QTM252J-4.000MDJ-T

Overview

The QTM252J-4.000MDJ-T is a standard clock oscillator manufactured by TXC Corporation under the QST brand, designed for precision timing applications. It utilizes a CMOS output interface and operates at a nominal frequency of 4.000 MHz. The device is powered by a single 1.8V supply voltage and features an enable/disable function for power management. It offers a frequency stability of ±50 ppm across an operating temperature range of -40°C to +105°C. The component is housed in a compact 2.5x2.0 mm surface-mount package with no leads, suitable for space-constrained electronic designs.

Feature Summary

• Features low jitter and phase noise characteristics for high-performance signal integrity.
• Incorporates an enable/disable control pin to manage power consumption effectively.
• Utilizes a ceramic quartz resonator element for stable oscillation.

Applications

• Precision timing circuits requiring stable clock signals
• Embedded systems with limited power budgets
• Consumer electronics utilizing compact form factors

Procurement Notes

Verify that the specific suffix MDJ corresponds to the required 1.8V supply and -40 to +105°C temperature range specifications. Confirm the manufacturer designation as TXC Corporation or QST Products, LLC, depending on the supply chain source. Ensure the ordering quantity aligns with the factory packaging requirements specified in the official documentation before finalizing procurement orders.

Selection Notes

Select this model when a 4.000 MHz clock signal is required with strict size constraints due to its 2.5x2.0 mm footprint. Choose this variant over other supply voltages if the system design strictly mandates a 1.8V logic level. Consider the enable/disable functionality if dynamic power management is a critical requirement for the target application environment.

Part Context

This component belongs to the QTM252 series of standard oscillators from TXC Corporation. The series includes variants with different supply voltages (1.8V, 2.5V, 3.3V) and temperature ranges. The J suffix typically denotes the extended industrial temperature range capability, distinguishing it from commercial grade options within the same physical package family.

Replacement Considerations

Direct substitutes include QTM252J-4.000MBJ-T (3.3V) and QTM252E-4.000MCJ-T (2.5V), provided voltage levels are adjusted. Verify pin compatibility and electrical parameters against the original datasheet before substitution.

FAQ

What is the supply voltage for the QTM252J-4.000MDJ-T?

The device operates at a supply voltage of 1.8V.

Does this oscillator support power control?

Yes, the component includes an enable/disable function to control operation.