V23818-K15-L37 Datasheet, PDF (8/24 Pages) Infineon Technologies AG – Small Form Factor Single Mode 1300 nm 1.0625 Gbit/s Fibre Channel 1.25 Gigabit Ethernet Transceiver 2x5/2x10 Pinning with LC Connector

V23818-K15-Lxx
Pin Configuration
BMon– / BMon+
The DC voltage measured across pins 17 and 18 is proportional to the laser bias current.
Use the equation:
I_bias = V_bias /10 Ω
Use this output to monitor laser performance and EOL conditions. A schematic and
typical behaviour are shown in Figure 6 and Figure 7. I_bias @ ambient 25°C < 60 mA.
Leave pins floating if function is not required.
V_CC
10 Ω
3 kΩ
3 kΩ
Pin 18
Pin 17
V_EE
Figure 6 Bias Monitor – Transceiver Internal
File: 1310
Figure 7
0.36
0.32
0.28
0.24
0.2
0.16
0.12
0.08
0.04
0
0
10
20
30
40
50
60
70
Temperature (˚C)
File: 1312
Typical Variations of Bias Monitor Voltage over Temperature
Data Sheet
8
2003-03-21