VITESSE
SEMICONDUCTOR CORPORATION
Preliminary Datasheet
VSC8131
DC Characteristics
2.488 Gbit/sec
32:1 SONET/SDH Mux with Clock Generator
Table 2: VSC8131 Multiplexer DC Characteristics
(
Over recommended operating conditions
)
Parameters
V
OH(DO)
V
OL(DO)
∆V
OD(DO)
Description
Output HIGH voltage (DO)
Output LOW voltage (DO)
Output differential voltage
(DO)
Output common mode voltage
Output HIGH voltage (CO)
Output LOW voltage (CO)
Output differential voltage
(CO)
Output common mode voltage
Back Termination Impedance
(DO, CO)
Input HIGH voltage
(LVPECL)
Input LOW voltage (LVPECL)
Differential Input voltage
(LVPECL)
Input Common Mode Range
(LVPECL)
Output HIGH voltage (TTL)
Output LOW voltage (TTL)
Input HIGH voltage (TTL)
Input LOW voltage (TTL)
Input HIGH Current (TTL)
Input LOW Current (TTL)
Supply voltage
Power dissipation
Min
V
CC
-0.050
V
CC
-1.20
550
Typ
—
—
850
Max
V
CC
V
CC
-0.60
1200
Units
V
V
mV
Conditions
50 Ohm Termination
to V
CC
50 Ohm Termination
to V
CC
100 Ohm
Termination between
DO
+
at Load
100 Ohm
Termination between
DO
+
at Load
50 Ohm Termination
to V
CC
50 Ohm Termination
to V
CC
100 Ohm
Termination between
CO
+
at Load
100 Ohm
Termination between
CO
+
at Load
Guaranteed, not
tested
V
CM(DO)
V
OH(CO)
V
OL(CO)
∆V
OD(CO)
2.10
V
CC
-0.050
V
CC
-1.20
500
-
—
—
850
3.00
V
CC
V
CC
-0.60
1200
V
V
V
mV
V
CM(CO)
R
O
V
IH
V
IL
∆V
IN
V
ICM
V
OH
V
OL
V
IH
V
IL
I
IH
I
IL
V
CC
P
D
2.10
40
1.5
0
400
1.5-∆
V
IN/2
2.4
-
3.00
60
V
Ohm
V
V
mV
V
V
-
-
V
CC
-1.0v
-
1600
VCC-1.0-
∆
V
IN/2
0.5
I
OH
=-4.0 mA
I
OL
=+4.0 mA
V
V
V
uA
uA
V
W
mA
2.0
0.0
5.5
0.8
500
-500
V
IN
=2.4V
V
IN
=0.5V
3.3V
+
5%
Outputs open,
V
CC
=
V
CC
max
Outputs open,
V
CC
=
V
CC
max
3.14
—
—
—
1.7
495
3.47
2.15
620
I
CC
Supply Current
G52249-0, Rev. 3.0
11/9/99
©
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
Page 7
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