Single Chip 10BASE-FL
Transceiver
Technical Data
HFBR-4663
General Description
The HFBR-4663 Single Chip
10BASE-FL Transceiver is a
highly integrated circuit for IEEE
802.3 10Base-FL transceivers.
This product, when used with
HP’s fiber-optic transmitters and
receivers (HFBR-14X4 and
HFBR-2416), ensures
compliance to the 10Base-FL
Standard with a minimum
number of external components
and board space.
The HFBR-4663 offers a standard
IEEE 802.3 AU interface that
allows it to be directly connected
to industry standard manchester
encoder/decoder chips or an AUI
connector. The fiber-optic LED
driver offers a current drive
output that directly drives the
HFBR-14X4 transmitter. The data
quantizer section of the HFBR-
4663 is directly compatible with
the output of the HFBR-24X6
fiber-optic receiver and is capable
of accepting input signals as low
as 2 mVp-p with a 55 dB dynamic
range.
The transmitter automatically
inserts 1 MHz signal during idle
time and removes this signal on
reception. Low light is continu-
ously monitored for both activity
as well as power level. Five LED
status indicators monitor error
conditions as well as transmis-
sions, receptions, and collisions.
Features
• Single Chip Solution for
10BASE-FL Internal or
External Medium
Attachment Units (MAUs)
• Specifically Designed for Use
with HFBR-14X4 and HFBR-
24X6 Fiber-optic
Transmitters and Receivers
• Incorporates an AU Interface
• Highly Stable Data Quantizer
with 55 dB Input Dynamic
Range
• Input Sensitivity as Low
as 2 mV
P-P
• Current Driven Fiber Optic
LED Driver for Accurate
Launch Power
• Single +5 Volt Supply
• No Crystal or Clock
Required
• Five Network Status LED
Outputs
• Available in 28 Pin PCC
Package
• Semi-Standard Option
Available
CAUTION: The small junction sizes inherent to the design of this component increase the component's suscepti-
bility to damage from electrostatic discharge (ESD). It is advised that normal static precautions be taken in
handling and assembly of this component to prevent damage and/or degradation which may be induced by
ESD.
5965-8597E (5/97)
77
HP [ AGILENT(HEWLETT-PACKARD) ]
