18QHTF21-82.920-PD

Overview

The 18QHTF21-82.920-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 82.92 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals within low-voltage digital systems.

Feature Summary

• Supports LVCMOS output logic for standard digital interfacing
• Includes standby and power-down functionality to reduce power consumption
• Utilizes a compact 4-SMD no-lead surface mount package

Applications

• Digital signal processing circuits
• Communication equipment requiring precise clocking
• Embedded systems with low-voltage logic levels

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to avoid assembly issues. Check for any specific handling instructions related to the no-lead package type during soldering processes.

Selection Notes

Select this oscillator when a stable 82.92 MHz reference is required for LVCMOS-compatible devices. Consider the 1.8V operating voltage as a primary constraint for power supply design. The choice depends on the need for a power-down feature to manage idle state energy usage. Evaluate the physical space constraints to ensure the small 4-SMD package fits the layout. Compare performance against other frequencies if the exact 82.92 MHz is not strictly necessary.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various standard frequencies in a small form factor. The 'PD' suffix indicates the inclusion of power-down capabilities. Mercury Electronics is a established manufacturer of frequency control products, providing quartz-based timing solutions.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with different frequencies, such as 18QHTF21-50.000-PD or 18QHTF21-6.000-PD, provided the frequency difference is acceptable. Cross-reference with other manufacturers offering 2.0x1.6mm LVCMOS oscillators with 1.8V operation and power-down pins. Verify pin compatibility and electrical specifications before substitution.