Texas Instruments OPT3006, User Manual

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Non-
Functional
Mechanical
Reference
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Schematic, PCB Layout, and Bill of Materials
15 SBOU181 – October 2016
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OPT3006EVM User's Guide
4 Schematic, PCB Layout, and Bill of Materials
4.1 Schematic
Figure 21 shows the complete schematic of the OPT3006EVM. SDA and SCK are pulled up by the SM-
USB-DIG Platform so there are no pull-up resistors present. R2 is a pull-up resistor for the interrupt signal.
C1 is a bypass capacitor for VDUT, and R4 is a jumper to tie the address pin to ground. If another
address is desired, remove R4 and install a wire to the pad or via, and then to the appropriate signal
source.
Figure 21. OPT3006EVM Schematic, Including MHR046 FPCB
An OPT3006 with no electrical connection, marked with Non-Functional Mechanical Reference , is
mounted onto the OPT3006EVM for size and visual evaluation; it is more difficult to evaluate the thinness
of the functional OPT3006 because of the placement. The functional OPT3006 is mounted on an FPCB
labeled
MHR046 , and is mounted on the back side of the board so that the LED light from the SM-USB-
DIG Platform is directed away from the device. Also, no additional LEDs are installed on the test board in
order to reduce total ambient light around the device. The back side of the board is mostly planar;
mounting holes are included to accommodate evaluation.
Figure 22 shows the schematic for MHR046.