VITESSE
SEMICONDUCTOR CORPORATION
Preliminary Data Sheet
Single Supply 2.5Gb/s Voltage Driver
VSC7937
Package Pin Information
Table 6: Pin Identifications
Signal
DIN, NDIN
DINTERM
CLK, NCLK
CLKTERM
NOUT
OUT
VSS
GND
VIP
MIP
VIB1, 2
MIB1, 2
DCC
SEL
Total Pins
Type
In
Ref
In
Ref
Out
Out
Pwr
Pwr
In
In
In
In
In
In
Level
DC
DC
# Pins
2
1
2
1
1
1
Data Termination
Description
Data Input and Data Reference
Clock Input and Clock Reference
Clock Termination
Modulation Current Output (complementary)
Modulation Current Output (to Laser Cathode)
Negative Voltage Rail
Pwr
Pwr
DC
DC
DC
DC
DC
DC
2
6/14
1
1
2
2
1
1
24/32
(1)
(1)
Positive Voltage Rail
Modulation Control Node
Modulation Monitor Node
Bias Control Node
Bias Monitor Node
Duty Cycle Control
Clk/Non-clk Data Select
NOTE: (1) Applicable to 32-pin TQFP package only
Page 8
©
VITESSE
SEMICONDUCTOR CORPORATION
• 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
G52200-0, Rev 3.0
03/05/01
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
