18QHTF21-75.488-PD

Overview

The 18QHTF21-75.488-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a frequency of 75.488 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 2.5V and features a standby power-down mode for energy efficiency. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation with 2.5V supply requirement
• Includes standby power-down functionality to reduce consumption
• Provides LVCMOS output logic for digital interface compatibility

Applications

• General clock generation for digital circuits
• Timing reference for communication interfaces
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 2.5V supply rail stability meets the oscillator specifications. Confirm that the 4-SMD no-lead package dimensions align with your PCB footprint constraints. Cross-reference the part number suffix to ensure the correct variant is ordered.

Selection Notes

Select this component when a 75.488 MHz clock signal is required with LVCMOS compatibility. Consider the 2.5V operating voltage constraint during power budgeting. Evaluate the need for standby mode support if power management is critical. Compare package size against available board space. Verify temperature range suitability for the intended environment.

Part Context

This model belongs to the QHTF series of crystal oscillators from Mercury Electronic Ind. Co. Ltd. The series offers various frequencies and voltage options. Mercury Electronics specializes in quartz crystals and oscillators, providing timing solutions for electronic devices. This specific part represents a standard XO configuration within their product line.

Replacement Considerations

Direct substitutes may include other 75.488 MHz LVCMOS oscillators with identical 2.5V supply and 4-SMD no-lead packaging. Verify pinout compatibility and electrical parameters such as jitter and phase noise before substitution. Check manufacturer datasheets for equivalent performance metrics.