VSC7182 Ver la hoja de datos (PDF) - Vitesse Semiconductor

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VSC7182

Quad Transceiver for Gigabit Ethernet and Fibre Channel

Vitesse Semiconductor 

® VITESSE

SEMICONDUCTOR CORPORATION

Quad Transceiver

for Gigabit Ethernet and Fibre Channel

Advance Product Information

VSC7182

AC Characteristics

Figure 3: Transmit Timing Waveforms

RFC

TCi

TXi[0:9]

10-Bit Data

Data Valid

T1

T2

Data Valid

Data Valid

+/-TXi

RFC

TCi

TRLAT

TTLAT

TXi0 TXi1 TXi2

Table 3: Transmitter AC Characteristics

Parameter

T1

T2

TSDR,TSDF

TRLAT

TTLAT

RJ

DJ

Description

Min Typ Max

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

of TCi or RFC

1.5

—

—

TXi[0:9] hold time after the rising

edge of TCi or RFC

1.0

—

—

TXi+/TXi- rise and fall time

—

—

300

Latency from rising edge of RFC to

TXi0 appearing on TX+/TX-

7bc +

0.66ns

—

7bc +

1.46ns

Latency from rising edge of TCi to

TXi0 appearing on TX+/TX-

5bc +

0.66ns

—

11bc

+

1.46ns

Transmitter Output Jitter

Random jitter (rms)

—

5

8

Serial data output deterministic jitter

(pk-pk)

—

35

80

Units

ns

ns

ps

ns

ps

ps

Conditions

Measured between the valid

data level of TXi[0:9] to the

1.4V point of TCi or RFC

20% to 80%, 75Ω load to

VDD/2, tested on a sample

basis

bc = bit clocks

ns = nanoseconds

bc = bit clocks

ns = nanoseconds

Measured at SO+/-, 1 sigma

deviation of 50% crossing

point

IEEE 802.3Z Clause 38.68,

tested on a sample basis

Page 6

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

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

Internet: www.vitesse.com

G52307-0, Rev 2.2

10/10/00

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