VITESSE

SEMICONDUCTOR CORPORATION

®

Advance Product Information

VSC7182

Quad Transceiver

for Gigabit Ethernet and Fibre Channel

Page 6

G52307-0, Rev 2.2

10/10/00

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

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

Internet: www.vitesse.com

AC Characteristics

Figure 3: Transmit Timing Waveforms

Table 3: Transmitter AC Characteristics

Parameter

Description

Min

Typ

Max

Units

Conditions

TXi[0:9] setup time to the rising edge

of TCi or RFC

1.5

—

—

ns

Measured between the valid

data level of TXi[0:9] to the

1.4V point of TCi or RFC

TXi[0:9] hold time after the rising

edge of TCi or RFC

1.0

—

—

ns

TXi+/TXi- rise and fall time

—

—

300

ps

20% to 80%, 75

Ω load to

basis

Latency from rising edge of RFC to

TXi0 appearing on TX+/TX-

7bc +

0.66ns

—

7bc +

1.46ns

bc = bit clocks

ns = nanoseconds

Latency from rising edge of TCi to

TXi0 appearing on TX+/TX-

5bc +

0.66ns

—

11bc

+

1.46ns

ns

bc = bit clocks

ns = nanoseconds

Transmitter Output Jitter

RJ

Random jitter (rms)

—

5

8

ps

Measured at SO+/-, 1 sigma

deviation of 50% crossing

point

DJ

Serial data output deterministic jitter

(pk-pk)

—

35

80

ps

IEEE 802.3Z Clause 38.68,

tested on a sample basis

Data Valid

TXi[0:9]

10-Bit Data

RFC

Data Valid

Data Valid

TCi

+/-TXi

TXi0

TXi1

TXi2

RFC

TCi