VSC7186 データシートの表示（PDF） - Vitesse Semiconductor

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VSC7186

Quad Transceiver for Gigabit Ethernet

Vitesse Semiconductor 

VITESSE

SEMICONDUCTOR CORPORATION

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VSC7186

AC Characteristics

Figure 3: Transmit Timing Waveforms

Quad Transceiver

for Gigabit Ethernet

RFC1

TXi(0:9)

10 Bit Data Data Valid

T1

T2

Data Valid

Data Valid

+/-SOi

RFC1

TLAT

S0 S1 S2

Table 2: Transmitter AC Characteristics

Parameter

T1

T2

TSDR,TSDF

TLAT

RJ

DJ

Description

Min Typ Max

Ti(0:9) Setup time to the rising

edge of RFC1

1.5

—

—

Ti(0:9) hold time after the

rising edge of RFC1

1.0

—

—

Ti+/Ti- rise and fall time

—

—

300

Latency from rising edge of

RFC1 to Ti0 appearing on SO

bit 0i

7bc +

0.66ns

—

7bc +

1.46ns

Transmitter Output Jitter

Random jitter (RMS)

—

5

8

Serial data output deterministic

jitter (pk-pk)

—

35

80

Units

ns.

ns.

ps.

Note:

ps.

ps.

Conditions

Measured between the valid data

level of Ti(0:9) to the 1.4V point of

RFC1

20% to 80%, 75 Ohm load to Vdd/

2, Tested on a sample basis

bc = bit clocks

ns = nanoseconds

Measured at SO+/-, 1 sigma

deviation of 50% crossing pt

IEEE 802.3Z Clause 38.68, Tested

on a sample basis

G52306-0, Rev. 2.0

3/27/00

 VITESSE SEMICONDUCTOR CORPORATION

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

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