Fiber Opt Click 5V is a compact add-on board that adds fiber-optic communication to your design. This board features one IF-D91, a fiber-optic photodiode, and one IF-E97, a fiber-optic LED, both from Industrial Fiber Optics. It provides a plastic optic connection feature over a plastic fiber cable with data rates of up to 512Kbps. Received data from the IF-D91 photodiode is filtered and amplified through dual operational amplifier, the MCP6022 from Microchip, and sent for further processing via selected mikroBUS™ lines. This Click board™ makes the perfect solution for high-speed digital data links, local area networks, video links, EMC/EMI signal isolation, fiber optic modems, and more.
Fiber Opt Click 5V is supported by a mikroSDK compliant library, which includes functions that simplify software development. This Click board™ comes as a fully tested product, ready to be used on a system equipped with the mikroBUS™ socket.
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Fiber Opt Click 5V is based on one IF-D91, a fiber-optic photodiode, and one IF-E97, a fiber-optic LED, both from Industrial Fiber Optics. IF-D91 is a high-speed photodiode detector housed in a connector-less plastic fiber optic package, where optical response extends from 400 to 1100nm, making it compatible with a wide range of visible and near-infrared LED and laser diode sources. The detector package features an internal micro-lens and a precision-molded PBT housing to ensure efficient optical coupling with standard 1000μm core 2.2mm jacketed plastic fiber cable capable of 100Mbps data rates. The IF-D91 can also be used for analog video links with bandwidths up to 70MHz.
The other precision-molded PBT housing with internal micro-lens, the IF-E97, is a high-optical-output visible red LED. The housing ensures efficient optical coupling with the same standard jacketed plastic fiber cable. The output spectrum is produced by a GaAlAs die which peaks at 650nm, representing an optimal transmission window for PMMA plastic optical fiber. The visible red light has low attenuation in PMMA plastic fiber, aids troubleshooting installations, and is the main reason the IF-E97 achieves data rates of 1Mbps.
This Click board™ communicates with the host MCU over selectable pins of the mikroBUS™ socket, the UART, or some general-purpose pins. Communication can be selected through the GPIO UART selection jumper, as UART is selected by default. Otherwise, communication can be achieved directly through GPIO pins, where PWM and INT pins of the mikroBUS™ socket have that role. Also, using AN pin, it is possible to check the analog voltage of the fiber-optic photodiode.
This Click board™ can be operated only with a 5V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used, as a reference, for further development.
Can be used for high-speed digital data links, local area networks, video links, EMC/EMI signal isolation, fiber optic modems, and more
IF-D91 - fiber-optic photodiode from Industrial Fiber Optics
IF-E97 – fiber-optic LED from Industrial Fiber Optics
MCP6022 – dual operational amplifier from Microchip
High optical power, internal micro-lens for efficient optical coupling, no interference, connector-less fiber termination, mates with standard 1000μm core and 2.2mm jacketed plastic fiber cable, low transmission loss, and more
Click board size
M (42.9 x 25.4 mm)
This table shows how the pinout on Fiber Opt Click 5V corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
|Analog Signal||AN||1||AN||PWM||16||PWM||GPIO RX|
|LD1||PWR||-||Power LED Indicator|
|J1-J2||GPIO UART||Right||Communication Lines Selection: Left position GPIO, Right position UART|
|Output Spectrum Peak||-||650||-||nm|
|Output Data Rate||-||1||-||Mbps|
|Input Data Rate||-||100||-||Mbps|