18QHTF21-69.120-PD

Overview

The 18QHTF21-69.120-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 69.12 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports LVCMOS output interface
• Includes standby and power-down functionality
• Designed for 1.8V supply operation

Applications

• General electronic timing circuits
• Digital signal processing systems
• Communication equipment clock sources

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 dimensions fit within your PCB layout constraints. Check for any specific RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component when a 69.12 MHz clock signal is required with low-voltage compatibility. Consider the LVCMOS output level for direct interfacing with compatible digital logic families. Evaluate the power-down feature if energy efficiency during idle states is a priority. Compare package size against available board space to ensure mechanical fit.

Part Context

This part belongs to the QHTF series of quartz crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options. The 'PD' suffix likely indicates the inclusion of a power-down control pin or function. Mercury Electronics is a established manufacturer of frequency control products with a long history in the industry.

Replacement Considerations

Direct substitutes may include other 69.12 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical specifications before substitution. Consult manufacturer cross-reference lists for approved replacements.