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參數(shù)資料
| 型號： | 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)動器集成電路 |
| 文件頁數(shù)： | 6/37頁 |
| 文件大?。?/td> | 542K |
| 代理商： | FOA2322A |
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Preliminary Data Sheet
2
2001-05
FOA2322A
3.2 Gbit/s Laser Driver IC for Telecom and Datacom
Applications
FOA2322A
1
Overview
1.1
Features
Data rate up to 3.2 Gbit/s
Supply range from +3.0 V to +5.5 V
Modulation current adjustable up to 75 mA
Bias current adjustable up to 80 mA
Choice between temperature compensation and integrated Two-Loop-Control of bias
and modulation current
Integrated laser supervisor
Monitor output for optical output power
1.2
Applications
Fiber optics telecom and data communication systems
SDH / SONET, Fiber Channel, Gigabit Ethernet
1.3
Technology
Bicmos B6HFC
1.4
General
This document defines the ratings and characteristics of a laser driver circuit dedicated
for applications within telecom and datacom modules with respect to various
transmission standards and laser safety requirements. A block diagram of this circuit is
shown in
Figure 1
.
Modulation Control / Modulator / Input Stage
The modulator is capable of driving modulation currents up to 75 mA. There are two
modes for adjusting the modulation current:
Mode 1: The modulation current is adjusted by an external resistor (
R
MOD
). The IC has
an internal temperature compensation circuit for compensating the temperature
characteristic of laser diode slope efficiency. With the external resistor (
R
TC
) the
modulation current temperature coefficient is adjustable. The temperature input itself is
derived from chip junction temperature.
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