18QHTF21-39.500-OE

Oscillators Overview

The 18QHTF21-39.500-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 39.5 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage range that includes 1.8V operation and features an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output interface
• Enable/Disable control functionality
• Surface-mount SMD package

Oscillators Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded microcontroller timing

Oscillators Procurement Notes

Verify the specific operating voltage requirements against the target system design to ensure compatibility with the 1.8V specification. Confirm that the LVCMOS output levels match the receiving input thresholds. Ensure the enable pin logic aligns with the control circuitry. Validate the 4-SMD footprint dimensions against the PCB layout guidelines provided in the official datasheet to guarantee proper soldering and mechanical stability.

Oscillators Selection Notes

Select this component when a stable 39.5 MHz reference is required for low-voltage digital circuits. The enable feature allows for dynamic power saving in battery-operated devices. Consider the small form factor for space-constrained designs. Verify temperature stability requirements against the standard XO specifications before finalizing the bill of materials.

Oscillators Part Context

This part belongs to the Mercury Electronics 18QHTF series of surface-mount oscillators. The series offers various frequencies and voltage options. The 'OE' suffix typically denotes specific ordering or packaging variations defined by the manufacturer. This model represents a standard frequency option within the product line.

Oscillators Replacement Considerations

Direct substitutes include other 39.5 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Ensure equivalent electrical parameters such as supply voltage and output swing are matched. Check pinout compatibility if cross-referencing with different brands.