18QHTF21-57.723667-PD

Overview

The 18QHTF21-57.723667-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.723667 MHz with a frequency stability of 50 ppm. The device utilizes LVCMOS output logic and requires a supply voltage of 1.8V. Maximum current consumption is specified as 24 mA. The component features a 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. It supports a standby or power-down mode for energy management.

Feature Summary

• Supports standby or power-down mode for reduced power consumption
• Utilizes LVCMOS output logic for digital interface compatibility
• Employs a compact 4-SMD no-lead surface mount package

Applications

• General-purpose timing clock generation in electronic circuits
• Digital signal processing systems requiring precise frequency references
• Communication equipment utilizing standard crystal oscillator interfaces

Procurement Notes

Verify the specific ordering suffix and package variant against the manufacturer's official datasheet to ensure compatibility with design requirements. Confirm that the 1.8V supply voltage and LVCMOS output levels align with the target system's electrical specifications before finalizing procurement orders.

Selection Notes

Select this component when a 57.723667 MHz reference with 50 ppm stability is required within a 2.0x1.6 mm footprint. Ensure the application circuit can provide a stable 1.8V supply and accommodates the 24 mA maximum current draw. Consider the standby feature if power management during idle states is a design priority.

Part Context

This part belongs to the QHTF series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages within small form factors. The 'PD' suffix indicates the inclusion of a power-down control function, distinguishing it from continuously running variants in the same family.

Replacement Considerations

Direct substitutes must match the 57.723667 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Verify that alternative sources offer equivalent 50 ppm stability and identical pinout configurations to ensure board-level interchangeability without circuit modification.