© VITESSE SEMICONDUCTOR CORPORATION

Page 11

8/28/00

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

VITESSE

SEMICONDUCTOR CORPORATION

Advance Product Information

VSC7146

2.5Gb/s, 20-Bit Transceiver

G52162-0, Rev. 2.7

Note: (1) Refer to Application Note, AN-37, for differential measurement techniques.

Parameters

Description

Min

Typ

Max

Units

Conditions

Output HIGH voltage (TTL)

2.4

——

V

Output LOW voltage (TTL)

—

—

0.5

V

∆V

OUT50

(1)

Serial output absolute voltage

differential peak-to-peak swing

(TX+/TX-)

600

1100

2000

mV

Driving a 50

Ω transmission line

(TX+ - TX-)

∆V

OUT75

(1)

Serial output absolute voltage

differential peak-to-peak swing

(TX+/TX-)

600

1100

2000

mV

Driving a 75

Ω transmission line

(TX+ - TX-)

∆V

IN

(1)

Serial input absolute voltage

differential peak-to-peak swing

(RX+/RX-)

400

—

2200

mV

(RX+ - RX-)

Input HIGH voltage (TTL)

2.0

—

5.5

V

Input LOW voltage (TTL)

0

—

0.8

V

Input HIGH current (TTL)

—

1000

µAV

Input LOW current (TTL)

—

—

-500

µAV

Supply voltage

3.14

—

3.47

V

+3.3V± 5%

Power dissipation

—

1.8

2.6

W

Outputs open,

Supply current

—

550

750

mA

Outputs open,

Output resistance (TX)

—

50

—

Ω

Input resistance (RX)

—

50

—

Ω