© VITESSE SEMICONDUCTOR CORPORATION

Page 1

1/17/00

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

VITESSE

SEMICONDUCTOR CORPORATION

10-bit Transceiver for Fibre

Channel and Gigabit Ethernet

Advance Product Information

VSC7133

G52187-0 Rev. 2.4

Features

General Description

The VSC7133 is a full-speed Fibre Channel and Gigabit Ethernet Transceiver with industry-standard

pinouts. It accepts 10-bit 8B/10B encoded transmit data, latches it on the rising edge of the TTL/PECL REF-

CLK and serializes it onto the TX PECL differential outputs at a baud rate which is ten times the REFCLK fre-

quency. Serial data input on the RX PECL differential inputs is resampled by the Clock Recovery Unit,

deserialized onto the 10-bit receive data bus synchronously to complementary divide-by-twenty clocks. The

VSC7133 receiver detects “Comma” characters for frame alignment. An analog/digital signal detection circuit

indicates that a valid signal is present on the RX input. A cable equalizer compensates for Inter Symbol Interfer-

ence in order to increase maximum cable distances. The VSC7133 contains PLL circuitry for synthesis of the

baud-rate transmit clock, and extraction of the clock from the received serial stream. The VSC7133 is similar to

the VSC7123 but has either a TTL or a PECL reference clock.

VSC7133 Block Diagram

• 802.3z Gigabit Ethernet Compliant 1.25

Gb/s Transceiver

• ANSI X3T11 Fibre Channel Compliant

1.0625 Gb/s Transceiver

• 0.98 to 1.36 Gb/s Full Duplex Operation

• 10 Bit TTL Interface for Transmit and

Receive Data

• TTL or PECL Reference Clock

• Automatic Lock-to-Reference

• RX Cable Equalization and Signal Detect

• JTAG Access Port for Testability

• 64-pin, 10mm PQFP Packaging

• Single +3.3V Supply, 650 mW

RX+

RX-

Q D

Serial to

Parallel

Clock

Recovery

÷10

Comma

R(0:9)

COMDET

ENCDET

T(0:9)

x10 Clock

Multiply

Parallel

to Serial

TX+

TX-

EWRAP

÷20

RCLK

10

10

2:1

RCLKN

Signal

Detect

Q D

QD

Detect

SIGDET

D Q

D Q

NOT SHOWN: JTAG Boundary Scan

REFCLKP

REFCLKN