18QHTF21-44.822222-PD

Oscillators Overview

The 18QHTF21-44.822222-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 44.822222 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function to manage energy consumption during inactive periods. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm. This component serves as a precise clock source for digital circuits requiring low-voltage operation and minimal footprint.

Oscillators Feature Summary

• Integrates LVCMOS output logic for direct interfacing with digital systems
• Supports standby mode to reduce power consumption when not in use
• Utilizes a leadless SMD package for surface-mount assembly

Oscillators Applications

• Clock generation for high-density digital signal processing units
• Timing reference for portable consumer electronics
• System clock source for communication interface modules

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail is stable within the operational limits defined in the official datasheet. Ensure the PCB layout accommodates the 4-SMD no-lead package dimensions to prevent mechanical stress or soldering defects during assembly.

Oscillators Selection Notes

Select this component when a precise 44.822222 MHz clock signal is required for LVCMOS-compatible logic families. The choice is driven by the need for a low-profile 2.0x1.6mm form factor and integrated power management via the standby pin. Consider the operating temperature range and phase noise specifications if the application involves sensitive timing synchronization or high-speed data transmission.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series offers various frequencies tailored for different digital applications. As a pioneer in Taiwan's quartz industry, Mercury provides components that balance performance with compact packaging standards suitable for modern electronic manufacturing trends.

Oscillators Replacement Considerations

Direct substitutes must match the 44.822222 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify compatibility with existing firmware or hardware timing constraints before swapping manufacturers.