© VITESSE SEMICONDUCTOR CORPORATION

Page 7

7/24/00

741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896

VITESSE

SEMICONDUCTOR CORPORATION

Datasheet

VSC835

2.5 Gbits/sec

34x34 Crosspoint Switch with Signal Detection

G52270-0, Rev. 4.1

note 1: Nominal PECL mode, VCC=VCCP=3.3V, VEE=0, terminated 50ohms to +2.0V

Table 6: Control Port input levels (TTL)

Parameter

Description

Min

Typ

Max

Units

Conditions

Input HIGH voltage (TTL)

2.0

—3.5

V

—

Input LOW voltage (TTL)

0

—

0.8

V

—

Input HIGH current (TTL)

—

—

500

µAV

Input LOW current (TTL)

—

—

-500

µAV

Output HIGH voltage (TTL)

2.4

—

3.0

V

Output LOW voltage (TTL)

0.1

—

0.4

V

Tri-state output current (TTL)

-100

—

100

µAV

Table 7: Data input levels (differential PECL)

Parameter

Description

Min

Typ

Max

Units

Conditions

Input differential voltage

400

—

1000

mV

—

Input common-mode voltage

1.8

—

2.2

V

Table 8: Data output levels (differential PECL)

Parameter

Description

Min

Typ

Max

Units

Conditions

Output differential voltage

600

—

1000

mV

note 1

Output common-mode voltage

1.8

—

2.2

V

note 1