18QHTF21-28.224-PD

Oscillators Overview

The 18QHTF21-28.224-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 28.224 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down capability for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Integrates standby mode to reduce power consumption during idle states
• Utilizes a leadless surface-mount package for automated assembly

Oscillators Applications

• General clock signal generation in embedded systems
• Timing reference for low-voltage digital circuits
• Consumer electronics requiring compact timing solutions

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Ensure that the 1.8V supply rail stability meets the oscillator's operational specifications. Confirm that the PCB footprint matches the 4-SMD no-lead package dimensions to prevent soldering defects during assembly.

Oscillators Selection Notes

Select this component when a precise 28.224 MHz timing source is required for LVCMOS-compatible devices. Consider the 1.8V operating voltage constraint and the availability of standby functionality for power-sensitive designs. Evaluate the small form factor suitability for space-constrained printed circuit board layouts compared to larger oscillator packages.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies within a standard range, sharing common electrical characteristics such as LVCMOS outputs and low-profile packaging. The suffix PD indicates the inclusion of power-down control features.

Oscillators Replacement Considerations

Direct substitutes must match the 28.224 MHz frequency, LVCMOS output type, 1.8V supply voltage, and 4-SMD no-lead package dimensions. Verify pinout compatibility and thermal performance characteristics to ensure seamless integration without redesigning the host circuit board.