18QHTF21-49.410-OE

Overview

The 18QHTF21-49.410-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 49.41 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Provides stable 49.41 MHz clock signal generation
• Integrates LVCMOS output interface for digital compatibility
• Features low-voltage operation with enable/disable capability

Applications

• General-purpose digital circuit timing
• Embedded system clock sources
• Consumer electronics timing references

Procurement Notes

Verify the exact operating temperature range and load capacitance requirements against your specific design constraints before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm that the enable/disable pin functionality is utilized correctly in your schematic to manage power consumption effectively during idle states.

Selection Notes

Select this component when a fixed 49.41 MHz frequency is required with low power consumption capabilities. The LVCMOS output is suitable for standard digital logic families. Consider the 4-SMD package size for space-constrained designs. Ensure the 1.8V supply voltage matches your system architecture before finalizing the selection.

Part Context

This oscillator belongs to Mercury Electronics' standard XO series, designed for general timing applications. The manufacturer specializes in quartz crystals and oscillators, offering various frequency options within the same package family. This specific model provides a common frequency point for digital systems requiring precise synchronization without the need for external tuning components.

Replacement Considerations

Direct substitutes include other 49.41 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Verify electrical parameters such as supply voltage, output swing, and current consumption to ensure functional equivalence. Check mechanical dimensions and pinout compatibility to guarantee proper board integration.