HFBR-2521Z Datasheet, PDF (15/18 Pages) AVAGO TECHNOLOGIES LIMITED – Versatile Link The Versatile Fiber Optic Connection

40 kBd Link
System Performance Under recommended operating conditions unless otherwise specified.
Parameter
Symbol
Data Rate
Min. Typ.
dc
Max. Units    Conditions
40
kBd BER ≤10^-9, PRBS: 2⁷ - 1
Link Distance
13
41
m
I_Fdc = 2 mA
(Standard Cable)
94
138
m
I_Fdc = 60 mA
Link Distance
15
45
m
I_Fdc = 2 mA
(Improved Cable)
111 154
m
I_Fdc = 60 mA
Propagation
t_PLH 4 µs
R_L = 3.3 kΩ, C_L = 30 pF
Delay
t_PHL 2.5 µs
P_R = -25 dBm, 1 m fiber
Pulse Width
t_D
7
µs
-39 ≤P_R≤- 14 dBm
Distortion t_PLH-t_PHL R_L = 3.3 kΩ, C_L = 30 pF
Notes:
1. Estimated typical link life expectancy at 40°C exceeds 10 years at 60 mA.
2. The propagation delay for one metre of cable is typically 5 ns.
Ref.
Fig. 21
Note 1
Fig. 22
Note 1
Fig. 22, 25
Note 2
Fig. 23, 24
Figure 20. Typical 40 kBd interface circuit
120
100
80
60
40
20
10
6
4
HFBR-15X3Z/25X3Z
2
1
0 10
20 30
40 50 60
0°C–70°C
25°C
70 80 90 100
– CABLE LENGTH – METRES
Figure 21. Guaranteed system performance
with standard cable
15
120
100
80
60
40
20
10
6
HFBR-15X3Z/25X3Z
4
0°C–70°C
25°C
2
0 10 20 30 40 50 60 70 80 90 100 110
– CABLE LENGTH – METRES
Figure 22. Guaranteed system performance
with improved cable