VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
VSC7990
Figure 2: Differential AC-Coupled
SONET/SDH 10.7Gb/s
Laser Diode Driver
Data
Source
Clock
Source
0.1µF
0.1µF
0.1µF
DIN
VTHD
NDIN
50Ω(1)
7kΩ(1)
2.6kΩ(1)
VSS
VSS
0.1µF
0.1µF
0.1µF
VTHDN
50Ω(1)
7kΩ(1)
2.6kΩ(1)
VSS
(1) On-chip components.
CLK
50Ω(1)
7kΩ(1)
(1)
2.6kΩ(1)
NCLK
VSS
VSS
50Ω(1)
7kΩ(1)
(1)
Chip
Boundary
2.6kΩ(1)
VSS
G52303-0, Rev 2.2
04/05/01
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