SIT8920BMT21-33N-25.000000

Oscillators Overview

The SiTime SIT8920BMT21-33N-25.000000 is a MEMS XO oscillator operating at 25 MHz with LVCMOS/LVTTL output. It functions within a 3.3V supply range and supports an industrial temperature range of -40°C to +125°C. The device features a 4-SMD, No Lead package (2.5x2.0mm) and includes enable/disable functionality. It offers frequency stability options including ±20ppm and meets AEC-Q100 standards for automotive reliability.

Oscillators Feature Summary

• MEMS-based timing solution providing robust performance in harsh environments
• LVCMOS and LVTTL compatible output formats for broad interface integration
• Integrated enable/disable control for power management optimization
• AEC-Q100 qualified construction suitable for automotive applications

Oscillators Applications

• Automotive electronic systems requiring high reliability
• Industrial motor control and automation equipment
• Power amplifier timing references
• Aerospace and defense instrumentation

Oscillators Procurement Notes

Verify the specific frequency stability grade required, as the base model designation may correspond to different tolerance levels such as ±20ppm or ±25ppm depending on the exact suffix configuration. Confirm that the 3.3V supply voltage aligns with the target system design. Ensure the 4-SMD package dimensions are compatible with the PCB footprint. Check for any specific manufacturing notes regarding handling and soldering profiles for MEMS devices.

Oscillators Selection Notes

Select this component when a ruggedized, automotive-grade MEMS oscillator is needed for 25 MHz applications. It is suitable for designs requiring low vibration sensitivity and high shock resistance compared to traditional quartz. Consider the enable pin feature if dynamic power saving is required. Verify that the output drive strength meets the load requirements of the connected circuitry.

Oscillators Part Context

This part belongs to the SiT8920 series, which covers frequencies from 1 MHz to 110 MHz. The series is characterized by wide temperature operation, low phase jitter, and high immunity to mechanical shock and vibration. It serves as a direct replacement for quartz oscillators in demanding environments where size and reliability are critical constraints.

Oscillators Replacement Considerations

Direct cross-replacement with other brands requires careful verification of pinout compatibility and electrical parameters. While functionally similar MEMS oscillators exist, specific substitution should be validated against the original datasheet requirements for frequency stability and output voltage levels.