VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
VSC7990
SONET/SDH 10.7Gb/s
Laser Diode Driver
Pin #
38
39
40
41
42
43
44
45
46
Signal Name
VDD
IBIAS
IBIAS
NC
VIB
VSS
VSS
VSS
VTHDN
Signal Type
—
O
O
—
I
—
—
—
I
Levels
0V
—
—
—
—
–5.2V
–5.2V
–5.2V
—
Description
Ground
Bias Current Output
Bias Current Output
No Connection
Bias Output Adjust
Power Supply
Power Supply
Power Supply
Input Bias Threshold Adjust for Data, Complement
NOTE: (1) Data and clock inputs are ECL-swing but not ECL level. Inputs must be AC-coupled as shown in Figures 2 and 3 of
this data sheet.
G52303-0, Rev 2.0
12/15/00
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
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