QTM532-125.000MDE-T

Overview

The QTM532-125.000MDE-T is a standard clock oscillator manufactured by QST, designed for surface-mount applications in a 4-SMD, No Lead package with dimensions of 5.0mm x 3.2mm. It operates at a nominal frequency of 125 MHz and utilizes CMOS output logic. The device requires a supply voltage of 1.8V and features an enable/disable function for power management. Frequency stability is specified at ±50ppm over the operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated enable and disable control functionality
• CMOS output signal compatibility
• Surface-mount design for automated assembly

Applications

• High-speed digital signal processing systems
• Communication equipment requiring precise timing
• Embedded computing modules

Procurement Notes

Verify that the target circuit supports 1.8V logic levels and current consumption requirements. Confirm physical footprint compatibility with the 5.0x3.2mm SMD land pattern. Ensure thermal management aligns with the -40°C to +85°C operational range. Validate signal integrity for 125MHz CMOS outputs on the PCB layout.

Selection Notes

Select this component when a 125MHz reference is required with low voltage operation. Compare against alternatives if higher frequency stability or different supply voltages are needed. Consider the enable pin utility for system power sequencing. Evaluate package size constraints against other available oscillator footprints.

Part Context

This part belongs to the QTM532 series of quartz oscillators from QST. The series offers various frequencies and packages. This specific model provides a 125MHz output suitable for high-performance digital interfaces. It represents a compact solution for timing applications in space-constrained electronic designs.

Replacement Considerations

Direct substitutes include other 125MHz CMOS oscillators in 5.0x3.2mm packages with 1.8V supply and ±50ppm stability. Verify pinout compatibility and electrical specifications before substitution.