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VITESSE
Data Sheet
VSC870
High Performance Serial
Backplane Transceiver
Page 36
G52190-0, Rev 4.1
01/05/01
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano
Camarillo, CA 93012
Tel: (800) VITESSE
FAX: (805) 987-5896
Email: prodinfo@vitesse.com
Internet: www.vitesse.com
Figure 19: LVDS Input and Output Buffer Designs
Power Dissipation
Table 7: Power Supply Currents
Absolute Maximum Ratings
(1)
Power Supply Voltage (V
DD
) Potential to GND.................................................................................-0.5V to +4V
DC Input Voltage (LVDS inputs) ..........................................................................................-0.5V to V
DD
+ 1.0V
DC Input Voltage (TTL inputs).........................................................................................................-0.5V to 5.5V
DC Output Voltage (TTL outputs) ........................................................................................-0.5V to V
DD
+ 1.0V
Output Current (TTL outputs).................................................................................................................. +/-50mA
Output Current (LVDS outputs)................................................................................................................+/-50mA
Case Temperature Under Bias......................................................................................................-55
o
C to +125
o
C
Storage Temperature.....................................................................................................................-65
o
C to +150
o
C
NOTE: (1) Caution: Stresses listed under “Absolute Maximum Ratings” may be applied to devices one at a time without causing
permanent damage. Functionality at or exceeding the values listed is not implied. Exposure to these values for extended
periods may affect device reliability.
Recommended Operating Conditions
Power Supply Voltage (V
DD
, V
DDA
) ....................................................................................................+3.3V
Extended Commercial Operating Temperature Range
(1)
(T).............................................................. 0
o
C to 85
o
C
%
NOTE: (1) Lower limit of specification is ambient temperature and upper limit is case temperature.
Parameter
Description
(Max)
Units
I
DD
I
DDA
P
D
Power supply current from V
DD
and V
DDA
(V
DD
, V
DDA
= +3.3V + 5%)
Power supply current from V
DDA
(V
DDA
= +3.3V + 5%)
Power dissipation (V
DD
, V
DDA
= +3.3V + 5%)
1587
200
5.5
mA
mA
W
50
50
100
Receiver
Transmitter
Backplane
5
±