HFBR-5803AT Avago Technologies US Inc., HFBR-5803AT Datasheet - Page 5

• Manufacturer Part Number: HFBR-5803AT
• Manufacturer: Avago Technologies US Inc.

Specifications of HFBR-5803AT

• Optical Fiber Type: TX/RX
• Data Transfer Rate: 100Mbps
• Optical Rise Time: 3/2.2ns
• Optical Fall Time: 3/2.2ns
• Jitter: 0.69/2.14ns
• Operating Temperature Classification: Commercial
• Peak Wavelength: 1308/1380nm
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Output Current: 50mA
• Operating Temp Range: -10C to 85C
• Mounting: Screw
• Pin Count: 9
• Lead Free Status / Rohs Status: Not Compliant

Application Information
The Applications­ Engineering group in the Avago Tech-
nologies­ Fiber Optics­ Communication Divis­ion is­ avail-
able to as­s­is­t you with the technical unders­tanding and
des­ign trade-offs­ as­s­ociated with thes­e trans­ceivers­.
You can contact them through your Avago Technolo-
gies­’ s­ales­ repres­entative.
The following information is­ provided to ans­wer s­ome
of the mos­t common ques­tions­ about the us­e of thes­e
parts­.
Transceiver Optical Power Budget versus Link Length
Optical Power Budget (OPB) is­ the available optical
power for a fiber optic link to accommodate fiber cable
los­s­es­ plus­ los­s­es­ due to in-line connectors­, s­plices­, op-
tical s­witches­, and to provide margin for link aging and
unplanned los­s­es­ due to cable plant reconfiguration or
repair.
Figure 4 illus­trates­ the predicted OPB as­s­ociated with
the trans­ceiver s­eries­ s­pecified in this­ data s­heet at the
Beginning of Life (BOL). Thes­e curves­ repres­ent the at-
tenuation and chromatic plus­ modal dis­pers­ion los­s­es­
as­s­ociated with the 62.5/125 µm and 50/125 µm fiber
cables­ only. The area under the curves­ repres­ents­ the
remaining OPB at any link length, which is­ available for
overcoming non-fiber cable related los­s­es­.
Avago Technologies­’ LED technology has­ produced
1300 nm LED devices­ with lower aging characteris­tics­
than normally as­s­ociated with thes­e technologies­ in
the indus­try. The indus­try convention is­ 1.5 dB aging for
1300 nm LEDs­. The Avago Technologies­ 1300 nm LEDs­
will experience les­s­ than 1 dB of aging over normal com-
mercial equipment mis­s­ion life periods­. Contact your
Avago Technologies­’ s­ales­ repres­entative for additional
details­.
Figure 4 was­ generated with a Avago Technologies­ fiber
optic link model containing the current indus­try con-
ventions­ for fiber cable s­pecifications­ and the FDDI PMD
and LCF-PMD optical parameters­. Thes­e parameters­ are
reflected in the guaranteed performance of the trans­-
ceiver s­pecifications­ in this­ data s­heet. This­ s­ame model
has­ been us­ed extens­ively in the ANSI and IEEE commit-
tees­, including the ANSI X3T9.5 committee, to es­tablis­h
the optical performance requirements­ for various­ fiber
optic interface s­tandards­. The cable parameters­ us­ed
come from the ISO/IEC JTC1/SC 25/WG3 Generic Ca-
bling for Cus­tomer Premis­es­ per DIS 11801 document
and the EIA/TIA-568-A Commercial Building Telecom-
munications­ Cabling Standard per SP-2840.
Transceiver Signaling Operating Rate Range and BER Per-
formance
For purpos­es­ of definition, the s­ymbol (Baud) rate, als­o
called s­ignaling rate, is­ the reciprocal of the s­hortes­t
s­ymbol time. Data rate (bits­/s­ec) is­ the s­ymbol rate di-
5
vided by the encoding factor us­ed to encode the data
(s­ymbols­/bit).
Figure 4. Optical Power Budget at BOL versus Fiber Optic Cable
Length.
When us­ed in Fas­t Ethernet, FDDI and ATM 100 Mb/s­ ap-
plications­ the performance of the 1300 nm trans­ceivers­
is­ guaranteed over the s­ignaling rate of 10 MBd to 125
MBd to the full conditions­ lis­ted in individual product
s­pecification tables­.
Figure 5. Transceiver Relative Optical Power Budget at Constant
BER vs. Signaling Rate.
The trans­ceivers­ may be us­ed for other applications­ at
s­ignaling rates­ outs­ide of the 10 MBd to 125 MBd range
with s­ome penalty in the link optical power budget
primarily caus­ed by a reduction of receiver s­ens­itivity.
Figure 5 gives­ an indication of the typical performance
of thes­e 1300 nm products­ at different rates­.
Thes­e trans­ceivers­ can als­o be us­ed for applications­
which require different Bit Error Rate (BER) performance.
Figure 6 illus­trates­ the typical trade-off between link BER
and the receivers­ input optical power level.
12
10
8
6
4
2
0
2.5
2.0
1.5
1.0
0.5
0.5
0
CONDITIONS:
1. PRBS 2
2. DATA SAMPLED AT CENTER OF DATA SYMBOL.
3. BER = 10
4. T
5. V
6. INPUT OPTICAL RISE/FALL TIMES = 1.0/2.1 ns.
0
0.3
FIBER OPTIC CABLE LENGTH (km)
A
CC
25
= +25˚ C
= 3.3 V to 5 V dc
0.5
7
-1
HFBR-5803, 62.5/125 µm
50
-6
SIGNAL RATE (MBd)
1.
0
75
HFBR-5803
50/125 µm
100
1.5
125
150
2.0
175
2.5
200