18QHTF21-57.493667-PD

Overview

The 18QHTF21-57.493667-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 57.493667 MHz with an LVCMOS output signal. The device functions at a supply voltage of 1.8V and features a standby power-down mode for energy efficiency. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down functionality
• Utilizes LVCMOS output interface

Applications

• General-purpose digital timing circuits
• Embedded systems requiring precise clock sources
• Portable electronic devices utilizing low-power components

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Cross-reference the manufacturer datasheet for detailed electrical characteristics to guarantee compatibility with your application environment.

Selection Notes

Select this component when a stable 57.493667 MHz clock signal is required within a low-power constraint. The LVCMOS output ensures compatibility with standard logic families operating at 1.8V. Consider the small 2.0x1.6 mm package size for space-constrained designs. Evaluate the need for standby modes if power management is critical to the system architecture.

Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronic Ind. Co., Ltd. The series typically offers various frequencies and voltage options. The 'PD' suffix indicates the inclusion of a power-down feature. This specific model provides a high-frequency solution in a miniature form factor, distinguishing it from larger through-hole or standard SMD packages.

Replacement Considerations

Direct replacements must match the 57.493667 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications such as phase noise and jitter. Consult manufacturer cross-reference lists for verified equivalents.