SIT9120AC-2B2-25E125.000000

Oscillators Overview

The SiTime SIT9120AC-2B2-25E125.000000 is a MEMS-based standard clock oscillator operating at 125 MHz with ±25 ppm frequency stability. It utilizes LVDS output format and functions on a 2.5 V supply voltage within the -20°C to +70°C temperature range. The device features an enable/disable control pin and is housed in a compact 6-pin QFN surface-mount package measuring 3.2 mm x 2.5 mm.

Oscillators Feature Summary

• MEMS technology provides robust performance against shock and vibration compared to traditional quartz crystals.
• LVDS output interface ensures low power consumption and high-speed signal integrity for demanding digital applications.
• Integrated enable/disable functionality allows for precise power management and system synchronization control.

Oscillators Applications

• High-speed data communication interfaces requiring stable clock sources
• Industrial equipment operating in moderate environmental conditions
• Embedded systems utilizing LVDS-compatible logic families

Oscillators Procurement Notes

Verify that the specific part number matches the required 2.5V supply and LVDS output configuration, as the SiT9120 series offers various voltage and interface options. Confirm the AC suffix indicates the extended commercial temperature range (-20°C to +70°C) suitable for your application environment. Ensure the 6-pin QFN footprint aligns with your PCB design constraints before finalizing procurement.

Oscillators Selection Notes

Select this component when a 125 MHz clock signal with LVDS outputs is required for 2.5V logic systems. The ±25 ppm stability is adequate for general-purpose timing applications but may not suffice for high-precision networking standards requiring tighter tolerances. Consider the enable pin feature if dynamic power saving or clock gating is necessary for the target design.

Oscillators Part Context

This model belongs to the SiT9120 family of silicon MEMS oscillators, designed to replace traditional quartz crystals. The series is characterized by small form factors, wide frequency ranges, and superior reliability. The specific AC variant targets cost-sensitive applications requiring moderate stability and standard commercial temperature operation.

Oscillators Replacement Considerations

Direct replacements within the same family include SIT9120AI-2B2-25E125.000000 for industrial temperature range (-40°C to +85°C) or SIT9120AC-1B2-25E125.000000 for LVPECL output instead of LVDS. Verify pin compatibility and electrical specifications when substituting across different output formats or temperature grades.

Oscillators FAQ

What is the maximum current consumption for this oscillator?

Typical current consumption is approximately 69 mA at 2.5V, though exact values depend on load conditions and should be verified in the official datasheet.

Does this oscillator support spread spectrum modulation?

Standard SiT9120 models like this one are fixed-frequency oscillators and do not inherently support spread spectrum modulation unless specifically configured via external control pins, which is not standard for this basic LVDS variant.