18QHTF21-65.480-PD

Overview

The 18QHTF21-65.480-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 65.48 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6 mm. This component is designed for applications requiring precise timing signals within low-voltage digital systems.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Low voltage digital circuit timing
• Portable electronic devices requiring power management

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Ensure that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Confirm that the PCB footprint matches the 2.0x1.6 mm package dimensions to ensure proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this oscillator when a 65.48 MHz reference is required with LVCMOS outputs. Consider the 1.8V operating voltage constraint and the need for power-down capabilities. Evaluate the thermal performance and frequency stability needs against the standard specifications provided in the manufacturer documentation to ensure suitability for the intended application environment.

Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and voltage levels. The 'PD' suffix indicates the inclusion of a power-down pin or feature. This specific model provides a fixed frequency solution for timing applications where space constraints and low power consumption are critical design factors.

Replacement Considerations

Direct replacements must match the 65.48 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter before substitution.