18QHTF21-46.977848-OE

Oscillators Overview

The 18QHTF21-46.977848-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 46.977848 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes enable/disable functionality for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable control pin
• Surface-mount 4-SMD no lead package design

Oscillators Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded microcontroller timing 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 rail aligns with the system's power architecture. Ensure the PCB footprint matches the 4-SMD no lead package dimensions to prevent assembly errors during manufacturing.

Oscillators Selection Notes

Select this component when a fixed frequency source near 47 MHz is required with low power consumption. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the enable feature if dynamic power saving is necessary during idle periods in the application lifecycle.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within the same form factor. The series provides standardized timing solutions for consumer and industrial electronics. Mercury has established expertise in quartz crystal manufacturing since 1973, ensuring consistent quality in frequency control products.

Oscillators Replacement Considerations

Direct replacements must match the 46.977848 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter specifications to ensure functional equivalence in the existing circuit design.