18QHTF21-43.750-OE

Oscillators Overview

The 18QHTF21-43.750-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 43.75 MHz and utilizes LVCMOS output logic levels. The device is designed for low voltage operation at 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output interface
• Enable/Disable control pin
• 1.8V supply voltage operation

Oscillators Applications

• General purpose clock generation
• Digital signal processing systems
• Communication equipment timing

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply rail is stable and within the specified operating range to ensure reliable oscillator performance. Check the datasheet for thermal management guidelines related to the small SMD package.

Oscillators Selection Notes

Select this component when a 43.75 MHz clock source with LVCMOS compatibility is required. Ensure the system power budget supports the 1.8V requirement. Consider the physical dimensions of the 4-SMD package for PCB layout constraints. Verify that the enable/disable functionality aligns with system power management strategies.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which offers various frequencies and voltage options. The 18QHTF21 series typically features standard stability and low current consumption. It is distinct from TCXO or VCXO variants by lacking temperature compensation or voltage-controlled tuning capabilities.

Oscillators Replacement Considerations

Direct substitutes must match the 43.75 MHz frequency, 1.8V voltage, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical specifications such as phase noise and jitter if critical. Cross-reference with other manufacturers' equivalent parts ensuring identical form factor and functional parameters.