18QHTF21-13.5485-OE

Overview

The 18QHTF21-13.5485-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 13.5485 MHz and utilizes LVCMOS output logic. The component supports a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Feature Summary

• Integrated enable/disable functionality for power management
• Compact surface-mount design suitable for space-constrained applications
• LVCMOS output compatibility for digital interfaces

Applications

• Portable electronic devices requiring low-power clock sources
• Embedded systems utilizing LVCMOS logic families
• Consumer electronics with strict size limitations

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail stability meets the oscillator's jitter specifications. Confirm that the 4-SMD no-lead package footprint aligns with your PCB layout guidelines to avoid soldering defects during assembly.

Selection Notes

Select this model when a precise 13.5485 MHz reference is required alongside active power control capabilities. The 1.8V operation makes it suitable for modern low-voltage digital circuits. Consider the 2.0x1.6mm footprint constraints relative to other available oscillator packages in the same series to ensure mechanical fit within the target enclosure.

Part Context

This part belongs to the QHTF series of quartz crystal oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages. The '18' prefix indicates the 1.8V supply variant, while '21' denotes the specific package type. This component represents a standard XO solution rather than a temperature-compensated or voltage-controlled variant.

Replacement Considerations

Direct substitutes include the 18QHTF21-13.1313-OE for different frequency needs within the same package and voltage class. Other compatible options may exist within the Mercury QHTF series sharing identical pinouts and electrical characteristics.