DSC2042FI1-M0005

Clock Generators, PLLs, Frequency Synthesizers Overview

The DSC2042FI1-M0005 is a low-jitter configurable dual-output oscillator utilizing silicon MEMS technology. It provides HCSL and LVPECL outputs with frequencies ranging from 2.3 MHz to 460 MHz. The device features ±25 ppm frequency stability, operates on a 2.25 V to 3.6 V supply, and supports up to eight pin-selectable pre-programmed frequency combinations via FS0–FS2 control pins. It is housed in a 14-pin 3.2x2.5 mm QFN package and functions within an industrial temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Dual independent outputs (HCSL and LVPECL) controlled by separate supply voltages for high isolation
• Pin-selectable configuration supporting up to eight user-defined pre-programmed output frequency combinations
• Silicon MEMS construction providing excellent shock and vibration immunity qualified to MIL-STD-883

Clock Generators, PLLs, Frequency Synthesizers Applications

• Storage Area Networks including SATA, SAS, and Fibre Channel
• Passive Optical Networks such as EPON, GPON, and 10G-PON
• Ethernet applications covering 1G, 10GBASE-T/KR/LR/SR, and FCoE
• HD/SD/SDI Video and Surveillance systems
• PCI Express interfaces

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type, temperature grade, and stability rating. Confirm whether the component is supplied in tape-and-reel or tube packaging based on the designated packing code. Ensure compatibility with standard reflow soldering profiles and validate that the selected frequency combination matches the required system design specifications.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when requiring a compact, high-reliability clock source with mixed differential output formats. The ±25 ppm stability suits general-purpose networking and storage timing requirements. Consider the wide operating voltage range and low power consumption during enable/disable states. Verify that the required frequency pairs fall within the supported 2.3 MHz to 460 MHz range for both outputs.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the DSC2042 series of low-jitter configurable oscillators. It utilizes Micrel's silicon MEMS technology to replace traditional quartz crystals, offering superior resistance to mechanical stress. The series supports various stability grades and temperature ranges, allowing designers to choose between commercial and industrial specifications based on environmental constraints.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements require matching the 14-pin 3.2x2.5 mm QFN footprint and dual-output HCSL/LVPECL configuration. Verify that substitute devices support the same frequency range and provide equivalent phase jitter performance. Check if alternative parts offer similar pin-selectable frequency switching capabilities without requiring firmware changes.