18QHTF21-80.911-PD

Overview

The 18QHTF21-80.911-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 80.911 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down standby function to reduce consumption. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down standby capability
• Provides LVCMOS signal output

Applications

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

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against your circuit design before procurement. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package dimensions. Confirm that the 1.8V supply rail meets the current specifications for the LVCMOS output stage during active operation.

Selection Notes

Select this component when a precise 80.911 MHz reference is required in space-constrained designs. The choice depends on the compatibility of the LVCMOS interface with the target digital logic family. Consider the thermal performance and stability requirements relative to the intended operating environment.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a small form factor. The 'PD' suffix indicates the inclusion of a power-down control feature, distinguishing it from continuous-operation variants.

Replacement Considerations

Direct replacements must match the 80.911 MHz frequency, 1.8V supply, and 4-SMD package. Verify pinout compatibility and electrical characteristics of alternative manufacturers' parts to ensure functional equivalence.