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