18QHTF21-75.635-PD

Overview

The 18QHTF21-75.635-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd, operating at a nominal frequency of 75.635 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The component features a power-down capability for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes power-down functionality to reduce current consumption during standby
• Designed as a standard XO for precise clock signal generation

Applications

• General purpose clock signal generation in electronic circuits
• Embedded systems requiring low-voltage timing references
• Portable devices utilizing compact surface-mount oscillators

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Cross-reference the datasheet for thermal and electrical specifications relevant to your operating environment.

Selection Notes

Select this component when a 75.635 MHz clock source is required with LVCMOS outputs. Consider the 1.8V operating voltage and power-down feature for energy efficiency. Evaluate the 2.0x1.6mm package size for space-constrained applications. Compare against other Mercury Electronics series if different frequencies or voltages are needed.

Part Context

This part belongs to the Mercury Electronics SMD oscillator family, specifically designed for high-frequency stability in small form factors. The 'PD' suffix indicates the inclusion of a power-down pin or function. Mercury Electronics specializes in quartz crystals and oscillators, providing reliable frequency control solutions for various industrial and consumer electronics markets.

Replacement Considerations

Direct substitutes may include other 75.635 MHz LVCMOS oscillators from different manufacturers, provided they match the 1.8V supply, 4-SMD package, and pinout configuration. Verify equivalent performance metrics such as phase noise and stability before substitution.