LFSPXO018538

Overview

The LFSPXO018538 is a standard surface-mount clock oscillator manufactured by IQD Frequency Products. It operates at a nominal frequency of 14.31818 MHz with an HCMOS output format. The device features a frequency stability of ±50 ppm and functions within a supply voltage range of 2.7V to 3.63V, typically nominally rated at 3.3V. It utilizes a 4-SMD package measuring 7.0mm x 5.0mm x 1.4mm. The component supports an operating temperature range of 0°C to +70°C and includes enable/disable functionality for power management.

Feature Summary

• Features a fully sealed ceramic body with welded metal cover providing a hermetic structure for environmental protection
• Includes integrated enable and disable control pins allowing for active power management and low standby current consumption
• Outputs HCMOS logic levels compatible with standard digital interfaces without requiring external level shifting

Applications

• Providing reference clocks for legacy communication protocols such as UART and SPI
• Serving as timing sources for audio/video synchronization systems
• Powering general-purpose ADC sampling circuits in industrial monitoring equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and tolerance specifications. Confirm that the required load capacitance matches the design schematic, as performance parameters are defined under specific loading conditions. Ensure the selected variant meets the thermal requirements of the target application environment.

Selection Notes

Select this component when a precise 14.31818 MHz reference is required for legacy protocol compatibility or video timing. Consider the ±50 ppm stability sufficient for standard baud rates and moderate-speed data acquisition. Evaluate the 0-70°C operating range against environmental constraints; wider temperature variants exist if extreme cold or heat exposure is anticipated.

Part Context

This part belongs to the CFPS-73 series of standard surface-mount oscillators from IQD Frequency Products. The series offers various frequencies and packages, utilizing quartz crystal technology for stable timing. IQD is a subsidiary of Wurth Elektronik, known for producing frequency control components for industrial and consumer electronics markets.

Replacement Considerations

Cross-reference with other 14.31818 MHz HCMOS oscillators in the 7x5mm package. Verify pinout compatibility and electrical characteristics before substitution. Check for equivalent models within the same IQD family or alternative manufacturers offering similar stability and voltage ratings.