Texas Instruments TSC2003EVM Evaluation Module TSC2003EVM TSC2003EVM 데이터 시트
제품 코드
TSC2003EVM
www.ti.com
4.2
Stand-Alone Operation
4.3
USB-MODEVM Interface Power
4.4
Reference Voltage
5
EVM Operation
5.1
Analog Input
EVM Operation
When used as a stand-alone EVM, power can be applied to TP2, referenced to TP1.
CAUTION
Verify that all power supplies are within the safe operating limits shown on
the
the
before applying power to the EVM.
The USB-MODEVM Interface board can be powered from several different sources:
•
USB
•
6VDC-10VDC AC/DC external wall supply (not included)
•
Lab 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 6V-10VDC, 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.
factory configuration). When powered from 6V-10VDC, 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 lab supplies are used to provide the individual voltages required by the USB-MODEVM Interface, 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 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.
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 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 will light when the power supplies are active.
The TSC2003 has an internal voltage reference. An external reference may be supplied through pin 20 of
J1 on the TSC2003EVM, referenced to analog ground (pin 18 of J1 on the TSC2003EVM). JMP1 must be
installed in order to route this external reference voltage to the TSC2003.
J1 on the TSC2003EVM, referenced to analog ground (pin 18 of J1 on the TSC2003EVM). JMP1 must be
installed in order to route this external reference voltage to the TSC2003.
CAUTION
Verify that the external reference voltage is within the safe operating limits
shown on the
shown on the
before applying power to the EVM. Also,
program the TSC2003 to use an external reference, if one is used.
The following section provides information on the analog input, digital control, and general operating
conditions of the TSC2003EVM.
conditions of the TSC2003EVM.
The analog input sources (touch screen, auxiliary inputs, and battery inputs) can be applied directly to J1
(top or bottom side) or through signal conditioning modules available for the modular EVM system.
(top or bottom side) or through signal conditioning modules available for the modular EVM system.
TSC2003EVM and TSC2003EVM-PDK User's Guide
4
SBAU109 – March 2005