VITESSE
SEMICONDUCTOR CORPORATION
Preliminary Data Sheet
VSC7937
Table 3: Power Dissipation
Symbol
I
SS
P
D
Single Supply 2.5Gb/s Voltage Driver
Parameter
Power Supply Current (V
SS
)
Total Power Dissipation
Min
—
—
Typ
—
-
—
Max
120
700
Units
mA
mW
Conditions
V
SS
= -5.5V, I
MOD
=
I
BIAS
= 0mA
V
SS
= -5.5V, I
MOD
=
I
BIAS
= 0 mA
Table 4: Package Thermal Specifications
Symbol
θ
JCC
θ
JCP
Parameter
Thermal Resistance from Junction to Case
Thermal Resistance from Junction to Case
Min
—
—
Typ
25
15
Max
—
—
Units
°C/W
°C/W
Conditions
Ceramic Package
Plastic Package
Table 5: MUX Select Logic Table
Symbol
VSS
GND
NC
Clocked Data In
Non-clocked Data In
Non-clocked Data In
Rating
Absolute Maximum Ratings
(1)
Power Supply Voltage (V
SS
) ............................................................................................................. V
CC
to -6.0V
Operating Junction Temperature Range (T
J
)............................................................................... -55°C to +125°C
Storage Temperature Range (T
S
)................................................................................................. -65°C to +150°C
NOTE: (1) CAUTION: Stresses listed under “Absolute Maximum Ratings” may be applied to devices one at a time without caus-
ing permanent damage. Functionality at or above the values listed is not implied. Exposure to these values for extended
periods may affect device reliability.
Recommended Operating Conditions
Positive Voltage Rail (GND) ..............................................................................................................................0V
Negative Voltage Rail (V
SS
) .......................................................................................................................... -5.2V
Operational Case Temperature Range (T
C
)
(1)
............................................................................... -40°C to +85°C
NOTE: (1) Lower limit of specification is ambient temperature and upper limit is case temperature
G52200-0, Rev 3.0
03/05/01
©
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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