QTM532P-125.000MBE-T

Overview

The QTM532P-125.000MBE-T is a crystal oscillator manufactured by QST, designed for high-performance timing applications. It operates at a frequency of 125.000 MHz with a stability tolerance of 50 ppm. The device utilizes LVPECL output logic and requires a 3.3V supply voltage. It is housed in a compact 5.0x3.2 mm surface-mount package, suitable for space-constrained electronic designs requiring precise clock signals.

Feature Summary

• Provides clean sine wave output optimized for CMOS inputs
• Ensures stable timing performance with 50 ppm frequency tolerance
• Features low-noise operation suitable for sensitive digital circuits

Applications

• Compatible with modern MCUs including ARM Cortex-M series
• High-speed data communication interfaces
• Precision timing systems in embedded electronics

Procurement Notes

Verify the specific output logic level (LVPECL) and supply voltage requirements against system design specifications before procurement. Confirm that the 5.0x3.2 mm footprint matches the PCB layout constraints. Ensure compatibility with the target MCU input thresholds to guarantee reliable signal integrity during operation.

Selection Notes

Select this component when a 125 MHz clock signal with LVPECL output is required for high-speed digital processing. Consider the 50 ppm stability requirement for applications needing moderate precision. Evaluate the 3.3V operating voltage against available power rails. Compare physical dimensions against alternative packages if board space is limited.

Part Context

This oscillator belongs to the QTM532P series from QST, which offers various frequencies and output types. Similar models include QTM532P-25.000MBE-T and QTM532P-156.250MBE-T, differing primarily in frequency and potentially output configuration. The series is characterized by compact packaging and reliable performance for consumer and industrial electronics.

Replacement Considerations

Direct substitutes may include other QST oscillators within the same package family with compatible electrical parameters. Verify pinout compatibility and output logic levels when considering alternatives from different manufacturers. Ensure replacement parts meet the same 50 ppm stability and 3.3V supply requirements.