18QHTF21-57.413667-PD

Overview

The 18QHTF21-57.413667-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.413667 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features a Standby function for power down control. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated standby capability for power management
• Compact 4-SMD no-lead surface mount packaging

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Check for any specific handling instructions regarding ESD sensitivity during assembly.

Selection Notes

Select this component when a precise 57.413667 MHz clock source is required with low voltage operation. Consider the LVCMOS output swing limits for your receiving logic levels. Evaluate the thermal performance within the 4-SMD package for your enclosure environment. Compare power consumption in active and standby modes against system energy budgets.

Part Context

This part belongs to the Mercury Electronics 18QHTF series of standard XO oscillators. The series offers various frequencies with consistent 1.8V operation and LVCMOS outputs. The 'PD' suffix indicates the inclusion of a power-down or standby pin functionality, distinguishing it from non-stanby variants in the same form factor.

Replacement Considerations

Direct replacements must match the 57.413667 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility if substituting with other manufacturers' equivalents. Ensure equivalent frequency stability and phase noise specifications are met for the application.