18QHTF21-29.4989-OE

Oscillators Overview

The 18QHTF21-29.4989-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 29.4989 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Provides stable LVCMOS clock signals for digital circuit synchronization
• Features low-voltage operation with integrated enable/disable functionality
• Utilizes a miniature surface-mount package for space-constrained designs

Oscillators Applications

• Precision timing in embedded systems
• Clock generation for microprocessors and FPGAs
• Data communication interface synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the enable pin logic levels are compatible with your controlling GPIO to prevent unintended oscillator states during operation.

Oscillators Selection Notes

Select this component when a 29.4989 MHz reference is required for LVCMOS-compatible logic families. Consider the 1.8V operating voltage and enable feature if power efficiency is critical. Evaluate the 2.0x1.6mm footprint against available PCB real estate compared to larger oscillator packages.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a standardized small outline no-lead package format, designed for high-volume consumer and industrial electronics manufacturing.

Oscillators Replacement Considerations

Direct substitutes include other 29.4989 MHz LVCMOS oscillators in 4-SMD No Lead packages with 1.8V operation. Verify pinout compatibility and electrical specifications such as phase noise and jitter before swapping manufacturers.