QTM750P-155.520MBE-T

Overview

The QTM750P-155.520MBE-T is a quartz oscillator manufactured by QST, operating at a nominal frequency of 155.520 MHz. It utilizes LVPECL output format and functions with a 3.3 V supply voltage. The device features a frequency stability of 50 PPM and operates within a temperature range of -40°C to +85°C. Physical dimensions are 7.0 mm x 5.0 mm x 1.3 mm in an SMD package. Jitter performance is specified at 0.3 ps, supporting precision timing applications.

Feature Summary

• LVPECL output interface for high-speed signal integrity
• Compact surface-mount design suitable for dense PCB layouts
• Low jitter specification for precise clocking requirements

Applications

• Precision timing systems
• High-speed data communication interfaces
• Telecommunications equipment requiring stable clock sources

Procurement Notes

Verify the specific suffix 'P' against official QST documentation to confirm enable/disable functionality and exact electrical characteristics. Ensure compatibility with 3.3V logic levels and LVPECL termination requirements during integration. Cross-reference thermal specifications with system constraints.

Selection Notes

Select this component when LVPECL outputs and 155.520 MHz frequency are required. Consider the 50 PPM stability and -40°C to +85°C operating range for environmental suitability. Evaluate board space constraints against the 7x5x1.3mm footprint.

Part Context

This part belongs to the QTM750 series of quartz oscillators from QST. The series offers various frequencies and output formats. The 'P' variant typically denotes specific control features like enable/disable pins, distinguishing it from standard variants within the same physical package family.

Replacement Considerations

Direct substitutes include other 155.520 MHz LVPECL oscillators with matching 7x5x1.3mm footprints and 3.3V operation. Verify pinout compatibility and electrical parameters before substitution.