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SBOU155B – October 2015 – Revised February 2017
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OPT8241 Evaluation Module
4
Hardware
4.1
Block Diagram
The OPT8241 sensor provides the modulation for the internal pixel array as well as for the external
illumination drivers. The illumination drivers in-turn drive the laser illumination on the illumination board.
The receiver light is focused using a lens on to the OPT8241 sensor. The depth correlation data obtained
by the OPT8241 sensor is digitized and provided to the OPT9221 ToF Controller (TFC), the TFC then
processes and provides the distance output for each pixel. A Cypress FX2 chip is used as a USB
transceiver to enable PC-based acquisition of data and to control the configuration of the CDK
dynamically.
Figure 5. CDK Diagram
4.2
Design Specifications
The hardware consists of an assembly of customizable boards. The hardware comes assembled by
default and it is not recommended to disassemble the hardware. The individual boards are listed below
with their main constituents:
•
Sensor board
–
Sensor, lens holder, lens
–
TFC, DDR2 memory
–
USB transceiver
•
Illumination board
–
Lasers , diffuser, diffuser holder
–
Laser driver
The overall specifications of the CDK hardware are listed in
Table 1
.
