QTM532-74.250MCA-T

Overview

The QTM532-74.250MCA-T is a standard clock oscillator manufactured by QST, utilizing a quartz crystal resonator with CMOS output signaling. It operates at a nominal frequency of 74.25 MHz and requires a 2.5V supply voltage. The device provides a frequency stability of ±25 ppm and features low phase jitter characteristics suitable for high-speed digital applications. Designed for surface-mount assembly, it occupies a compact 5.0x3.2 mm footprint with a maximum seated height of 1.40 mm. The component supports an operating temperature range from -40°C to +85°C, ensuring reliable performance in industrial environments.

Feature Summary

• CMOS output interface for direct logic compatibility
• Quartz crystal base resonator for precise timing
• Compact 5.0x3.2 mm surface mount package

Applications

• DSP controller motor control systems
• Real-time system clock generation
• High-speed digital signal processing interfaces

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration when placing orders. Confirm that the 2.5V supply requirement aligns with target circuit design specifications. Ensure the ±25 ppm stability meets system timing tolerance requirements. Check for RoHS compliance status prior to final procurement approval.

Selection Notes

Select this component when a 74.25 MHz reference is required for video or data transmission standards. The CMOS output simplifies interfacing compared to LVPECL variants. Consider the 2.5V supply constraint against available board power rails. The wide temperature range supports deployment in varied environmental conditions without derating.

Part Context

This part belongs to the QTM532 series of standard oscillators produced by QST. The series offers various frequencies and output types within the same mechanical envelope. The QTM532 designation identifies the specific form factor and electrical characteristics defined by the manufacturer's product line.

Replacement Considerations

Cross-reference with QTM532-74.250MCE-T if 2.5V operation is confirmed but different stability is needed. Verify pinout compatibility before substituting with other manufacturers' 5.0x3.2mm CMOS oscillators.