QTM532-14.31818MBB-T

Overview

The QTM532-14.31818MBB-T is a surface-mount crystal oscillator manufactured by QST, operating at a standard frequency of 14.31818 MHz. It features a CMOS output type and supports supply voltages including 1.8V, 2.5V, 3.3V, and 5.0V. The device exhibits a frequency stability of ±50 ppm and an aging rate of ±3 ppm per year. Designed for robust performance, it operates within a temperature range of -40°C to +85°C. The physical package dimensions are 5mm x 3.2mm, with a maximum height of 1.2mm. Maximum supply current consumption is specified at 20mA.

Feature Summary

• Surface mount construction for automated PCB assembly
• CMOS logic output interface compatibility
• Wide supply voltage flexibility across multiple standards
• Industrial grade thermal stability range

Applications

• Embedded system clock generation
• Communication module timing references
• Microcontroller peripheral synchronization
• Consumer electronics internal timing

Procurement Notes

Verify the specific suffix 'BB' against the manufacturer's official datasheet to confirm pinout configuration and enable/disable functionality requirements. Ensure the selected supply voltage aligns with the component's operational limits to prevent performance degradation. Confirm that the load capacitance specifications match the target circuit design for accurate frequency stability.

Selection Notes

Select this component when a precise 14.31818 MHz reference is required for digital logic interfaces. Consider the ±50 ppm stability for general timing applications rather than high-precision RF systems. Evaluate the 5x3.2mm footprint against available board space constraints. Verify that the CMOS output swing matches the input thresholds of the receiving logic family.

Part Context

This part belongs to the QTM532 series of quartz crystal oscillators from QST. The series offers various frequencies and package sizes tailored for compact electronic designs. Similar models in the lineup include variants with different frequencies such as 32.768 kHz or 50 MHz, maintaining consistent form factors and electrical characteristics for modular design approaches.

Replacement Considerations

Direct substitutes may include other manufacturers offering 14.31818 MHz CMOS oscillators in 5x3.2mm packages. Verify equivalent frequency stability (±50 ppm) and supply voltage ranges before substitution. Cross-reference pin assignments and enable functions to ensure circuit compatibility without redesign.