DSC557-03 Datasheet, PDF (1/9 Pages) Micrel Semiconductor – Crystal-less Two Output PCIe Gen1/2/3 Clock Generator

DSC557-03
Crystal-less Two Output PCIe Gen1/2/3 Clock Generator
General Description
Features
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
 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
Control Circuitry
MEMS
PLL
OE
Output
Control
and
Divider
CLK0+
CLK0-
CLK1-
CLK1+
* Clk0+/- and Clk1+/- are 100 MHz as per PCIe
standards. For other frequencies, please
contact the factory.
 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
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DSC557-03
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