18QHTF21-19.560-PD

Oscillators Overview

The 18QHTF21-19.560-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 19.56 MHz and utilizes LVCMOS output logic levels. The device requires a supply voltage of 1.8V and features a power-down function for standby mode control. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.00mm x 1.60mm.

Oscillators Feature Summary

• LVCMOS output interface
• Power-down capability
• Compact surface-mount package

Oscillators Applications

• Digital signal processing systems
• Communication equipment clocking
• Microcontroller timing references

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.00mm x 1.60mm SMD package dimensions to guarantee proper assembly and electrical connectivity.

Oscillators Selection Notes

Select this component when a precise 19.56 MHz reference is required with low-power standby functionality. Consider the LVCMOS compatibility with downstream digital logic. Evaluate the small form factor suitability for space-constrained designs compared to larger oscillator packages.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 4-SMD footprint. The 'PD' suffix indicates the inclusion of a power-down pin for energy management.

Oscillators Replacement Considerations

Direct substitutes must match the 19.56 MHz frequency, 1.8V operation, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility for the power-down function.