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DSC557-053234KL0T Datasheet(PDF) 1 Page - Micrel Semiconductor |
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DSC557-053234KL0T Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 7 page ______________________________________________________________________________________________________________________________________________ DSC557-05 Page 1 Crystal-less™ Four Output PCIe Clock Generator DSC557-05 General Description The DSC557-05 is a Crystal-less™, four output PCI express clock generator meeting Gen1, Gen2, and Gen3 specifications. The clock generator uses proven silicon MEMS technology to provide excellent jitter and stability over a wide range of supply voltages and temperatures. By eliminating the external quartz crystal, MEMS clock generators significantly enhance reliability and accelerate product development, while meeting stringent clock performance criteria for a variety of communications, storage, and networking applications. DSC557-05 has an Output Enable / Disable feature allowing it to disable all outputs when OE1 and OE2 are low. Each output enable pin controls two banks of synchronous PCIe clocks. See the OE function diagram for more detail. The device is available in a 20 pin QFN. Additional output formats are in any combination of LVPECL, LVDS, and HCSL. Block Diagram * Clk0+/-, Clk1+/-, Clk2 +/- and Clk3 +/- 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 Mixed Outputs: LVPECL/HCSL/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 20 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 Signage, POS and others Consumer Electronics o Smart TV, Bluray, STB |
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