HFBR-1116TZ Transmitter
HFBR-2116TZ Receiver
Fiber Optic Transmitter and Receiver Data Links for 155 MBd
Data Sheet
Description
Features
The HFBR-1116TZ/-2116TZ series of data links are highperformance, cost-efficient, transmitter and receiver
modules for serial optical data communication applications specified at 155 Mbps for ATM UNI applications.
• Full compliance with the optical performance requirements of the ATM Forum UNI SONET OC-3 multimode
physical layer specification
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.
Package
The overall package concept for the Data Links consists of
the following basic elements: two optical subassemblies,
two electrical subassemblies, and the outer housings as
illustrated in Figure 1.
* ST is a registered trademark of AT&T Lightguide Cable Connectors.
• Other versions available for:
– FDDI
– Fibre Channel
• Compact 16-pin DIP package with plastic ST* connector
• Wave solder and aqueous wash process compatible
package
• Manufactured in an ISO 9001 certified facility
Applications
• ATM switches, hubs, and network interface cards
• Multimode fiber ATM wiring closet-to-desktop links
• Point-to-point data communications
• Replaces DLT/R1040-ST1 model transmitters and
receivers
