18QHTF21-75.650-OE

Overview

The 18QHTF21-75.650-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 75.65 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise clock signals.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable functionality for power management
• Standard crystal oscillator design with high frequency stability

Applications

• General purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Procurement Notes

Verify the exact datasheet specifications from the manufacturer before integration. Confirm that the 1.8V supply voltage and LVCMOS output levels match the target circuit requirements. Ensure the 4-SMD No Lead package footprint aligns with the PCB layout to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a stable 75.65 MHz clock source is required with low voltage operation. The enable/disable feature allows for dynamic power control in battery-operated devices. Consider the small form factor for space-constrained designs. Verify temperature range and load capacitance requirements against the specific application environment to ensure reliable performance.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a standardized package. The 'OE' suffix likely denotes a specific ordering or packaging variant, though functional characteristics remain consistent with the base model specifications provided in official documentation.

Replacement Considerations

Direct substitutes must match the 75.65 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Check pinout compatibility and electrical parameters such as phase noise and jitter if critical. Generic replacements may require verification of enable/disable logic polarity and drive strength.