18QHTF21-70.01875-OE

Overview

The 18QHTF21-70.01875-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 70.01875 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature. It is housed in a compact 4-SMD, No Lead package. The component is designed for reliable performance within specified operating temperature ranges typical for industrial-grade electronic applications.

Feature Summary

• Integrates enable and disable functionality for power management
• Utilizes LVCMOS output logic for digital interface compatibility
• Employes a surface-mount 4-SMD no lead package design

Applications

• Digital signal processing systems requiring precise clock timing
• Communication equipment utilizing standard frequency references
• Embedded systems with low voltage logic requirements

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 enable pin logic levels are compatible with your microcontroller or driver outputs to prevent unintended state changes during operation.

Selection Notes

Select this component when a fixed frequency of 70.01875 MHz is required with low voltage operation. Consider the 4-SMD package size constraints for PCB layout. Evaluate the need for active control via the enable pin versus continuous operation. Compare specifications against alternative oscillators if tighter jitter or phase noise performance is necessary for the application.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various standard frequency options. The series typically features LVCMOS outputs and support for enable controls. Other variants in this family include different frequencies such as 86.8875 MHz and 13.396875 MHz, sharing similar package and voltage characteristics.

Replacement Considerations

Direct substitutes may include other 18QHTF21 series parts with identical frequency ratings. Verify cross-compatibility with equivalent models from Mercury United Electronics or other manufacturers offering 70.01875 MHz LVCMOS oscillators in 4-SMD packages. Ensure electrical parameters match exactly before substitution.