HFBR-2115TZ

HFBR-1115TZ Transmitter HFBR-2115TZ Receiver Fiber Optic Transmitter and Receiver Data Links for 125 MBd Data Sheet Description The HFBR-1115TZ/-2115TZ series of data links are highperformance, cost-efficient, transmitter and receiver modules for serial optical data communication applications specified at 100 Mbps for FDDI PMD or 100 Base-FX Fast Ethernet applications. These modules are designed for 50 or 62.5 μm core multimode optical fiber and operate at a nominal wavelength of 1300 nm. They incorporate our high performance, reliable, long-wavelength, optical devices and proven circuit technology to give long life and consistent performance. Transmitter The transmitter utilizes a 1300 nm surface-emitting InGaAsP LED, packaged in an optical subassembly. The LED is dc-coupled to a custom IC which converts differentialinput, PECL logic signals, ECL-referenced (shifted) to a +5 V power supply, into an analog LED drive current. Receiver The receiver utilizes an InGaAs PIN photodiode coupled to a custom silicon transimpedance preamplifier IC. The PIN-preamplifier combination is ac-coupled to a custom quantizer IC which provides the final pulse shaping for the logic output and the Signal Detect function. Both the Data and Signal Detect Outputs are differential. Also, both Data and Signal Detect Outputs are PECL compatible, ECLreferenced (shifted) to a +5 V power supply. Features Full compliance with the optical performance requirements of the FDDI PMD standard Full complianc...