VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
VSC7991
Table 6: Pin Identifications
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
SONET/SDH 10.7Gb/s
Electroabsorption Modulator/Laser Diode Driver
Name
GND
GND
NDIN
GND
GND
DIN
GND
GND
GND
DCC
VSS
VSS
VIP
IP
IBN
GND
GND
GND
NDOUT
GND
GND
DOUT
GND
GND
GND
IB
GND
GND
VSS
VSS
GND
GND
Type
Pwr
Pwr
In
Pwr
Pwr
In
Pwr
Pwr
Pwr
In
Pwr
Pwr
In
In
In
Pwr
Pwr
Pwr
Out
Pwr
Pwr
Out
Pwr
Pwr
Pwr
In
Pwr
Pwr
Pwr
Pwr
Pwr
Pwr
Level
Pwr
Pwr
CML
Pwr
Pwr
CML
Pwr
Pwr
Pwr
DC
Pwr
Pwr
DC
DC
DC
Pwr
Pwr
Pwr
Pwr
Pwr
Pwr
Pwr
Pwr
DC
Pwr
Pwr
Pwr
Pwr
Pwr
Pwr
Positive Voltage Rail
Positive Voltage Rail
Description
Complementary Data In
Positive Voltage Rail
Positive Voltage Rail
Data In
Positive Voltage Rail
Positive Voltage Rail
Positive Voltage Rail
Duty-Cycle Control Voltage
Negative Voltage Rail
Negative Voltage Rail
Modulation Control Voltage
Modulation Current Monitor
Data Offset Control Current (complementary)
Positive Voltage Rail
Positive Voltage Rail
Positive Voltage Rail
Laser Modulation Current Output (complementary)
Positive Voltage Rail
Positive Voltage Rail
Laser Modulation Current Output
Positive Voltage Rail
Positive Voltage Rail
Positive Voltage Rail
Data Offset Control Current
Positive Voltage Rail
Positive Voltage Rail
Negative Voltage Rail
Negative Voltage Rail
Positive Voltage Rail
Positive Voltage Rail
NOTE: A voltage HIGH on the data input (pin 6) corresponds to a voltage HIGH on the data output (pin 22).
G52321-0, Rev 2.3
02/26/01
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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
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VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
