VITESSE
SEMICONDUCTOR CORPORATION
Preliminary Data Sheet
Single Supply 2.5Gb/s Voltage Driver
VSC7937
Table 3: Power Dissipation
Symbol
Parameter
Min
Typ
Max Units
Conditions
VSS = -5.5V, IMOD
=
=
ISS
Power Supply Current (VSS
)
—
—-
120
700
mA
I
BIAS = 0mA
VSS = -5.5V, IMOD
IBIAS = 0 mA
PD
Total Power Dissipation
—
—
mW
Table 4: Package Thermal Specifications
Symbol
Parameter
Min
Typ
Max Units
Conditions
θJCC
θJCP
Thermal Resistance from Junction to Case
Thermal Resistance from Junction to Case
—
—
25
15
—
—
°C/W Ceramic Package
°C/W Plastic Package
Table 5: MUX Select Logic Table
Symbol
Rating
VSS
GND
NC
Clocked Data In
Non-clocked Data In
Non-clocked Data In
Absolute Maximum Ratings(1)
Power Supply Voltage (VSS) ............................................................................................................. VCC to -6.0V
Operating Junction Temperature Range (TJ)............................................................................... -55°C to +125°C
Storage Temperature Range (TS)................................................................................................. -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 (VSS).......................................................................................................................... -5.2V
Operational Case Temperature Range (TC)(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
Page 3
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Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com