VITESSE VSC8141TW, VSC8141QR Datasheet

Product Summary

VSC8141

Multi-Rate 16:1 SONET/SDH Transceiver with Integrated Clock Generator

Features

• Multi-Rate Transceiver for SONET OC-48, OC-24
OC-12, OC-3, and Gigabit Ethernet Rates

• 16-Bit LVPECL Low-Speed Interface

• On-Chip PLL-Based Clock Generator

• High-Speed Clock Output Power-Down Option

• Equipment, Facility and Split Loopback Modes

General Description

The VSC8141 is a SONET/SDH compatible 3.3V multi-rate transceiver with integrated clock generator for
use in SONET/SDH systems operating at OC-48, OC-24, OC-12, OC-3, or Gigabit Ethernet data rates. The
internal clock generator uses a phase-locked loop (PLL) to mul tiply either a 77.7 6MHz or 155.52MHz reference
clock for internal logic and output retiming. The 16-bit parallel LVPECL interface incorporates an on-board
FIFO to address loop timing design issues. Facility and Equipment Loopbacks can be configured separately or
simultaneously. The VSC8141 supports 3.3V operation with 2.3 Watts maximum power (1.8 Watts typical) and
is packaged in a thermally-enhanced 128-pin PQFP or 208-pin TBGA package.

• Loss of Signal (LOS) Detect Input

• Exceeds Bellcore Jitter Specifications

• Single 3.3V Power Supply

• 1.8 W Typical Power Dissipation

• Packages: 128-Pin PQFP (14x20x2mm) or

208-Pin TBGA 23x23x1.55mm )

Block Diagram

High-Speed Data

High-Speed Clock

High-Speed Loopback

OC-48/12/3 GbE Control

High-Speed Data

High-Speed Clock

Order Informatio n

Product Package

VSC8141QR 128-Pin PQFP, 14x20mm
VSC8141TW 208-Pin TBGA, 23x23mm

DEMUX

Test

MUX

VSC8141

CMU

FIFO

16

Low-Speed Data

Low-Speed Clock

Low-Speed Loopback

Reference Clock

16

Low-Speed Data

Low-Speed Clock

Low-Speed Clock

Notice

Vitesse Semiconductor Corporation (“Vitesse”) provides this document for informational purposes only. This document contains pre-production information about Vit­esse products in their concept, development and/or testing phase. All information in this document, including descriptions of features, functions, performance, technical
specifications and availability, is subject to change without notice at any time. Nothing contained in this document shall be construed as extending a ny warra nty o r
promise, express or implied, that any Vitesse product will be available as described or will be suitable for or will accomplish any particular task.

Vitesse products are not intended for use in life support appliances, devices or systems. Use of a Vitesse product in such applications without written consent is prohib­ited.

PS040201.1

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