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參數(shù)資料
| 型號： | LG1626DXC |
| 英文描述： | LG1626DXC Modulator Driver |
| 中文描述： | LG1626DXC調(diào)制器驅(qū)動 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 264K |
| 代理商： | LG1626DXC |
Data Sheet
February 1999
LG1626DXC Modulator Driver
Features
I
High data-rate optical modulator driver
I
Adjustable output voltage up to 3 Vp-p (R
L
= 50
)
I
Adjustable modulator dc offset
I
Operation up to 3 Gbits/s
I
Single ended or differential inputs
I
Single –5.2 V power supply
I
90 ps rise and fall times
I
Enable control
Applications
I
SONET/SDM transmission systems
I
SONET/SDM test equipment
I
Optical transmitters
Functional Description
The LG1626DXC is a gallium-arsenide (GaAs) inter-
grated circuit used to provide voltages to drive optical
modulators in high-speed non-return-to-zero (NRZ)
transmission systems. The device is made in a high-
performance 0.9
μ
m gate GaAs hetero-junction FET
technology that utilizes high-density MIM capacitors,
airbridge interconnect, and NiCr film precision resis-
tors. The device contains four cascaded stages,
operates with a single –5.2 V power supply, and
accepts ECL 100K level inputs. The output is an
open drain designed to drive 50
loads. Voltages
control the output modulation amplitude and modula-
tor dc offset. A –2.5 V band-gap reference is required
for stable operation over temperature and varying
power supply voltage. The LG1626DXC is available
in a 24-lead hermetic, gull-wing package.
5-6549(F)
Figure 1. Functional Diagram
V
IN
BG2P5
V
SS1
V
TH
V
SS2
GND
V
OUT
MK
MK
V
SS3
V
MOD
V
OUT-DC
MOD_E
V
IN
V
TH
V
DC-ADJ
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