18QHTF21-16.7772-PD

Oscillators Overview

The 18QHTF21-16.7772-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 16.7772 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and features a Standby function for power down control. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output interface
• Includes standby mode capability for power management
• Utilizes a leadless surface-mount package design

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing
• Embedded system clock generation

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a stable 16.7772 MHz reference is required for low-voltage digital circuits. The choice depends on the need for LVCMOS compatibility and the availability of a standby control feature. Consider the physical size constraints imposed by the small SMD package and verify thermal performance within the intended operating environment.

Oscillators Part Context

This model belongs to the 18QHTF21 series from Mercury Electronic, a manufacturer established in 1973 specializing in frequency control products. The series typically includes various XO models with different frequencies, all sharing similar electrical characteristics and packaging styles. This specific part represents one variant within their standard oscillator lineup.

Oscillators Replacement Considerations

Direct substitutes must match the 16.7772 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility and electrical parameters such as phase noise and jitter if available in official datasheets.

Oscillators FAQ

What is the output logic level of the 18QHTF21-16.7772-PD?

The device outputs LVCMOS (Low Voltage CMOS) logic levels.

Does the 18QHTF21-16.7772-PD support power saving modes?

Yes, it includes a Standby function that allows for power down control.