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參數(shù)資料
| 型號(hào)： | FOA2322A |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | 3.2 Gbi t /s Laser Driver IC for Telecom and Datacom Applications |
| 中文描述： | 3.2陸基攔截噸/ s的電信和數(shù)據(jù)通信應(yīng)用激光驅(qū)動(dòng)器集成電路 |
| 文件頁數(shù)： | 22/37頁 |
| 文件大?。?/td> | 542K |
| 代理商： | FOA2322A |
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FOA2322A
Electrical Characteristics
Preliminary Data Sheet
18
2001-05
2.5
Principle of Modulation Current Control by Using a Pilot Signal
(Mode 2)
The DC-part of the monitor current controls the bias current. The difference of the optical
low frequency AC-part
Ppp is used for the modulation current control.
Ppp is
measured over the monitor current. The aim of the control is to settle
Ppp to Zero. (That
means a part of the pilot current amplitude on bias current is modulated below laser
current threshold. Therefore please take into account the laser characteristics, e.g.
switch-on delay, for higher data rates.) Mode 2 can only be used for DC-coupled laser
diodes.
Figure 8
Modulation Current Control by Using a Pilot Signal
P
Opt
P1
P
P0
I
Laser
ab
PILOT
am
PILOT
P1
Ppp
P0
Ppp =
P0 -
P1
ITD11333
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