155 MBd Link (HFBR-14x4/24x6)
(refer to Application Bulletin 78 for details)
Typical Link Performance
Parameter
Optical Power Budget with
50/125 µm fiber
Optical Power Budget with
62.5/125 µm fiber
Optical Power Budget with
100/140 µm fiber
Optical Power Budget with
200 µm HCS fiber
Data Format 20% to 80% Duty
Factor
System Pulse Width Distortion
Symbol
OPB
50
OPB
62
OPB
100
OPB
200
Min
7.9
Typ [1, 2]
13.9
Max
Units
dB
Conditions
NA = 0.2
Ref
Note 2
11.7
17.7
dB
NA = 0.27
11.7
17.7
dB
NA = 0.30
16.0
22.0
dB
NA = 0.35
1
175
MBd
|t
PLH
- t
PHL
|
BER
1
10
-9
ns
PR = -7 dBm peak
1 m 62.5/125 µm fiber
Data rate < 100 MBaud
PR > -31 dBm peak
Note 2
Bit Error Rate
Notes:
1. Typical data at T
A
= +25 °C, V
CC
= 5.0 V dc, PECL serial interface.
2. Typical OPB was determined at a probability of error (BER) of 10-9. Lower probabilities of error can be achieved with short fibers that have less
optical loss.
14
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