18QHTF21-83.3333-OE

Overview

The 18QHTF21-83.3333-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 83.3333 MHz and utilizes LVCMOS output logic levels. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 3.2mm x 2.5mm. The component is designed for high-performance applications requiring precise clock signals.

Feature Summary

• Supports enable/disable functionality for dynamic power control
• Utilizes LVCMOS output logic for digital interface compatibility
• Features a leadless SMD package for surface-mount assembly

Applications

• High-performance digital signal processing systems
• Communication equipment requiring precise timing
• Embedded systems with low-voltage power constraints

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead footprint matches your PCB layout specifications. Check for any RoHS compliance documentation if required by your manufacturing standards. Validate the operating temperature range suitability for your intended environment.

Selection Notes

Select this component when a stable 83.3333 MHz clock source is required in space-constrained designs. The LVCMOS output ensures direct interfacing with standard digital logic without additional level shifting. The enable pin allows for efficient power management in battery-operated or energy-sensitive applications. Consider the 1.8V operation if your system architecture relies on low-voltage power domains.

Part Context

This part belongs to Mercury's QuikXO series, which focuses on fast-delivery CMOS output clock oscillators. The series offers both standard and custom frequencies built to order. Mercury Electronics has been a pioneer in the crystal industry since 1973, providing frequency control products. The 18QHTF21 series represents their standard XO offerings with integrated enable capabilities.

Replacement Considerations

Direct substitutes may include other 83.3333 MHz LVCMOS oscillators in similar packages from different manufacturers. Verify pinout compatibility and electrical characteristics such as phase noise and jitter. Ensure the replacement supports the same 1.8V supply and enable/disable functionality. Cross-reference mechanical dimensions to confirm PCB footprint compatibility.