18QHTF21-46.977848-PD

Oscillators Overview

The 18QHTF21-46.977848-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 46.977848 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down capability for energy management. 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 logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded system timing references

Oscillators Procurement Notes

Verify the specific operating temperature range 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 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 46.977848 MHz reference is required with low power consumption capabilities. The LVCMOS output ensures compatibility with standard digital logic families. Consider the 1.8V supply constraint and the availability of standby modes for power-sensitive designs. Verify environmental ratings if operation exceeds standard commercial temperature ranges.

Oscillators Part Context

This part belongs to the QHTF series of crystal oscillators from Mercury Electronics, designed for general-purpose timing applications. The series offers various frequencies and voltage options within a small form factor. The 'PD' suffix indicates the inclusion of power-down control features, distinguishing it from basic continuous-operation variants in the same package family.

Oscillators Replacement Considerations

Direct replacements must match the 46.977848 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and electrical characteristics such as jitter and phase noise against the original specification sheet to ensure functional equivalence in the target application.