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DLPC3470 Datasheet(PDF) 37 Page - Texas Instruments

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Part # DLPC3470
Description  Display and Light Controller
PDF  70 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

DLPC3470 Datasheet(HTML) 37 Page - Texas Instruments

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Pat N
Pat 1
Pattern
Display
Internally
Generated
VSync
Pat 0
Pat 1
Trigger Out 1
(Set Trigger)
Trigger Out 2
(Pattern Trigger)
Pat
M
Pattern Data
Pattern Data
Pattern Data
Illuminator
tDark
tExposure
tD2
Pat 0
Blue
LED
Blue
LED
Blue
LED
Blue
LED
Blue
LED
Blue
LED
tD2
tD2
tD2
tD2
tD1
tD1
tD2
tDark
tExposure
tDark
tExposure
tDark
tExposure
tExposure
tDark
tExposure
37
DLPC3470
www.ti.com
DLPS110 – APRIL 2018
Product Folder Links: DLPC3470
Submit Documentation Feedback
Copyright © 2018, Texas Instruments Incorporated
8.3.1.2.1
Free Running Mode
In free running mode the DLPC3470 controller generates an internal synchronization signal to display pre-stored
patterns. User sends an I2C command to instruct DLPC3470 controller to start download of the 1D patterns from
flash memory into DLPC3470 controller’s internal memory and displaying of the 1D patterns.
Figure 21. Free Running Mode
•
Multiple 1D patterns are displayed within internally generated sync signal. tExposure (exposure time) and tDark
(dark time) is same for all the 1D patterns within one internally generated sync signal.
•
Blue LED is configured to be ON for each pattern.
•
TRIG_OUT_1 delay (tD1) is configured with reference to internally generated VSync signal. TRIG_OUT_1 is
set once within internally generated synchronization signal.
•
TRIG_OUT_2 delay (tD2) is configured with reference to start of the pattern. TRIG_OUT_2 is set once for
each 1D pattern.
8.3.1.2.2
Trigger In Mode
Trigger In mode provides higher level of control to the user for displaying patterns. In this mode, user controls
when to display the pattern by sending an external trigger signal to the DLPC470 controller. The DLPC3470
controller outputs a Pattern Ready signal to let the user know when DLPC3470 controller is ready to accept an
external trigger signal.



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