V23818-N15-L616 Datasheet, PDF (7/20 Pages) Infineon Technologies AG – Small Form Factor Single Mode 1300 nm Multirate up to 2.5 Gbit/s Transceiver 2x10 Pinning with LC™ Connector, with Collar

V23818-N15-L6xx
Pin Configuration
PMon– / PMon+
The DC voltage that can be measured across pins 19 and 20 is proportional to the laser
monitor diode current through a 200 Ω resistor in its path. This output remains constant
and can be used to monitor correct operation of laser control circuitry, a deviation
indicates faulty behaviour. A schematic and typical behaviour are shown in Figure 7 and
Figure 8. The SFF MSA defines that V_mon must be in the range of 0.01 V and 0.2 V. The
Infineon OC-48 transceiver has a nominal range of 0.04 to 0.08 V. Leave pins
unconnected if feature is not required.
V_CC
200 Ω
R
3 kΩ
3 kΩ
Pin 20
Pin 19
V_EE
Figure 7 Power Monitor – Transceiver Internal
File: 1311
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
0
10
20
30
40
50
60
70
Temperature (˚C)
File: 1313
Figure 8 Typical Behaviour of Power Monitor Voltage over Temperature
Data Sheet
7
2003-09-10