18QHTF21-25.5625-PD

Oscillators Overview

The 18QHTF21-25.5625-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 25.5625 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a Standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports Standby mode for power down operation
• Utilizes LVCMOS output logic interface
• Housed in a 4-SMD, No Lead surface-mount package

Oscillators Applications

• General electronic timing circuits
• Digital signal processing systems
• Communication equipment requiring stable clock sources

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target application design before procurement. Ensure that the 1.8V supply voltage aligns with the system power architecture. Confirm that the 4-SMD, No Lead package dimensions are compatible with the PCB footprint to avoid assembly issues during manufacturing.

Oscillators Selection Notes

Select this component when a 25.5625 MHz clock signal is required with low voltage operation. Consider the LVCMOS compatibility with downstream digital logic levels. Evaluate the need for standby functionality to manage power consumption in battery-operated or energy-efficient designs compared to continuous-operation alternatives.

Oscillators Part Context

This part belongs to the QHTF series of quartz oscillators from Mercury Electronic. The series typically offers various frequencies and voltage options within similar form factors. The 'PD' suffix likely indicates specific packaging or testing parameters defined by the manufacturer, distinguishing it from other variants in the same frequency family.

Oscillators Replacement Considerations

Direct substitutes may include other 25.5625 MHz LVCMOS oscillators in 4-SMD packages from different manufacturers, provided pinout and electrical specifications match. Verify equivalent performance metrics such as phase noise and stability before substitution.