SIT9120AC-2B3-33E74.175824

Oscillators Overview

The SIT9120AC-2B3-33E74.175824 is a MEMS-based standard XO oscillator manufactured by SiTime. It operates at a frequency of 74.175824 MHz with an LVDS output interface. The device supports a supply voltage range of 2.25V to 3.63V and features enable/disable control functionality. It is housed in a compact 6-SMD, No Lead package measuring 3.2 mm x 2.5 mm. The unit provides a frequency stability of 20 ppm over the commercial temperature range of -20°C to +70°C.

Oscillators Feature Summary

• Utilizes silicon MEMS resonator technology for high reliability and shock resistance compared to traditional quartz.
• Features LVDS differential output signaling for improved signal integrity and noise immunity in high-speed digital systems.
• Includes integrated enable/disable control pin for power management and system sequencing flexibility.

Oscillators Applications

• High-speed serial communication interfaces requiring precise clocking
• Data acquisition systems needing stable timing references
• Industrial control equipment operating within commercial temperature ranges

Oscillators Procurement Notes

Verify the complete part number against official SiTime documentation to ensure correct voltage, package, and stability specifications. Confirm that the LVDS output type matches the receiving circuit requirements. Check for any specific ordering suffixes that may alter electrical characteristics or packaging details before finalizing procurement.

Oscillators Selection Notes

Select this component when a small form factor and robust mechanical performance are required. The MEMS technology offers superior vibration tolerance compared to quartz alternatives. Ensure the 20 ppm stability meets the system's jitter and phase noise requirements. Verify compatibility with the 2.25V to 3.63V supply range and LVDS input thresholds of the downstream logic.

Oscillators Part Context

This model belongs to the SiT9120 family of precision MEMS oscillators. The family is characterized by its small footprint and wide operating voltage range. It serves as a direct replacement for larger quartz crystals in space-constrained designs. The AC designation indicates the commercial temperature grade suitable for general electronic applications.

Oscillators Replacement Considerations

Direct substitutes include other SiT9120 variants with matching frequency and package dimensions. Cross-reference with competitor MEMS oscillators offering similar LVDS outputs and 20 ppm stability. Ensure pinout compatibility and thermal performance align with the original design constraints.