VSC7125QN 查看數據表（PDF） - Vitesse Semiconductor

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VSC7125QN

1.0625 Gbits/sec Fibre Channel Transceiver

Vitesse Semiconductor 

Data Sheet

VSC7125

VITESSE

SEMICONDUCTOR CORPORATION

Figure 4: Transmit Timing Waveforms

1.0625 Gbits/sec Fibre

Channel Transceiver

REFCLK

T0:9

10 Bit Data

Data Valid

T1

T2

Data Valid

Data Valid

AC Characteristics

Table 1: Transmit AC Characteristics

Parameters

T1

T2

TSDR,TSDF

TLAT

Trj

TDJ

Description

Min

Max Units

T0:9 Setup time to the rising

edge of REFCLK

1.5

—

ns.

T0:9 hold time after the

rising edge of REFCLK

TX+/TX- rise and fall time

1.0

—

ns.

—

300

ps.

Latency from rising edge of

REFCLK to T0 appearing on 11bc - 1ns

ns.

TX+/TX-

Transmitter Output Jitter Allocation

Serial data output random

jitter (RMS)

—

20

ps.

Serial data output

deterministic jitter (p-p)

—

100

ps.

Conditions

Measured between the valid

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

RMS, tested on a sample basis

(refer to Figure 8)

Peak to peak, tested on a sample

basis (refer to Figure 8)

G52121-0, Rev. 4.1

4/23/98

© VITESSE SEMICONDUCTOR CORPORATION

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

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