18QHTF21-28.704-PD

Oscillators Overview

The 18QHTF21-28.704-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 28.704 MHz with an LVCMOS output logic level. 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 2.0x1.6 mm.

Oscillators Feature Summary

• Supports standby mode via power-down control
• Utilizes LVCMOS output interface
• Compact surface-mount form factor

Oscillators Applications

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

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 2.0x1.6mm footprint matches your PCB layout constraints. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliable assembly.

Oscillators Selection Notes

Select this component when a precise 28.704 MHz reference is required for low-voltage digital interfaces. The LVCMOS output ensures compatibility with standard logic families operating at 1.8V. Consider the power-down feature if battery life or thermal management is critical. The small package size makes it suitable for space-constrained portable devices.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6mm footprint. These components are designed for applications requiring stable clock signals in consumer electronics and industrial controls.

Oscillators Replacement Considerations

Direct substitutes must match the 28.704 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter specifications before swapping.