18QHTF21-106.666666-PD

Overview

The 18QHTF21-106.666666-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 106.666666 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a power-down standby function. 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 standby capability for energy management
• Utilizes LVCMOS output logic for digital interface compatibility
• Designed in a small surface-mount package

Applications

• General-purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD, No Lead package dimensions to prevent assembly issues during manufacturing.

Selection Notes

Select this component when a precise 106.666666 MHz clock source is required within a space-constrained design. The choice depends on the necessity for LVCMOS outputs and the availability of a stable 1.8V power supply. Consider the power-down feature if dynamic power management is critical for the end product's efficiency.

Part Context

This part belongs to the QHTF series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options. The 'PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from standard continuous-operation variants within the same package family.

Replacement Considerations

Direct substitutes must match the 106.666666 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify electrical parameters such as phase noise and jitter specifications to ensure functional equivalence in high-speed timing applications.