18QHTF21-80.5308-PD

Overview

The 18QHTF21-80.5308-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 80.5308 MHz and utilizes LVCMOS output logic levels. The device requires a 1.8V supply voltage for operation. It features a standby mode that allows for power-down functionality to reduce energy consumption during inactive periods. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output interface
• Standby (Power Down) capability

Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded system timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design specifications before procurement. Confirm that the 1.8V supply voltage aligns with the system power architecture. Ensure the 4-SMD No Lead package dimensions fit within the available PCB footprint constraints. Cross-reference the part number suffix with official documentation to confirm the exact variant characteristics.

Selection Notes

Select this oscillator when a precise 80.5308 MHz reference is required with low-voltage compatibility. Consider the LVCMOS output compatibility with downstream digital logic families. Evaluate the standby feature necessity for power-sensitive designs. Compare the physical size of the 4-SMD package against alternative form factors if space is constrained. Verify thermal performance within the specified operating temperature range.

Part Context

This component belongs to the Mercury 18QHTF21 series of surface-mount crystal oscillators. The series typically offers various frequency options while maintaining consistent electrical characteristics such as 1.8V operation and LVCMOS outputs. The 'PD' suffix likely indicates specific packaging or testing parameters defined by the manufacturer. This series supports applications requiring stable clock signals in compact electronic devices.

Replacement Considerations

Direct replacements must match the 80.5308 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and electrical specifications before substitution.