DSC400-1111Q0025KE1T

Clock Generators, PLLs, Frequency Synthesizers Overview

The DSC400-1111Q0025KE1T is a four-output crystal-less clock generator utilizing PureSilicon MEMS technology. It operates within a supply voltage range of 2.25V to 3.6V and supports frequencies from 2.3 MHz to 460 MHz for differential outputs, or up to 170 MHz for LVCMOS. The device features ±50 ppm frequency stability and low RMS phase jitter under 1 ps. It includes two independent output banks with selectable pre-configured frequency sets via FSB1 and FSB2 pins. The component is housed in a 20-pin QFN package (5.0 mm x 3.2 mm) and is qualified to AEC-Q100 standards.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Crystal-less operation using integrated MEMS resonator eliminates external quartz requirements.
• Four format-configurable outputs supporting LVPECL, LVDS, HCSL, and LVCMOS standards.
• Dual independent power supplies (VDD1, VDD2) provide optimized noise isolation between output banks.
• Hardware pin-selectable frequency tables allow switching between two pre-configured frequency sets per bank.

Clock Generators, PLLs, Frequency Synthesizers Applications

• Ethernet interfaces including 1G, 10GBASE-T/KR/LR/SR, and FCoE
• Storage Area Networks such as SATA, SAS, and Fibre Channel
• Passive Optical Networks including EPON, GPON, and 10G-PON
• Automotive embedded systems requiring AEC-Q100 qualification

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory-assigned frequency code corresponding to the Q0025 suffix directly with Microchip Technology or authorized distributors. Confirm that the tape and reel packaging aligns with automated assembly requirements. Ensure the extended commercial temperature rating (-20°C to +70°C) meets the operational environmental specifications of the target application before finalizing procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when LVCMOS output formats are required across all four channels, as indicated by the '1111' configuration code. Verify that the ±50 ppm stability specification satisfies the system timing budget. Consider the separate VDD1 and VDD2 power domains if strict noise isolation between clock banks is necessary for the design.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the DSC400 series of configurable clock generators manufactured by Microchip Technology. The series leverages PureSilicon MEMS technology to replace traditional quartz oscillators, offering superior shock and vibration immunity. The DSC400 family provides flexible output formatting and frequency selection options suitable for high-reliability digital communication applications.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements must match the 20-pin QFN footprint and support the same LVCMOS output configuration. Verify that alternative MEMS clock generators offer comparable jitter performance and AEC-Q100 automotive qualification if used in automotive contexts. Cross-reference the specific frequency table assigned to Q0025 to ensure functional equivalence.