VITESSE
SEMICONDUCTOR CORPORATION
Preliminary Data Sheet
SONET/SDH 2.5Gb/s Laser Diode Driver
Figure 3: Single-Ended AC-Coupled
GND
DIN
(CLK)
VSC7927
0.1µf
SOURCE
DINTERM
(CLKTERM)
X
50
4.0K
-2.0V
50
6.4K
X
X
0.1µf
GND
NDIN
(NCLK)
0.1µf
VSS
GND
Figure 4: Differential AC-Coupled
GND
0.1µf
SOURCE
0.1µf
DIN
(CLK)
X
DINTERM
(CLKTERM)
50
4.0K
-2.0V
X
0.1µf
GND
NDIN
(NCLK)
50
6.4K
X
VSS
Figure 5: Differential DC-Coupled
GND
DIN
(CLK)
X
SOURCE
DINTERM
(CLKTERM)
50
4.0K
-2.0V
X
NDIN
(NCLK)
50
6.4K
X
-2.0V
VSS
Page 6
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VITESSE
SEMICONDUCTOR CORPORATION
• 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
G52201-0, Rev 3.0
04/05/01/01