VSC7130RC(2000) Ver la hoja de datos (PDF) - Vitesse Semiconductor

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componentes Descripción

Fabricante

VSC7130RC
(Rev.:2000)

Dual Repeater/Retimer for Fibre Channel and Gigabit Ethernet

Vitesse Semiconductor 

VITESSE

SEMICONDUCTOR CORPORATION

Dual Repeater/Retimer

for Fibre Channel and Gigabit Ethernet

Advance Product Information

VSC7130

Figure 3: Active Copper GBIC Module

+TX_DAT

-TX_DAT

TX_DISABLE

TX_FAULT

+RX_DAT

-RX_DAT

RX_LOS

MOD_DEF0

MOD_DEF1

MOD_DEF2

VSC7130

SI+

CDR0

TX+

TX+

SI- Repeater

TX-

TX-

TXDIS

SO+ CDR1

RX+

SO- Repeater

RX-

RX+

RX-

SDET

OSC

SERIAL

EEPROM

Functionality

Please note that this datasheet does not completely describe the VSC7130. A companion document, the

“VSC7130 User’s Manual” describes additional applications issues and goes into great depth regarding the

Two-Wire Interface and internal register operation.

Clock Multiplier Unit and Reference Clock

A reference clock is needed for the clock multiplier unit (CMU) in order to generate the internal baud rate

clock. The VSC7130 is used for both Fibre Channel (1.0625 Gb/s) and Gigabit Ethernet (1.25 Gb/s) applica-

tions. The HALF/FULL signal indicates whether the reference clock is 1/20th of the baud rate (HIGH) or 1/

10th of the baud rate (LOW). The table below indicates the valid combinations of the HALF/FULL signal and

reference clock frequency. Combinations not listed in the table will result in abnormal functionality.

Table 1: Reference Clock Frequency Selection

HALF / FULL

HIGH

LOW

HIGH

LOW

All Other Combinations

Frequency

53.125

106.25

62.5

125

Fibre Channel @ 1.0625 Gb/s

Fibre Channel @ 1.0625 Gb/s

Gigabit Ethernet @ 1.25 Gb/s

Gigabit Ethernet @ 1.25 Gb/s

Not Allowed.

Application

Page 4

© VITESSE SEMICONDUCTOR CORPORATION

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

G52297-0, Rev. 2.3

1/17/00

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