QTM750-133.330MBB-T

Overview

The QTM750-133.330MBB-T is a quartz crystal oscillator manufactured by QST, operating at a nominal frequency of 133.33 MHz with CMOS output levels. It features a standard frequency stability of ±50 ppm and functions within an operating temperature range of -10°C to 70°C. The device requires a maximum supply current of 10 mA and supports a 3.3 V supply voltage. It utilizes a surface-mount package configuration in a 4-SMD, no-lead form factor.

Feature Summary

• CMOS output signal generation for digital logic interfacing
• Integrated enable/disable control via logic pin input
• Surface-mount design for automated PCB assembly

Applications

• Digital clock distribution systems
• Data communication interface timing
• Embedded processor clock sources

Procurement Notes

Verify the specific suffix 'BB' against official QST documentation to confirm the exact temperature grade and enable pin configuration. Ensure the required operating environment falls within the specified -10°C to 70°C range. Confirm that the 3.3V supply voltage aligns with the target system power rails before procurement.

Selection Notes

Select this component when a precise 133.33 MHz reference is required for CMOS-compatible circuits. Consider the ±50 ppm stability requirement against system jitter tolerance. Evaluate the thermal constraints of the application to ensure they remain within the industrial-grade temperature limits defined for this specific variant.

Part Context

This part belongs to the QTM750 series of surface-mount oscillators from QST. The series offers various frequency options and stability grades. This specific model provides a high-frequency solution suitable for modern high-speed digital applications requiring stable clock signals in compact electronic designs.

Replacement Considerations

The TXC 7W-133.330MBB-T is listed as obsolete with the QTM750-133.330MBB-T identified as a parametric equivalent substitute. Verify pinout compatibility and electrical specifications before substitution.