QTM252J-24.576MBJ-T

Overview

The QTM252J-24.576MBJ-T is a standard CMOS quartz oscillator manufactured by TXC Corporation, distributed under the QST brand identifier in certain channels. It operates at a nominal frequency of 24.576 MHz with a frequency stability of ±50 ppm. The device utilizes a ceramic resonator and functions within an operating temperature range of -40°C to +105°C. It requires a supply voltage of 3.3V and draws a maximum current of 22 mA. The component is housed in a compact 4-SMD, no-lead package measuring 2.50 mm x 2.00 mm, designed for surface mount applications.

Feature Summary

• Features low jitter and phase noise characteristics suitable for precision timing applications.
• Includes enable/disable functionality for power management control.
• Utilizes a ceramic quartz resonator for stable oscillation.

Applications

• Digital signal processing systems requiring precise clock synchronization
• Communication equipment utilizing CMOS interface standards
• Embedded systems operating within industrial temperature ranges

Procurement Notes

Verify the manufacturer designation carefully, as this component is produced by TXC Corporation but may be listed under QST identifiers in distributor catalogs. Confirm the specific suffix 'MBJ' corresponds to the 3.3V supply voltage variant, as other suffixes indicate different voltages such as 1.8V or 2.5V. Ensure the order quantity aligns with the standard factory packaging requirements specified by the supplier.

Selection Notes

Select this model when a 24.576 MHz clock source is required with a 3.3V logic interface. The ±50 ppm stability meets general timing needs, while the -40°C to +105°C range supports industrial environments. Consider the 2.50 mm x 2.00 mm footprint for space-constrained PCB layouts. Verify that the CMOS output format matches the receiving circuit's input requirements before integration.

Part Context

This oscillator belongs to the QTM252J series, which encompasses various frequency and voltage variants. The series is characterized by small form factors and CMOS outputs. Other models in this family include variants with 1.8V or 2.5V supplies and different frequency options, all sharing similar physical dimensions and low jitter performance profiles defined by the manufacturer.

Replacement Considerations

Direct substitutes within the same series include QTM252J-24.576MDJ-T (1.8V) and QTM252J-24.576MCJ-T (2.5V), provided the system voltage can be adjusted. Cross-brand replacements must match the 24.576 MHz frequency, 3.3V supply, 2.5x2.0mm package, and CMOS output type to ensure functional compatibility.