DSC557-0344FI1B

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Microchip Technology

DUAL-OUTPUT CRYSTAL-LESS PCIE CLOCK GEN

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DSC557-0344FI1B

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Microchip Technology

DUAL-OUTPUT CRYSTAL-LESS PCIE CLOCK GEN

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Description Specifications Series Pricing CAD Documents

Description

General part information

DSC557 Series

The DSC557-03 is a crystal-less, two output PCI express clock generator meeting Gen1, Gen2, Gen3 and Gen4 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 DSC557-03 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 space saving 14 pin QFN (77% less board space) or a 16 pin TSSOP that is "drop-in" replacement to existing ICS557-03 clock. Additional LVDS and LVCMOS output formats are available in addition to the default HCSL output format.

Technical Specifications

Parameters and characteristics for this part

Specification	DSC557-0344FI1B

Mounting Type	Surface Mount
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output	HCSL
Package / Case	14-VFQFN Exposed Pad
Voltage - Supply (Maximum)	3.63 V
Voltage - Supply (Minimum)	2.25 V

DSC557 Series

Three-Output Crystal-less PCIe Clock Gen

Part	Package / Case	Mounting Type	Operating Temperature (Min)	Operating Temperature (Max)	Package Width	Package Length	Package Name	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Number of Circuits	Frequency - Max	Output	Differential Output	Differential Input	PLL	Output Ratio	Main Purpose
Microchip Technology DSC557-0344FL1	14-VFQFN Exposed Pad	Surface Mount	-40 °C	105 °C	3.2 mm	2.5 mm	14-QFN	3.6 V	2.25 V	1	100 MHz	HCSL	Yes	No	Yes	2	PCI Express (PCIe)
Microchip Technology DSC557-0344FE0	14-VFQFN Exposed Pad	Surface Mount	-20 °C	70 °C				3.6 V	2.25 V	1	100 MHz	HCSL LVDS	Yes	No	Yes	2	PCI Express (PCIe)
Microchip Technology DSC557-054444KI2	20-VFQFN Exposed Pad	Surface Mount	-40 °C	85 °C				3.6 V	2.25 V	1	100 MHz 460 MHz	HCSL	Yes	No	Yes	4	PCI Express (PCIe)
Microchip Technology DSC557-04333KI1	20-VFQFN Exposed Pad	Surface Mount	-40 °C	85 °C				3.6 V	2.25 V	1	460 MHz	LVDS	Yes	No	Yes	3	PCI Express (PCIe)
Microchip Technology DSC557-04444KI1T	20-VFQFN Exposed Pad	Surface Mount	-40 °C	85 °C				3.6 V	2.25 V	1	460 MHz	HCSL	Yes	No	Yes	3	PCI Express (PCIe)
Microchip Technology DSC557-0344FE0T	14-VFQFN Exposed Pad	Surface Mount	-20 °C	70 °C				3.6 V	2.25 V	1	100 MHz	HCSL LVDS	Yes	No	Yes	2	PCI Express (PCIe)
Microchip Technology DSC557-054444KI1	20-VFQFN Exposed Pad	Surface Mount	-40 °C	85 °C				3.6 V	2.25 V	1	100 MHz 460 MHz	HCSL	Yes	No	Yes	4	PCI Express (PCIe)
Microchip Technology DSC557-0341FE1	14-VFQFN Exposed Pad	Surface Mount	-20 °C	70 °C	3.2 mm	2.5 mm	14-QFN	3.6 V	2.25 V	1	100 MHz	HCSL LVCMOS	Yes	No	Yes	2	PCI Express (PCIe)
Microchip Technology DSC557-0344FL1T	14-VFQFN Exposed Pad	Surface Mount	-40 °C	105 °C	3.2 mm	2.5 mm	14-QFN	3.6 V	2.25 V	1	100 MHz	HCSL	Yes	No	Yes	2	PCI Express (PCIe)
Microchip Technology DSC557-0344FE1	14-VFQFN Exposed Pad	Surface Mount	-20 °C	70 °C	3.2 mm	2.5 mm	14-QFN	3.6 V	2.25 V	1	100 MHz	HCSL	Yes	No	Yes	2	PCI Express (PCIe)