18QHTF21-72.852-PD

Overview

The 18QHTF21-72.852-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 72.852 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features a power-down mode for standby functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

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

Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's operational specifications. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to guarantee proper mechanical fit and electrical connectivity during assembly.

Selection Notes

Select this component when a precise 72.852 MHz clock source is required for low-voltage digital systems. Consider the LVCMOS output compatibility with downstream logic levels. Evaluate the need for power-down functionality to manage system energy consumption. Verify that the operating temperature range aligns with the environmental conditions of the intended application environment.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a small form factor. The 'PD' suffix indicates the inclusion of a power-down pin or feature, allowing for active standby states to reduce power usage during idle periods.

Replacement Considerations

Direct substitutes include other 72.852 MHz LVCMOS oscillators in 2.0x1.6mm packages from compatible manufacturers. Ensure equivalent supply voltage (1.8V) and output drive strength. Verify thermal performance and frequency stability metrics match the original design requirements for seamless integration.