FTM1141GF-C
Driver Integrated 10Gb/s
MI-DFB LD Module
Typical Application for Driver IC
Supply Voltage
Modulation Voltage Control
Bias Voltage Control
Cross Point Control
Chip
Capacitor
0.1µF
Ther r TEC
Chip
Capacitor
0.1µF
Vx1
GND
DinB
Blocking
Capacitor
Ex. 0.1µF
GND
Din
GND
Vx2
VSS
Vm
Vb
GND
PD
PD
LD
NC
NC
TEC
For stable operation:
8-1. To prevent a dependence of “Cross point” on the supply voltage VSS,
(1) Use an external voltage source of -3.8V for “Vx2”, or
(2) Control the voltage of “Vx1”, so that the voltage difference “Vx1-Vx2” remain constant.
8-2. To prevent a dependence of “Modulation control voltage” on the supply voltage VSS,
control the voltage of “Vm”, so that the difference “Vm-VSS” remain constant.
8-3. To prevent a dependence of “Bias control voltage” on the supply voltage VSS,
control the voltage of “Vb”, so that the difference “Vb-VSS” remain constant.
4
EUDYNA [ EUDYNA DEVICES INC ]
