18QHTF21-15.624-PD

Oscillators Overview

The 18QHTF21-15.624-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 15.624 MHz and utilizes LVCMOS output logic levels. The device is designed for operation with a supply voltage of 1.8V. It features a standby function, allowing for power down capabilities to reduce energy consumption when the oscillator is not in active use. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.

Oscillators Feature Summary

• Supports LVCMOS output interface for standard digital logic compatibility
• Includes standby mode functionality for power management
• Utilizes 1.8V supply voltage operation

Oscillators Applications

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

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD, No Lead package dimensions provided in the official datasheet to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 15.624 MHz clock source is required for low-voltage digital systems. The choice depends on the necessity for LVCMOS signaling standards and the integration of power-down features within the design architecture. Consider the physical size constraints of the 4-SMD package relative to the available board space and the thermal environment of the final product.

Oscillators Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various frequency options within a standardized small outline package format. The 'PD' suffix indicates the inclusion of a power-down or standby control feature, distinguishing it from continuous-operation variants within the same family.

Oscillators Replacement Considerations

Direct replacements must match the 15.624 MHz frequency, 1.8V operating voltage, LVCMOS output type, and 4-SMD No Lead package. Verify pinout compatibility and electrical specifications such as phase noise and jitter if critical to the application.