18QHTF21-43.7656-OE

Oscillators Overview

The 18QHTF21-43.7656-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 43.7656 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0mm x 1.6mm. The component is RoHS compliant and designed for surface-mount applications.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable functionality
• RoHS compliant construction

Oscillators Applications

• General purpose clock generation
• Digital signal processing timing
• Embedded system clock sources

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 voltage aligns with the system power rails. Ensure the 4-SMD footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.

Oscillators Selection Notes

Select this component when a precise 43.7656 MHz clock source is required for low-voltage digital circuits. The LVCMOS output ensures direct interfacing with compatible logic families without additional level shifting. Consider the small form factor for space-constrained designs requiring reliable timing signals with minimal power consumption.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based timing solutions. The manufacturer has extensive experience in producing frequency control products, including crystals and oscillators. This series represents their standard XO offerings designed for modern electronic applications requiring stable frequency references.

Oscillators Replacement Considerations

Direct substitutes include other 43.7656 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical parameters such as phase noise and jitter when considering alternative manufacturers. Ensure the replacement supports the same enable/disable control scheme if utilized in the design.