18QHTF21-59.780-OE

Overview

The 18QHTF21-59.780-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 59.78 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable functionality for power control
• Compact 4-SMD no-lead surface mount package

Applications

• General clock signal generation in electronic circuits
• Data communication interfaces requiring precise timing
• Embedded systems with low-voltage logic requirements

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a fixed 59.78 MHz clock source is required with LVCMOS outputs. The 1.8V operating voltage makes it suitable for modern low-power digital designs. The enable pin allows for dynamic power management, which is beneficial for battery-operated or energy-efficient applications requiring periodic clock activation.

Part Context

This part belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronics. The series offers various frequencies within the LVCMOS logic family. The suffix -OE typically denotes specific packaging or tape-and-reel options, though exact details require datasheet confirmation. The series supports 1.8V operation and includes enable controls.

Replacement Considerations

Direct substitutes must match the 59.78 MHz frequency, LVCMOS output type, 1.8V supply voltage, and 4-SMD package dimensions. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if specified in the original design requirements.