18QHTF21-78.598-OE

Overview

The 18QHTF21-78.598-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 78.598 MHz and utilizes LVCMOS output logic levels. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output interface
• Enable/Disable control functionality
• Standard XO configuration

Applications

• Digital signal processing systems
• Communication equipment timing
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD No Lead package dimensions fit within the designated PCB footprint constraints to avoid assembly issues.

Selection Notes

Select this component when a stable 78.598 MHz reference is required with low-voltage operation. The LVCMOS output ensures compatibility with standard digital logic families. Consider the enable pin utility for power-sensitive designs where dynamic clock gating is necessary to reduce overall system consumption during idle periods.

Part Context

Mercury Electronic Ind. Co., Ltd. has over 50 years of experience manufacturing frequency control products, including quartz crystals and oscillators. As a pioneer in Taiwan's crystal industry, the company produces various oscillator types such as TCXO, VCTCXO, and VCXO, establishing a long history in precision timing solutions since 1973.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Users should consult the manufacturer directly for cross-reference information or equivalent alternatives if this specific model becomes unavailable.