VITESSE

SEMICONDUCTOR CORPORATION

G52293-0, Rev 2.3

Page 3

05/07/01

© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012

Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com

Internet: www.vitesse.com

Advance Product Information

VSC7124

Quad Port Bypass Circuit

Figure 2: Timing Waveforms

NOTE: (1) Refer to Application Note AN-37 for details regarding differential voltage measurements.

Parameters

Description

Min

Typ

Max

Units

Conditions

Propagation Delay

7.0

ns

Delay with all circuits

bypassed.

Serial Data Rise and Fall Time

300

ps

At

∆V

Data Jitter Accummulation

120

ps

Peak-to-Peak on Ox+/-

Parameters

Description

Min

Typ

Max

Units

Conditions

Output HIGH voltage (TTL)

2.4

V

Output LOW voltage (TTL)

0.5

V

Input HIGH voltage (TTL)

2.0

5.5

V

Input LOW voltage (TTL)

0

0.8

V

Input HIGH current (TTL)

50

500

µAV

Input LOW current (TTL)

-500

µAV

∆V

OUT75

(1)

TX output differential peak-to-peak

voltage swing

1200

2200

mVp-p

75

Ω to V

∆V

OUT50

(1)

TX output differential peak-to-peak

voltage swing

1000

2200

mVp-p

50

Ω to V

∆V

IN

(1)

Receiver differential peak-to-peak

Input Sensitivity RX

400

2600

mVp-p

Supply voltage

3.14

3.47

V

3.3V±5%

Power dissipation

250

555

mW

Outputs open,

Power Supply Current

76

160

mA

Outputs open,

Ox+/-

Ix+/-