18QHTF21-44.900-OE

Oscillators Overview

The 18QHTF21-44.900-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 44.9 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning at 1.8V supply voltage. It features an enable/disable control pin for power management flexibility. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• LVCMOS output interface for digital compatibility
• Integrated enable/disable functionality for power control
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded controller clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design specifications. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD footprint matches the PCB layout constraints. Check RoHS compliance status if environmental regulations apply to the final product assembly.

Oscillators Selection Notes

Select this component when a precise 44.9 MHz clock source is required for low-power digital circuits. The LVCMOS output ensures direct interfacing with standard logic families without additional level shifting. The enable pin allows for dynamic power saving during idle periods. Consider thermal performance and stability requirements relative to the operating environment.

Oscillators Part Context

This part belongs to the QHTF series of quartz crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a standardized small form factor. Mercury Electronic specializes in frequency control products including crystals, oscillators, and filters, providing solutions for telecommunications and consumer electronics markets.

Oscillators Replacement Considerations

Direct substitutes include other 44.9 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical parameters such as jitter and phase noise before substitution. Cross-reference with similar models like 18QHTF21-44.200-OE only if frequency adjustment is acceptable.