18QHTF21-57.2727-PD

Overview

The 18QHTF21-57.2727-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.2727 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby power-down mode for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby power-down functionality to reduce consumption
• Designed for surface mount assembly in small form factors

Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring 57.2727 MHz
• Embedded devices utilizing low-voltage power supplies

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your power management architecture. Ensure the 4-SMD package footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet for your application environment.

Selection Notes

Select this component when a precise 57.2727 MHz timing source is required with low power consumption capabilities. The LVCMOS output ensures compatibility with standard digital logic families. Consider the 1.8V operating voltage if your system design prioritizes lower power levels. The compact 2.0x1.6mm package is suitable for space-constrained applications requiring surface mount technology integration.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency control solutions. The manufacturer specializes in quartz crystals and oscillators, offering various frequency options within the same package family. The 18QHTF21 designation indicates a specific size and pin configuration common to their low-profile oscillator lineup.

Replacement Considerations

Direct substitutes must match the 57.2727 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify equivalent electrical parameters such as phase noise and stability before substitution.