DSC2033FI2-G0007

Clock Generators, PLLs, Frequency Synthesizers Overview

The DSC2033FI2-G0007 is a low-jitter configurable dual LVDS oscillator utilizing silicon MEMS technology. It features two independent LVDS outputs controlled by separate supply voltages for high isolation, with frequencies derived from a common PLL source. The device supports up to eight user-defined pre-programmed pin-selectable output frequency combinations via FS0–FS2 pins. Operating within a 2.25 V to 3.6 V supply range, it delivers excellent jitter performance and stability across industrial (-40°C to +85°C) and extended commercial temperature grades. Packaged in a miniature 14-pin 3.2x2.5 mm QFN, it offers robust shock and vibration immunity.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Dual independent LVDS outputs with separate power supplies for enhanced isolation
• Pin-selectable configuration supporting up to eight distinct frequency combinations
• MEMS-based construction providing superior shock and vibration resistance compared to quartz
• Low RMS phase jitter typically below 1 ps for high-performance timing applications

Clock Generators, PLLs, Frequency Synthesizers Applications

• Storage Area Networks including SATA, SAS, and Fibre Channel interfaces
• Passive Optical Networks such as EPON, GPON, and 10G-PON systems
• Ethernet applications covering 1G, 10GBASE-T/KR/LR/SR, and FCoE standards
• HD/SD/SDI video transmission and surveillance equipment
• PCI Express interface clocking solutions

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm the exact frequency combination and stability grade. Ensure the selected temperature range matches the operational environment requirements. Confirm package availability and lead times directly with authorized distributors or the manufacturer prior to finalizing procurement plans.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the appropriate stability grade based on system timing requirements, choosing between ±10, ±25, or ±50 ppm options. Verify that the required output frequencies are available in the pre-programmed memory configurations or request custom programming if necessary. Ensure the operating voltage range aligns with the system power supply design and consider the thermal management requirements for the specified temperature grade.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The DSC2033 series belongs to Microchip's family of low-jitter configurable oscillators designed for high-reliability applications. These devices replace traditional quartz oscillators in environments requiring robust mechanical performance. The series integrates MEMS resonators with support PLL ICs to provide flexible clocking solutions for data communication and video infrastructure markets.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements must match the 14-pin 3.2x2.5 mm QFN package and LVDS output specifications. Verify compatibility of frequency combinations and stability grades. Consider alternative MEMS oscillators from other manufacturers only if they meet the same electrical and mechanical performance criteria.

Clock Generators, PLLs, Frequency Synthesizers FAQ

How are the output frequencies selected?

Output frequencies are selected using three control pins (FS0, FS1, and FS2). These pins access one of up to eight pre-programmed frequency combinations stored in the internal OTP memory.

What is the function of the Enable pin?

The Enable pin controls the output state. Driving it high enables the outputs, while driving it low tri-states both output drivers into a high-impedance mode. Floating the pin defaults to the enabled state.

Can the two outputs have different frequencies?

Yes, the two outputs can be identical or independently derived from a common PLL frequency source, subject to specific mathematical constraints regarding even integer dividers.