Texas Instruments DLP3010, Руководство пользователя, Страница: 8 / 13

Circuit Description
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8 DLPU070B – July 2018 – Revised February 2019
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DLP3010 Light Control EVM User’s Guide
7.3 DLP3010 Light Control Trigger Description
(1)
Install Jumper J11 to set Trigger IN/OUT voltage on the EVM (Jumper is not included by default). For 3.3-V signal level: Connect
pin 2 and p 3 of J11. For 1.8-V signal level : Connect pin 1 and pin 2 of J11.
(2)
See IMPORTANT note below.
Table 6. DLP3010 Light Control Trigger Description
(1)
DLPC3478
PIN
J4 PIN CONNECTOR
I/O FUNCTION
NO. DESC
3DR 5 3DR_BF Input
For light control applications: Reserved for external trigger signal (Input).
Applicable to Internal Pattern Streaming Mode only.
The 3DR pin on the DLPC3478 can be used as a 3D left or right
reference indicator or as trigger input signal for light control application. A
jumper on J3 has to be installed to determine the use case for this pin.
For display application: Connect pin 1 and pin 2 of J3.
For light control application: Connect pin 2 and pin 3 of J3.
TSTPT_4
(2)
7 TSTPT_4_BF Output TRIG_OUT_1 signal.
GPIO_06 3 GPIO_6_BF Output Pattern Ready signal. Applicable to Internal Pattern Streaming Mode only.
GPIO_07 4 GPIO_7_BF Output TRIG_OUT_2_signal.
IMPORTANT: .
The Rev A Display Boards use a level shifter which changes the incoming signal level to
1.8 V. The correct voltage level for the DLP controller is 3.3 V. If EVM does not detect the
input signal correctly, modify the placement of resistors R32 and R35.
•
Rotate R35 to disconnect pull-up resistor from the 1.8-V supply.
• Connect free end of R35 to 3.3 V. The 3.3-V connection at R32 can be used.