18QHTF21-11.228-OE

Overview

The 18QHTF21-11.228-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 11.228 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Applications

• General timing circuits requiring precise clock signals
• Embedded systems with low-voltage logic levels
• Consumer electronics utilizing surface-mount technology

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target system design before procurement. Confirm that the 1.8V supply voltage aligns with the host board's power rails. Ensure the enable/disable pin configuration matches the system's power management strategy. Cross-reference the package dimensions with the PCB footprint to guarantee mechanical fit.

Selection Notes

Select this component when a stable 11.228 MHz reference is required for LVCMOS-compatible digital circuits. The choice is driven by the need for a low-profile surface-mount solution with integrated power control capabilities. Consider the operating temperature range and phase noise specifications if the application involves sensitive signal processing or high-speed data transmission interfaces.

Part Context

This part belongs to the QHTF series of standard oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages. The '18' prefix indicates the 1.8V supply variant, while 'OE' denotes the enable/disable feature. This family targets applications demanding reliable timing in space-constrained electronic devices.

Replacement Considerations

Direct substitutes must match the 11.228 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify equivalent electrical parameters such as jitter and stability. Check for pin-to-pin compatibility regarding the enable function.