SPFBFT00303
SPFBFT00303 is Optical Bidirectional Transceiver manufactured by Avago Technologies.
description of plete 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 mul.. 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
ALARM Receiving amplifier
Photodiode
Figure 1. Basic functional units of SPF BFT3 03
Safety Hints Applications of new chip technologies lead to increasing optical efficiency and growing and higher levels of optical performance. We therefore remend that the current versions of the IEC 60825-1 and EN 60825-1 standards are taken into account right from the outset, i.e. at the equipment development stage, and that suitable protection facilities are provided.
Basic Specification
Absolute maximum ratings
Parameter Storage Temperature Range Operating Temperature Range Soldering Temperature (≤ 10 seconds more than 4,5 mm apart from package; details see app. note) Maximum optical input power onto...