18QHTF21-22.576649-PD

Oscillators Overview

The 18QHTF21-22.576649-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 22.576649 MHz with LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

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

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your specific circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 22.576649 MHz clock source is required for low-voltage digital applications. The choice is driven by the need for a small form factor and power efficiency features like standby mode. Consider the LVCMOS compatibility with your downstream logic family to ensure signal integrity without additional level shifting components.

Oscillators Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of standard crystal oscillators. The series offers various frequencies within a consistent 2.0x1.6mm package. Mercury Electronics has a long history in quartz crystal manufacturing, providing reliable frequency control solutions for industrial and consumer electronics markets globally.

Oscillators Replacement Considerations

Direct replacements must match the 22.576649 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications from alternative manufacturers to ensure seamless integration without redesigning the host circuit board.