18QHTF21-57.692-OE

Overview

The 18QHTF21-57.692-OE is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 57.692 MHz with an LVCMOS output logic level. The device supports a supply voltage of 1.8V and includes an enable/disable control function. It features a frequency stability of ±50ppm and functions within an operating temperature range of -40°C to 85°C. The maximum supply current is 24mA. The component utilizes a 4-SMD, No Lead surface mount package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Integrated enable/disable functionality for power management
• LVCMOS output interface compatible with standard digital logic
• Compact 4-SMD no lead surface mount footprint

Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring 1.8V operation
• Embedded devices operating within industrial temperature ranges

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 PCB layout accommodates the 4-SMD no lead package dimensions to prevent mechanical stress or soldering defects during assembly.

Selection Notes

Select this component when a precise 57.692 MHz timing source is required with low power consumption constraints. The LVCMOS output is suitable for direct interfacing with CMOS-based processors or FPGAs. Consider the ±50ppm stability specification relative to the system's jitter budget and phase noise requirements for optimal performance.

Part Context

This oscillator belongs to the Mercury Electronics SMD oscillator series designed for space-constrained applications. The model number indicates a standard XO type with specific frequency coding. It is part of a broader family of surface mount oscillators offering various frequencies and supply voltages for diverse embedded market needs.

Replacement Considerations

Compatible substitutes include other 57.692 MHz LVCMOS oscillators with identical 1.8V supply and 4-SMD no lead packages. Verify pinout compatibility and thermal characteristics to ensure seamless integration without redesigning the host board.