VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
SONET/SDH 10.7Gb/s
Laser Diode Driver
VSC7990
Figure 2: Differential AC-Coupled
0.1µF
DIN
50Ω(1)
7kΩ(1)
VTHD
0.1µF
2.6kΩ(1)
Data
Source
VSS
VSS
0.1µF
NDIN
50Ω(1)
7kΩ(1)
VTHDN
0.1µF
2.6kΩ(1)
VSS
(1) On-chip components.
0.1µF
CLK
50Ω(1)
7kΩ(1)
(1)
2.6kΩ(1)
Clock
Source
VSS
VSS
0.1µF
NCLK
50Ω(1)
7kΩ(1)
(1)
2.6kΩ(1)
VSS
Chip
Boundary
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
G52303-0, Rev 2.2
04/05/01
Page 5
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