2 MBd SERCOS Fiber Optic Receiver

The HFBR-0600 components are capable of operation at symbol rates from DC to over 2 MBd and distances from 0 to over 20 metres. The HFBR-1602 and HFBR-1604 transmitters contain a 655-nm AlGaAs emitter capable of efficiently launching optical power into 1000 mm plastic optical fiber. The optical output is specified at the end of 0.5 m of plastic optical fiber.

The HFBR-1604 is a selected version of the HFBR-1602, with power specified to meet the SERCOS high attenuation specifications.

The HFBR-2602 receiver incorporates an integrated photo IC containing a photo detector and dc amplifier driving an open-collector Schottky output transistor. The HFBR-2602 is designed for direct interfacing to popular logic families. The absence of an internal pull-up resistor allows the open-collector output to be used with logic families such as CMOS requiring voltage excursions higher than VCC. The HFBR-2602 has a dynamic range of 15 dB.