SPFBFT00303

SPF BFT 003 03 Optical Bidirectional Transceiver for byteflight Data Sheet Short description of complete functional unit The device consists of a LED mounted on a large area photodiode for bidirectional optical transmission in half duplex mode. LED and photodiode are driven by the mulwww.DataSheet4U.com tifunction IC E100.34C2 from ELMOS. The transmitting and receiving functional units with ELMOS-IC E100.34C2 may be split into the following blocks: Features Optical transmitter and receiver for maximum datarate 10 Mbaud (half duplex burst mode) Transmitter: LED with 650 nm for working in low attenuation range of PMMA fiber Receiver: Photodiode with preamp, digitizer with DC elimination circuit (tracked decision threshold), Sleep and Wake-up-Function, output stage (electrical output driver) Built in transmitter and receiver gate for half duplex mode (mutual blocking of transmitter and receiver) Operation at 5V or 8V-11V power supply voltage Built in pulse width detection for indicating Sync, Alarm and continuous light on (integrated time basis to differentiate and evaluate Sync, Alarm and Continuous Light conditions Alarm output) VDD2 Diagnose function for photocurrent Mechanical assembly: 6 Pin CAI package for easy coupling of POF (plastic optical fiber) with insert Transmitter LED Driver LEDO Transmitter /Receiver Gate LED GND VDD1 DO PDI DI ALARM Receiving amplifier Photodiode Figure 1. Basic functional units of SPF BFT3 03 Safety Hints...