HFBR-1115T Datasheet, PDF (1/12 Pages) Agilent(Hewlett-Packard) – Fiber Optic Transmitter and Receiver Data Links for 125 MBd

Fiber Optic Transmitter
and Receiver Data Links
for 125 MBd
Technical Data
HFBR-1115T Transmitter
HFBR-2115T Receiver
Features
• Full Compliance with the
Optical Performance
Requirements of the FDDI
PMD Standard
• Full Compliance with the
Optical Performance
Requirements of the ATM
100 Mbps Physical Layer
• Full Compliance with the
Optical Performance
Requirements of the
100 Mbps Fast Ethernet
Physical Layer
• Other Versions Available for:
- ATM
- 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
• FDDI Concentrators,
Bridges, Routers, and
Network Interface Cards
• 100 Mbps ATM Interfaces
• Fast Ethernet Interfaces
• General Purpose, Point-to-
Point Data Communications
• Replaces DLT/R1040-ST1
Model Transmitters and
Receivers
Description
The HFBR-1115/-2115 series of
data links are high-performance,
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 multi-mode
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 differential-input, 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
*ST is a registered trademark of AT&T Lightguide Cable Connectors.
5965-3481E (8/96)
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,
ECL-referenced (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.
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