VSC7139 查看數據表（PDF） - Vitesse Semiconductor

零件编号

产品描述 (功能)

生产厂家

VSC7139

Quad Transceiver for Gigabit Ethernet and Fibre Channel

Vitesse Semiconductor 

VITESSE

SEMICONDUCTOR CORPORATION

Quad Transceiver for

Gigabit Ethernet and Fibre Channel

Preliminary Datasheet

VSC7139

REF

TBCx

Figure 5: REF and TBCx Waveforms

TL

TH

VIH(MIN)

VIL(MAX)

RFCO0

RFCO1

TP

Table 5: Reference Clock Requirements

Parameters

Description

FR

Frequency Range

FO

Frequency Offset

TP

DC

TR/TF

DC

TRCR,TRCF

Delay from REF to RFCO0/1

RFC0/1 Duty Cycle

RFC0/1 rise and fall time

REF/TBCx duty cycle

REF/TBCx rise and fall time

Min Typ Max Units

Conditions

Range over which both transmit

105 — 136 MHz and receive reference clocks on

any link may be centered

Maximum frequency offset

-200 — 200 ppm between transmit and receive

reference clocks on one link

1.97 — 3.58 ns

40

—

60

%

0.25 —

1.5

ns

Between VIL(max) and VIH(min)

35

—

65

% Measured at 1.4V

—

—

1.5

ns

Between VIL(max) and VIH(min)

Page 8

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

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

Internet: www.vitesse.com

G52196-0, Rev 3.3

5/14/01

Share Link: