
VITESSE
G52028-0, Rev 4.1
05/25/01
Page 7
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano
Camarillo, CA 93012
Tel: (800) VITESSE
FAX: (805) 987-5896
Email: prodinfo@vitesse.com
Internet: www.vitesse.com
Data Sheet
VSC8021/VSC8022
8-Bit MUX/DEMUX Chipset
2.5Gb/s SONET-Compatible
Table 5: Power Dissipation
(Over recommended operating conditions, V
CC
= GND, outputs open circuit)
Absolute Maximum Ratings
(1)
Power Supply Voltage (V
TT
)..........................................................................................................-3.0V to + 0.5V
Power Supply Voltage (V
EE
)..................................................................................................V
TT
+ 0.7V to -6.0V
ECL Input Voltage Applied
(2)
(V
ECLIN
) ........................................................................................-2.5V to + 0.5V
High-Speed Input Voltage Applied
(2)
(V
HSIN
)...............................................................V
EE
-0.7V to V
CC
+ 0.7V
Output Current (DC, output HIGH) (I
OUT
).................................................................................................-50 mA
Case Temperature Under Bias (T
C
)...............................................................................................-55
o
C to +125
o
C
Storage Temperature
(3)
(T
STG
)......................................................................................................-65
o
C to +150
o
C
Recommended Operating Conditions
ECL Power Supply Voltage
(4)
(V
TT
)..................................................................................................-2.0V
±
0.1V
Power Supply Voltage (V
EE
)............................................................................................................-5.2V
±
0.26V
Operating Temperature Range
(3)
(T).............................(Commercial) 0
o
C to +70
o
C, (Industrial) -40
o
C to +85
o
C
Notes: (1) Caution: Stresses listed under “Absolute Maximum Ratings” may be applied to devices one at a time without causing perma-
nent damage. Functionality at or exceeding the values listed is not implied. Exposure to these values for extended periods may
affect device reliability.
(2) V
TT
must be applied before any input signal voltage magnitude
(
V
ECLIN
and
V
HSIN
)
can be greater than
V
TT
-0.5V.
(3) Lower limit of specification is ambient temperature and upper limit is case temperature.
(4) When using internal ECL 100K reference level.
ESD Ratings
Proper ESD procedures should be used when handling this product. The VSC8021/VSC8022 is rated to the fol-
lowing ESD voltages based on the human body model:
1.
All ECL pins are rated at or above 1000V.
2.
All high-speed clock and data pins at rated at or above 500V.
Parameter
Description
VSC8021
VSC8022
Units
Conditions
Min
Typ
Max
Min
Typ
Max
I
EE
I
TT
P
D
Power supply current from V
EE
Power supply current from V
TT
Power dissipation
400
600
450
600
mA
110
200
120
200
mA
2.3
3.75
2.6
3.75
W