QTM750-1.544MBA-T

Overview

The QTM750-1.544MBA-T is a standard CMOS quartz oscillator manufactured by QST, operating at a frequency of 1.544 MHz. It features a 3.3V supply voltage and utilizes a 4-SMD, no-lead package with dimensions of 7.00mm x 5.00mm. The device supports enable/disable functionality and is designed for applications requiring precise timing signals within digital systems.

Feature Summary

• CMOS output format for direct interfacing with digital logic circuits
• Integrated enable/disable control capability for power management
• Compact surface-mount design suitable for space-constrained PCB layouts

Applications

• Digital communication systems requiring 1.544 MHz clock references
• Telecommunications equipment utilizing T1 line timing standards
• Embedded systems needing stable low-frequency clock sources

Procurement Notes

Verify the specific ordering suffix to confirm voltage and stability parameters. Ensure compatibility with 3.3V logic levels. Confirm package type matches the 4-SMD no-lead specification. Check RoHS compliance status if required for your manufacturing process. Validate frequency accuracy against system requirements before procurement.

Selection Notes

Select this component when a 1.544 MHz CMOS clock signal is required in a compact form factor. Consider the 3.3V operating voltage for compatibility with modern digital circuits. Evaluate the enable/disable feature if power efficiency during idle states is critical. Compare size constraints against the 7.00mm x 5.00mm footprint.

Part Context

This part belongs to the QTM750 series of standard oscillators from QST. The series offers various frequencies and voltage options. The QTM750 model line provides reliable timing solutions for consumer electronics and industrial applications. It represents a standardized approach to crystal oscillator integration.

Replacement Considerations

QTM750-1.544MBE-T: Different voltage option (2.5V). QTM750-1.544MBA: Same frequency and voltage, verify suffix implications. QTS750C-19.440MBO-T: Different family (TCXO), not a direct substitute.