18QHTF21-21.4772-OE

Oscillators Overview

The 18QHTF21-21.4772-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 21.4772 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.5mm x 2.0mm. This component is designed for timing applications requiring precise clock signals within the specified operating temperature range.

Oscillators Feature Summary

• Provides stable 21.4772 MHz clock signal generation
• Supports low-voltage 1.8V operation for power efficiency
• Includes enable/disable functionality for system power management
• Utilizes compact surface-mount packaging for space-constrained designs

Oscillators Applications

• Digital signal processing systems
• Communication equipment clock sources
• Embedded microcontroller timing circuits
• Consumer electronics internal synchronization

Oscillators Procurement Notes

Verify the exact operating temperature range and load capacitance requirements from the official datasheet before procurement. Ensure the 1.8V supply voltage matches the target circuit design. Confirm that the 4-SMD package footprint aligns with the PCB layout specifications. Check for any specific handling instructions regarding electrostatic discharge sensitivity during assembly.

Oscillators Selection Notes

Select this oscillator when a precise 21.4772 MHz frequency is required with low voltage operation. Consider the enable/disable feature if power management is critical. Evaluate the 2.5x2.0mm package size against available board space. Compare performance metrics such as phase noise and stability against other options in the Mercury Electronics lineup to ensure suitability for the specific application environment.

Oscillators Part Context

This component belongs to the 18QHTF series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage levels. The 'OE' suffix typically indicates an enable pin configuration. Mercury Electronics specializes in quartz crystals and oscillators, providing timing solutions for industrial and consumer markets. This part represents a standard offering within their portfolio of surface-mount timing devices.

Oscillators Replacement Considerations

Direct substitutes must match the 21.4772 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.5x2.0mm package. Verify compatibility of the enable/disable pinout. Consult manufacturer cross-reference lists for approved alternatives. Ensure replacement parts meet the same electrical and mechanical specifications to maintain system performance.