18QHTF21-19.980-OE

Oscillators Overview

The 18QHTF21-19.980-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 19.98 MHz and utilizes LVCMOS output logic levels. The device supports an enable/disable control function via a dedicated pin, allowing for power management in active circuits. It is designed to operate with a supply voltage of 1.8V. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for space-constrained surface-mount applications.

Oscillators Feature Summary

• Supports enable/disable functionality for power optimization
• Utilizes LVCMOS output interface for digital compatibility
• Compact 4-SMD no-lead package design

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Digital signal processing systems
• Communication equipment utilizing standard clock signals

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm that the enable/disable pin logic levels are compatible with your controlling microcontroller or FPGA outputs to prevent unintended state changes during operation.

Oscillators Selection Notes

Select this component when a precise 19.98 MHz clock source is required in a minimal footprint. The 1.8V operating voltage makes it suitable for modern low-voltage digital logic families. Consider the enable feature if power conservation is critical for battery-operated or standby-mode applications within the target electronic system.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronic, which specializes in quartz crystal frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry. This series typically offers standard XO configurations with various frequency options and package sizes to meet diverse industrial and consumer electronics needs.

Oscillators Replacement Considerations

Direct substitutes include other 19.98 MHz LVCMOS oscillators in 2.0x1.6mm packages with 1.8V operation and enable pins. Verify electrical parameters such as jitter, phase noise, and load capacitance match the original specification to ensure system stability.