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DSC557-03

Page 1

MK-QB-P-D-120917-01-2

Crystal-less Two Output PCIe Gen1/2/3 Clock Generator

DSC557-03

General Description

The DSC557-03 is a crystal-less, two output

PCI express clock generator meeting Gen1,

Gen2, and Gen3 specifications. The clock

generator

uses

proven

silicon

MEMS

technology to provide 100MHz* differential

output clocks with excellent jitter and

stability over a wide range of supply

voltages and temperatures. By eliminating

the external quartz crystal, the DSSC557-03

significantly

enhances

reliability

and

accelerates product development, while

meeting stringent clock performance criteria

for a variety of communications, storage,

and networking applications.

DSC557-03 has an Output Enable / Disable

feature allowing it to disable the outputs

when OE is low. The device is available in

two

different

packages;

a

“drop-in”

replacement 16 pin TSSOP or a space

saving 14 pin QFN (77% less board space).

Additional output formats are also available

in any combination of LVPECL, LVDS, and

HCSL.

Block Diagram

Control Circuitry

MEMS

PLL

Output

Control

and

Divider

CLK1+

CLK1-

CLK0+

CLK0-

OE

* Clk0+/- and Clk1+/- are 100 MHz as per PCIe

standards. For other frequencies, please

contact the factory.

Features

 Meets PCIe Gen1, Gen2 & Gen3 specs.

 Available Output Formats:

o

HCSL, LVPECL, or LVDS

o

HCSL/LVPECL, HCSL/LVDS, LVPECL/LVDS

 Wide Temperature Range

o

Ext. Industrial: -40° to 105° C

o

Industrial: -40° to 85° C

o

Ext. commercial: -20° to 70° C

 Supply Range of 2.25 to 3.6 V

 Low Power Consumption

o

30% lower than competing devices

 Excellent Shock & Vibration Immunity

o

Qualified to MIL-STD-883

 Available Footprints:

o

16 TSSOP

o

14 QFN

 Lead Free & RoHS Compliant

 Short Lead Time: 2 Weeks

Applications

 Communications/Networking

o

Ethernet

o

1G, 10GBASE-T/KR/LR/SR, and FcoE

o

Routers and Switches

o

Gateways, VoIP, Wireless AP’s

o

Passive Optical Networks

 Storage

o

SAN, NAS, SSD, JBOD

 Embedded Applications

o

Industrial, Medical, and Avionics

o

Security Systems and Office

Automation

o

Digital Sinage, POS and others

 Consumer Electronics

o

Smart TV, Bluray, STB