VITESSE

SEMICONDUCTOR CORPORATION

®

Advance Product Information

VSC7182

Quad Transceiver

for Gigabit Ethernet and Fibre Channel

G52307-0, Rev 2.2

Page 1

10/10/00

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

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

Internet: www.vitesse.com

Features

General Description

The VSC7182 is a full-speed quad Fibre Channel and Gigabit Ethernet transceiver IC. Each of the four

transmitters has a 10-bit wide bus, running up to 136MHz, which accepts 8B/10B encoded transmit characters

and serializes the data onto high-speed differential outputs at speeds up to 1.36Gb/s. The transmit data can be

synchronous to the reference clock, a common transmit byte clock or a per-channel transmit byte clock. Each

receiver samples serial receive data, recovers the clock and data, deserializes it into 10-bit receive characters,

outputs a recovered clock and detects “Comma” characters. The VSC7182 contains on-chip Phase-Lock Loop

(PLL) circuitry for synthesis of the baud-rate transmit clock and extraction of the clocks from the received serial

streams. The VSC7182 also includes a receiver squelch circuit to control the parallel data bus in the absence of

serial input.

VSC7182 Block Diagram (1 of 4 Channels)

• Four Complete Transmitter/ Receiver Functions

in a Single Integrated Circuit

• Full Fibre Channel (T11) and Gigabit Ethernet

(IEEE 802.3z) Compliance

• 1.05Gb/s to 1.36Gb/s Operation per Channel

• Common or Per-Channel Transmit Byte Clocks

• TTL or PECL Reference Clock Input

• Receiver Squelch Circuit

• Common and Per-Channel, Serial and Parallel

Loopback Controls

• Common Comma Detect Enable Inputs

• Per-Channel Comma Detect Outputs

• Cable Equalization in Receivers

• Replacement For Agilent’s HDMP-1682

• 3.3V Power Supply, 2.67 W Max Dissipation

• 208-Pin, 23mm BGA Packaging

RFCT

CAP0

CAP1

RFC+

RFC-

RFCM

SI+

SI-

Q D

Serial to

Parallel

Clock

Recovery

÷10

Comma

RXi[0:9]

Clock

Parallel

to Serial

SO+

SO-

10

10

Q D

Q

D

Detect

D Q

D Q

Multiply

Unit

x10/x20

1

0

RCi1

RCi0

SYNi

SYNC

PLUP

SLPN

TXi[0:9]

TCi

4

4

1

0

Loopback

Control

LPNi

4

RCM

÷10/

÷20

SEL

RFCO0

RFCO1

LTCN