Connector and Test Point Descriptions
4.1.7
J7: VLDO1, GND
J7 pins 1 and 2 are connected to the positive output of linear regulator LDO1. J7 pins 2 and 4 are the
GND connection for LDO1. A load can be connected between J7 pins 1 and 2 (VLDO1) and J13 pins 3
and 4 (GND).
LDO1 is able to supply a load current up to 200 mA.
4.1.8
J8: VLDO2, GND
J8 pins 1 and 2 are connected to the positive output of linear regulator LDO2. J8 pins 2 and 4 are the
GND connection for LDO2. A load can be connected between J8 pins 1 and 2 (VLDO2) and J8 pins 3 and
4 (GND).
LDO2 is able to supply a load current up to 200 mA.
4.1.9
J9: VDCDC1, GND
J9 pins 3 and 4 are connected to the positive output of the step-down converter DCDC1. J9 pins 1 and 2
are the GND connection of DCDC1. A load can be connected between J9 pins 3 and 4 (VDCDC1) and J9
pins 1 and 2 (GND).
Refer to
for information on the maximum output current and default output voltage of DCDC1.
4.1.10
J10: VDCDC2, GND
J10 pins 3 and 4 are connected to the positive output of the step-down converter DCDC2. J10 pins 1 and
2 are the GND connection of DCDC2. A load can be connected between J10 pins 3 and 4 (VDCDC2) and
J10 pins 1 and 2 (GND).
Refer to
for information on the maximum output current and default output voltage of DCDC2.
4.1.11
J11: VDCDC3, GND
J11 pins 3 and 4 are the positive output of the step-down converter DCDC3. J11 pins 1 and 2 are the
GND connection of DCDC3. A load can be connected between J11 pins 3 and 4 (VDCDC3) and J11 pins
1 and 2 (GND).
Refer to
for information on the maximum output current and default output voltage of DCDC3.
4.1.12
J12: I
2
C Interface
J12 is a 10-pin interface connector to connect to the I
2
C interface.
4.1.13
J13: I
2
C Interface
J13 is a 14-pin interface connector to connect to the I
2
C interface. This connector is not assembled in the
factory default EVM setup.
4.1.14
J14: AD_IN1
–
4, BYPASS, INT_LDO, GND
AD_IN1, AD_IN2, AD_IN3, and AD_IN4 are the external inputs of the 10-bit ADC. Connect an external
voltage source or touch screen (If configured as touch screen controller) to these pins. See the
for additional information on the touch screen interface and ADC input configuration.
J14 pin 5 is connected to BYPASS. BYPASS can be used as an internal reference for the ADC. A 10-
µ
F
capacitor is connected from BYPASS to GND (C10).
J14 pin 6 is connected to the output of the internal LDO, INT_LDO. This LDO provides power for the touch
screen controller (TSREF). A 2.2-
µ
F capacitor is connected from INT_LDO to GND (C13).
9
SLVU291B
–
April 2010
–
Revised September 2011
TPS6507xEVM
Copyright
©
2010
–
2011, Texas Instruments Incorporated