J24
J22
J28
J25
Pin 3
Pin 2
Pin 1
Pin 3
Pin 2
Pin 1
Pin 3
Pin 2
Pin 1
Pin 3
Pin 2
Pin 1
DLP LightCrafter 9000 Connections
20
DLPU028C – October 2014 – Revised November 2016
Copyright © 2014–2016, Texas Instruments Incorporated
DLP LightCrafter 6500 and 9000 Module Overview
1.6.1 DLP LightCrafter 9000 LED Enable and PWM Outputs
The LED enables on J26 are low-current 3.3-V outputs and should not be used to drive LEDs directly. The
enables should be used as a control to enable a regulator that provides the necessary current to the
LEDs. The PWM outputs are also 3.3-V outputs and used for controlling the current to the LEDs, which
controls the brightness.
NOTE:
The 12-V DC output on J26 should not be used to power the LED drive circuitry as it does
not provide the necessary current when all three LED enables are simultaneous turned on.
Doing so can cause a drop in the 12-V supply to the EVM regulator circuitry and reset the
controller.
1.6.2 DLP LightCrafter 9000 Trigger Input and Output Voltage Selectors
The trigger inputs on J23 are inputs from external devices to control the pattern sequence. While trigger
input 2 is high, trigger input 1 will advance the pattern sequence to the next pattern in the sequence on
every pulse.
The trigger outputs on J27 are outputs to control external devices. While trigger output 1 frames the
exposure time of the pattern, trigger output 2 pulses to mark the beginning of each pattern.
Both input and output triggers have voltage level selectors. Use J22, J24, J25, and J28 to select the
voltage as shown in
. If no voltage is selected, then the onboard logic will not be functional and
any outgoing or incoming signals will not be available.
Figure 1-8. DLP LightCrafter 9000 Trigger Voltage Level Selectors