VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
SDH/SONET 2.5Gb/s
Laser Diode Driver
VSC7927
Figure 3: Single Ended AC Coupled
GND
DIN
(CLK)
0.1µf
SOURCE
X
4.0K
6.4K
50
50
DINTERM
-2.0V
X
X
(CLKTERM)
0.1µf
NDIN
(NCLK)
0.1µf
GND
VSS
GND
Figure 4: Differential AC Coupled
GND
DIN
(CLK)
0.1µf
0.1µf
X
SOURCE
50
50
DINTERM
4.0K
(CLKTERM)
-2.0V
6.4K
X
NDIN
(NCLK)
0.1µf
X
GND
VSS
Figure 5: Differential DC Coupled
GND
DIN
(CLK)
X
SOURCE
50
50
DINTERM
4.0K
(CLKTERM)
-2.0V
6.4K
X
NDIN
(NCLK)
X
-2.0V
VSS
G52201-0, Rev 2.2
10/13/99
VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
Page 7
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