18QHTF21-57.743667-PD

Overview

The 18QHTF21-57.743667-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 57.743667 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a Standby (Power Down) function to manage power consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode functionality for power management
• Utilizes a surface-mount package design for automated assembly

Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring 1.8V operation
• Embedded applications utilizing standard XO interfaces

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's power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions specified in the official datasheet to prevent mounting issues during assembly.

Selection Notes

Select this component when a precise 57.743667 MHz timing source is required within a low-voltage 1.8V environment. The choice is appropriate for designs prioritizing small form factor integration via the 2.0x1.6mm package. Consider the standby feature if power efficiency during idle states is a critical design constraint for the application.

Part Context

This part belongs to the Mercury Electronics QHTF series of quartz crystal oscillators. The series typically offers various frequencies and supply voltages, catering to diverse timing needs in consumer and industrial electronics. The 'PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from models without standby capabilities.

Replacement Considerations

Direct replacements must match the 57.743667 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify equivalent electrical specifications such as phase noise and stability before substitution.