18QHTF21-112.896-PD

Overview

The 18QHTF21-112.896-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 112.896 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a Standby (Power Down) control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Standard XO configuration with LVCMOS output interface
• Integrated standby control for power down functionality
• Compact 4-SMD no-lead surface mount package

Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded system timing references

Procurement Notes

Verify the specific ordering suffix to confirm the exact electrical characteristics and package type. Ensure compatibility with the target circuit's voltage levels and control requirements. Consult official manufacturer documentation for detailed mechanical dimensions and thermal specifications before integration.

Selection Notes

Select this component when a 112.896 MHz reference signal is required with low voltage operation. The LVCMOS output ensures compatibility with standard digital logic families. Consider the standby feature if power efficiency during idle states is a critical design parameter for the application.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The PD suffix indicates the presence of a power-down control pin, distinguishing it from models without standby capabilities.

Replacement Considerations

Direct substitutes must match the 112.896 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify that replacement parts support the same standby control functionality to maintain system power management behavior.