
C3
10uF
J4
+1.8VD
J5
+3.3VD
C4
10uF
C5
10uF
J1
-5VA
C1
10uF
A0(+) 2
A1(+) 4
A2(+) 6
A3(+) 8
A4 10
A5 12
A6 14
A7 16
REF- 18
REF+ 20
A0(-)
1
A1(-)
3
A2(-)
5
A3(-)
7
AGND
9
AGND
11
AGND
13
VCOM
15
AGND
17
AGND
19
J11
DAUGHTER-ANALOG
GPIO0 2
DGND 4
GPIO1 6
GPIO2 8
DGND 10
GPIO3 12
GPIO4 14
SCL 16
DGND 18
SDA 20
CNTL
1
CLKX
3
CLKR
5
FSX
7
FSR
9
DX
11
DR
13
INT
15
TOUT
17
GPIO5
19
J22
DAUGHTER-SERIAL
+5VD
+5VA
A0(+) 2
A1(+) 4
A2(+) 6
A3(+) 8
A4 10
A5 12
A6 14
A7 16
REF- 18
REF+ 20
A0(-)
1
A1(-)
3
A2(-)
5
A3(-)
7
AGND
9
AGND
11
AGND
13
VCOM
15
AGND
17
AGND
19
J21
DAUGHTER-ANALOG
+1.8VD
+3.3VD
+1.8VD
+3.3VD
1
2
3
JMP5
1 2
JMP3
1 2
JMP4
R2
2.7K
R1
2.7K
IOVDD
-5VA
-5VA
-5VA
MCLK
BCLK
LRCLK
I2SDIN
I2SDOUT
MISO
MOSI
SS
SCLK
RESET
INT
PWR_DWN
P3.3
P3.4
P3.5
P1.0
SDA
SCL
P1.1
P1.2
P1.3
TP1 TP2 TP3
TP5
TP4
TP7
AGND
TP8
DGND
R21
390
R22
390
D7
SML-LX0603GW-TR
GREEN
D6
SML-LX0603GW-TR
GREEN
J11A (TOP) = SAM_TSM-110-01-L-DV-P
J11B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K
J12A (TOP) = SAM_TSM-110-01-L-DV-P
J12B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K
J13A (TOP) = SAM_TSM-105-01-L-DV-P
J13B (BOTTOM) = SAM_SSW-105-22-F-D-VS-K
J21A (TOP) = SAM_TSM-110-01-L-DV-P
J21B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K
J22A (TOP) = SAM_TSM-110-01-L-DV-P
J22B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K
J23A (TOP) = SAM_TSM-105-01-L-DV-P
J23B (BOTTOM) = SAM_SSW-105-22-F-D-VS-K
-VA 2
-5VA 4
AGND 6
VD1 8
+5VD 10
+VA
1
+5VA
3
DGND
5
+1.8VD
7
+3.3VD
9
J13
DAUGHTER-POWER
-VA 2
-5VA 4
AGND 6
VD1 8
+5VD 10
+VA
1
+5VA
3
DGND
5
+1.8VD
7
+3.3VD
9
J23
DAUGHTER-POWER
EVALUATION BOARD/KIT IMPORTANT NOTICE
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATIONPURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling theproduct(s) must have electronics training and observe good engineering practice standards. As such, the goods being provided arenot intended to be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations,including product safety and environmental measures typically found in end products that incorporate such semiconductorcomponents or circuit boards. This evaluation board/kit does not fall within the scope of the European Union directives regardingelectromagnetic compatibility, restricted substances (RoHS), recycling (WEEE), FCC, CE or UL, and therefore may not meet thetechnical requirements of these directives or other related directives.Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BYSELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDINGANY 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 allclaims arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility totake any and all appropriate precautions with regard to electrostatic discharge.EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHERFOR 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 ofpatents or services described herein.
Please read the User’s Guide and, specifically, the Warnings and Restrictions notice in the User’s Guide prior to handling theproduct. This notice contains important safety information about temperatures and voltages. For additional information on TI’senvironmental and/or safety programs, please contact the TI application engineer or visit www.ti.com/esh .No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, orcombination in which such TI products or services might be or are used.
FCC Warning
This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATIONPURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, andcan radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15of FCC rules, which are designed to provide reasonable protection against radio frequency interference. Operation of thisequipment in other environments may cause interference with radio communications, in which case the user at his own expensewill be required to take whatever measures may be required to correct this interference.
EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the input voltage range of 3.3V to 5V and the output voltage range of 0V to 5V.Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there arequestions 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 theEVM. Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the loadspecification, please contact a TI field representative.During normal operation, some circuit components may have case temperatures greater than 30 °C. The EVM is designed tooperate properly with certain components above 85 °C as long as the input and output ranges are maintained. These componentsinclude but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types ofdevices can be identified using the EVM schematic located in the EVM User's Guide. When placing measurement probes nearthese devices during operation, please be aware that these devices may be very warm to the touch.
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TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products andapplications using TI components. To minimize the risks associated with customer products and applications, customers shouldprovide adequate design and operating safeguards.TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, maskwork right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or servicesare used. Information published by TI regarding third-party products or services does not constitute a license from TI to use suchproducts or services or a warranty or endorsement thereof. Use of such information may require a license from a third party underthe patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI.Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and isaccompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is anunfair and deceptive business practice. TI is not responsible or liable for such altered documentation.Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or servicevoids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive businesspractice. TI is not responsible or liable for any such statements.TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product wouldreasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreementspecifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramificationsof their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-relatedrequirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding anyapplications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and itsrepresentatives against any damages arising out of the use of TI products in such safety-critical applications.TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products arespecifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet militaryspecifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade issolely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements inconnection with such use.TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI productsare designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use anynon-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements.Following are URLs where you can obtain information on other Texas Instruments products and application solutions:
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