VITESSE
SEMICONDUCTOR CORPORATION
Datasheet
2.5 Gbits/sec
34x34 Crosspoint Switch with Signal Detection
VSC835
Table 6: Control Port input levels (TTL)
Parameter
Description
Min
Typ
Max
Units
Conditions
VIH
VIL
IIH
Input HIGH voltage (TTL)
Input LOW voltage (TTL)
Input HIGH current (TTL)
Input LOW current (TTL)
Output HIGH voltage (TTL)
Output LOW voltage (TTL)
Tri-state output current (TTL)
2.0
0
—
—
—
—
—
—
—
3.5
0.8
V
V
—
—
—
500
-500
3.0
µA
µA
V
VIN = 2.4V
VIN = 0.5V
IOH = 2mA
IOL = 1.5mA
VOUT = 0.4V-2.4V
IIL
—
VOH
VOL
IOZ
2.4
0.1
-100
0.4
V
100
µA
Table 7: Data input levels (differential PECL)
Parameter
Description
Min
Typ
Max
Units
Conditions
VID
Input differential voltage
400
1.8
—
—
1000
2.2
mV
V
—
VICM
Input common-mode voltage
VCC=3.3V
Table 8: Data output levels (differential PECL)
Parameter
Description
Min
Typ
Max
Units
Conditions
VOD
Output differential voltage
600
1.8
—
—
1000
2.2
mV
V
note 1
note 1
VOCM
Output common-mode voltage
note 1: Nominal PECL mode, VCC=VCCP=3.3V, VEE=0, terminated 50ohms to +2.0V
G52270-0, Rev. 4.1
7/24/00
VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
Page 7
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