參數(shù)資料
型號： TF1006A
英文描述： LG1625AXF Laser Driver
中文描述： LG1625AXF激光驅(qū)動器
文件頁數(shù)： 1/12頁
文件大小： 363K
代理商： TF1006A
Data Sheet
June 1999
LG1625AXF Laser Driver
Features
I
High data-rate laser diode/LED driver
I
Adjustable output current
I
Operation up to 3 Gbits/s
I
Single –5.2 V power supply
I
90 ps rise and fall times
Applications
I
SONET/SDH transmission systems
I
SONET/SDH test equipment
I
Optical transmitters
Description
The LG1625AXF is a gallium-arsenide (GaAs) laser
diode driver to be used with direct modulated laser
diodes in high-speed nonreturn-to-zero (NRZ) trans-
mission systems. The device is made in a high-per-
formance 0.9
μ
m gate GaAs heterojunction FET
technology that utilizes high-density MIM capacitors,
airbridge interconnect, and NiCr film precision resis-
tors.
The device contains three cascaded stages, oper-
ates with a single –5.2 V power supply and accepts
ECL level inputs. Voltages control the modulated out-
put current and laser prebias current. The
LG1625AXF is available in a 24-lead hermetic, gull-
wing package.
A test fixture (TF1006A) with SMA connectors is
available to allow quick evaluation of the LG1625AXF.
5-7865(F)
Figure 1. Functional Diagram
V
IN
MK
V
SS1
V
TH
V
SS2
GND
I
OUT
MK
V
PRE
V
SS3
V
MOD
LG1625AXF
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