18QHTF21-49.4233-OE

Overview

The 18QHTF21-49.4233-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 49.4233 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 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.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Features integrated enable and disable control functionality
• Utilizes a hermetic ceramic leadless SMD package design

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system power rails. Confirm that the 4-SMD no lead package dimensions fit within your PCB footprint constraints. Check for any specific handling instructions related to the ceramic package construction.

Selection Notes

Select this component when a stable 49.4233 MHz reference is required with low power consumption. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the enable pin feature if power management or clock gating is necessary for the application. The small form factor makes it appropriate for space-constrained designs.

Part Context

This part belongs to the QHTF series from Mercury Electronic, which offers various frequencies ranging from 1.0 MHz to 200 MHz. The series provides multiple supply voltages and package options. Mercury Electronic is a Taiwan-based manufacturer specializing in quartz crystals and oscillators since 1973, known for producing frequency control products including TCXOs and VCTCXOs.

Replacement Considerations

Direct substitutes include other 49.4233 MHz LVCMOS oscillators in 4-SMD packages from Mercury Electronic, such as the 18QHTF21-50.350-OE family members if frequency adjustment is acceptable. Verify pinout compatibility and electrical specifications before substitution.

FAQ

What is the output logic type of the 18QHTF21-49.4233-OE?

The output logic type is LVCMOS (Low Voltage Complementary Metal-Oxide-Semiconductor).

Does this oscillator have a control pin?

Yes, the device features an enable and disable control function.