125 Megabaud Versatile Link - Avago Technologies - #1

The 125 MBd Versatile Link (HFBR-0507Z Series) is the most cost-effective fiber-optic solution for transmission of 125 MBd data over 100 meters. The data link consists of a 650 nm LED transmitter, HFBR-15X7Z, and a PIN/pre-amp receiver, HFBR-25X6Z. These can be used with low-cost plastic or silica fiber. One mm diameter plastic fiber provides the lowest cost solution for distances under 25 meters. The lower attenuation of silica fiber allows data transmission over longer distance, for a small difference in cost. These components can be used for high speed data links without the problems common with copper wire solutions, at a competitive cost.

The HFBR-15X7Z transmitter is a high power 650 nm LED in a low cost plastic housing designed to efficiently couple power into 1 mm diameter plastic optical iber and 200 urn Hard Clad Silica (HCS⁸) fiber. With the recom­mended drive circuit, the LED operates at speeds from 1-125 MBd. The HFBR-25X6Z is a high bandwidth analog receiver containing a PIN photodiode and internal tran­simpedance ampliier. With the recommended applica­tion circuit for 125 MBd operation, the performance of the complete data link is specified for of 0-25 meters with plastic fiber and 0-100 meters with 200 um HCS® fiber. A wide variety of other digitizing circuits can be combined with the HFBR-0507Z Series to optimize perfor-mance and cost at higher and lower data rates.

• RoHS-compliant

• Data transmission at signal rates of 1 to 125 MBd over distances of 100 meters

• Compatible with inexpensive, easily terminated plas­tic optical fiber, and with large core silica fiber

• High voltage isolation

• Transmitter and receiver application circuit schematics and recommended board layouts avail­able

• Interlocking feature for single channel or duplex links, in a vertical or horizontal mount configuration

• Intra-system links: board-to-board, rack-to-rack

• Telecommunications switching systems

• Computer-to-peripheral data links, PC bus extension

• Industrial control

• Proprietary LANs

• Digitized video

• Medical instruments

• Reduction of lightning and voltage transient suscepti­bility

HCS' is a registered trademark of Spectran Corporation.