VITESSE VSC8173 Datasheet

www.vitesse.com

Product Brief

9.9-10.7Gb/s 16:1 Multiplexer with Clock Generator

Physical

Layer

Products

Physical Layer Products

VSC8173

General Description

The VSC8173 consists of a 16:1 mul­tiplexer and a clock generator for use
in SONET STS-192/SDH STM-64 sys­tems. The 16:1 multiplexer accepts 16
parallel LVDS inputs at a data rate of

622.08Mb/s to 669.31Mb/s. This par­allel data stream is then serialized into
a 9.953Gb/s to 10.709Gb/s output.
Both 31 1MHz and 622MHz data clock
input modes are supported. The clock
generator creates the 9.953GHz to

10.709GHz clock signal used to re­time the transmitted serialized data.
The clock generator requires a 155 to

168MHz or 622 to 670MHz PECL ref­erence clock input. T o ease timing con­straints on the parallel interface, a 16­bit wide FIFO is included. A divided­by-16 or divide-by-64 LVDS clock out­put is available for use as a clock input
to the parallel data source. Additional
features include Bit Order Swap and
Data Polarity Invert. To assist in moni­toring device operation a Loss-of-Lock
alarm and internal temperature sens­ing are provided. The device is pack­aged in a modified 90-Ball Grid Array
(BGA).

Features:

• Fully Compliant with OIF 99.102

• SONET/SDH Jitter Compliant

• 311MHz or 622MHz Data Clock

Input Modes

• Superior Data Output Eyes

• Low Power 1.5W (Typ)

• +3.3V Single Supply

• Continuous Tuning Operation

from 9.953 to 10.709Gb/s Rates

• 155-168/622-670 MHz

Reference Clock Input

• Reliable 90-Ball BGA Package

• Up to 90°C Case Temperature

Specifications:

• 9.953 to 10.709Gb/s Continuous

Operation

• Data Output Voltage Swing:

600mV (Min)

• Data Output Rise/Fall:

25ps (Typ)

• 10ps Wideband Jitter (Max)

• Supply Voltage: 3.3V (Typ)

• Total Power Dissipation:

1.5W (Typ)

• Operating Temperature Range:

0

°C to +90°C (case)

• 15x15mm Low Profile 90 Ball

TBGA (Taped BGA) Package

For more information on Vitesse Products visit the Vitesse web site
at www.vitesse.com or contact Vitesse Sales at (800) VITESSE or

[e-mail]

© Copyright 2000 Vitesse Semiconductor Corporation

and the Vitesse logo

are all registered trademarks

of Vitesse Semiconductor Corp;oration

www.vitesse.com

Product Brief

9.9-10.7Gb/s 16:1 Multiplexer with Clock Generator

VSC8173

Physical

Layer

Products

VSC8173 Block Diagram

Benefits:

• Provides Lowest Power Solution

in its Performance Class

• Pin-compatible Upgrade Paths

to Lower Power Follow-on
Product (VSC8173LP)

• Integrated PLL Based Clock

Generator

• Meets SONET/SDH Jitter

Generation Requirements

• OIF 99.102 Compliant L VDS

Interface

• Thermal Expansion of TBGA

Package is Matched to the PC
Board for High Reliability

• Input FIFO to Simplify Parallel

Interface Timing

• Loss-of-Lock and Internal

Temperature Sensing to Assist
in Monitoring Device Operation

• Data Polarity Invert and Bit

Order Swap for Ease of Layout

Applications:

• SONET/SDH Networking

• Transponder Modules

• DWDM Systems

• G.975/709 Forward Error

Correction (FEC)

• Gigabit Ethernet

• Telecommunications Transmis-

sion Systems

• Test Equipment

REFOUT+
REFOUT-

RESETN

OVERFLOW

BITORDER

AUTORSTN

DINVERT

REFSEL

CKMODE

2

DSKEW[0:1]

LOLN

NOREFN

DETECT

LOCK

LOSS

OF

DOUT+
DOUT-

D15-

D15+

D1+

D0-

D0+

D14+

D14-

DCK+

DCK-

16:1

TIMING

REFCK+

REFCK-

PLL

FIFO

9.9-10.7G

RST OVR

D1-

DELAY

GENERATOR

DELAY

DIV

CK/32

CK/16

CK16_64+

CK16_64-