VSC7135 查看數據表（PDF） - Vitesse Semiconductor

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VSC7135

1.25Gbits/sec Gigabit Ethernet Transceiver

Vitesse Semiconductor 

VITESSE

SEMICONDUCTOR CORPORATION

Data Sheet

VSC7135

1.25Gbits/sec

Gigabit Ethernet Transceiver

AC Characteristics

Figure 4: Transmit Timing Waveforms

REFCLK

T1

T2

T0:9

10 Bit Data

Data Valid

Data Valid

Data Valid

Table 1: Transmit AC Characteristics

Parameters

T1

T2

TSDR,TSDF

TLAT

TJ

TDJ

Description

Min

Max Units

T0:9 Setup time to the rising

edge of REFCLK

1.5

T0:9 hold time after the

rising edge of REFCLK

1.0

—

ns.

—

ns.

TX+/TX- rise and fall time

—

300

ps.

Latentcy from rising edge of

REFCLK to T0 appearing on 11bc - 1ns

ns.

TX+/TX-

Transmitter Output Jitter Allocation

Total data output jitter (p-p)

—

192

ps.

Serial data output

deterministic jitter (p-p)

—

80

ps.

Conditions

Measured between thevalid

data level of T0:9 to the 1.4V

point of REFCLK

20% to 80%, 75 Ohm load to

Vss, Tested on a sample basis

bc = Bit clocks

ns = Nano second

IEEE 802.3Z Clause 38.68,

tested on a sample basis

IEEE 802.3Z Clause 38.69,

tested on a sample basis

G52146-0, Rev. 4.0

5/28/98

© VITESSE SEMICONDUCTOR CORPORATION

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

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