Texas Instruments TSC2007EVM - Manual (Page 4)

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4.2 Stand-Alone Operation
4.3 USB-MODEVM Interface Power
5 EVM Operation
5.1 Analog Input
5.2 Digital Control
5.3 Default Jumper Locations
EVM Operation
When used as a stand-alone EVM, power can be applied to TP1, referenced to TP3.
CAUTION
Verify that all power supplies are within the safe operating limits shown on the
TSC2007 data sheet (
SBAS405 ) before applying power to the EVM.
The USB-MODEVM interface board can be powered from several different sources:
•
USB
•
6 VDC-10 VDC AC/DC external 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 default
factory configuration). When powered from 6 VDC-10 VDC, either through the J8 terminal block or J9
barrel jack, JMP6 should have a shunt installed on pins 2-3. If power is applied in any of these ways,
onboard regulators 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 interface
board, JMP6 should have no shunt installed. Voltages then are applied to J2 (+5VA), J3 (+5VD), J4
(+1.8VD), and J5 (+3.3VD). The +1.8VD and +3.3VD also can be generated on the board by the onboard
regulators from the +5VD supply; to enable this supply, the switches on SW1 need to be set to enable the
regulators by placing them in the ON position (lower position, looking at the board with text reading
right-side up). If +1.8VD and +3.3VD are supplied externally, disable the onboard regulators by placing
SW1 switches in the OFF position.
Each power supply voltage has an LED (D1-D7) which lights when the power supplies are active.
The following section provides information on the analog input, digital control, and general operating
conditions of the TSC2007EVM.
The analog input sources (touch screen and auxiliary input) can be applied directly to J1 (top or bottom
side) or through signal-conditioning modules available for the modular EVM system.
The digital control signals can be applied directly to J2 (top or bottom side). The modular TSC2007EVM
also can be connected directly to a DSP or microcontroller interface board, such as the USB-MODEVM
interface board if purchased as part of the TSC2007EVM-PDK. See the product folder for the TSC2007 for
a current list of compatible interface and/or accessory boards.
Table 6 provides a list of jumpers found on the EVM and their factory default conditions.
TSC2007EVM and TSC2007EVM-PDK User's Guide 4 SLAU199 – March 2007
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