Texas Instruments TSC2017 Performance Demonstration Kit TSC2017EVM-PDK TSC2017EVM-PDK 데이터 시트
제품 코드
TSC2017EVM-PDK
Power Supplies
www.ti.com
4
Power Supplies
J3 provides connection to the common power bus for the TSC2017EVM. Power is supplied on the pins
listed in
listed in
Table 3. Power Supply Pinout
Signal
Pin Number
Signal
Unused
1
2
Unused
Unused
3
4
Unused
DGND
5
6
AGND
+1.8VD
7
8
Unused
+3.3VD
9
10
Unused
When power is supplied to J3, JP1 allows for one of two different dc voltages to be selected as the power
source for the TSC. See the schematic and PCB silkscreen for details.
source for the TSC. See the schematic and PCB silkscreen for details.
The TSC2017EVM-PDK motherboard (the USB-MODEVM interface board) supplies power to J3 of the
TSC2017EVM. Power for the motherboard is supplied either through its USB connection or via terminal
blocks on the board.
TSC2017EVM. Power for the motherboard is supplied either through its USB connection or via terminal
blocks on the board.
4.1
TSC Power
Power for the TSC2017 VDD can be supplied either from the +1.8-VD terminal or from the +3.3-VD
terminal.
terminal.
JP1 selects the voltage that is routed to the TSC2017. When JP1 is in the default factory condition (shunt
on pins 1-2), power to the TSC comes from J3.9 (+3.3 VD). When the shunt is installed on JP1 pins 2-3,
power comes from J3.7 (+1.8 VD). Removing the shunt on JP1, the user can connect any dc power
supply between 1.6 VD and 3.6 VD to V
on pins 1-2), power to the TSC comes from J3.9 (+3.3 VD). When the shunt is installed on JP1 pins 2-3,
power comes from J3.7 (+1.8 VD). Removing the shunt on JP1, the user can connect any dc power
supply between 1.6 VD and 3.6 VD to V
CC
by connecting the power to JP1 pin 2.
Table 4. Power Selection Options: JP1
Shunt on Pins
VDD
Voltage from J3 Pin
1-2
+3.3 VD
9
2-3
+1.8 VD
7
Removed
+1.6 VD to +3.6 VD
External
4.2
Standalone Operation
When used as a standalone EVM, power can be applied to TP1 (V
CC
), referenced to TP3 (AGND).
CAUTION
Verify that all power supplies are within the safe operating limits shown on the
TSC2017 data sheet (
TSC2017 data sheet (
) before applying power to the EVM.
4.3
USB-MODEVM Interface Power
The USB-MODEVM interface board can be powered from several different sources:
•
USB
•
6-VDC to 10-VDC ac/dc external wall supply (not included)
•
Laboratory power supply
When powered from the USB connection, JMP6 must have a shunt from pins 1-2 (this is the default
factory configuration). When powered from 6 VDC to 10 VDC, either through the J8 terminal block or J9
barrel jack, JMP6 must 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 6 VDC to 10 VDC, either through the J8 terminal block or J9
barrel jack, JMP6 must 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.
4
TSC2017EVM and TSC2017EVM-PDK
SLAU305A – January 2010 – Revised June 2010
Copyright © 2010, Texas Instruments Incorporated