18QHTF21-109.98965-PD

Overview

The 18QHTF21-109.98965-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 109.98965 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6mm. This component is suitable for applications requiring precise timing signals in space-constrained electronic systems.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby and power-down functionality for energy management
• Utilizes a compact 4-SMD no-lead surface mount package

Applications

• Digital signal processing circuits
• Communication equipment timing references
• Embedded system clock generation

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Ensure the 1.8V supply voltage aligns with the target circuit design. Confirm that the 4-SMD no-lead package footprint matches the PCB layout constraints. Check for any specific operating temperature range limitations defined by the manufacturer for the intended application environment.

Selection Notes

Select this oscillator when a precise 109.98965 MHz clock signal is required in low-voltage 1.8V systems. The LVCMOS output ensures compatibility with standard digital logic families. Consider the small 2.0x1.6mm footprint for dense PCB layouts. Evaluate the need for power-down capabilities if energy efficiency is a critical design parameter for the end product.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series typically offers various frequencies within a similar form factor. The 'PD' suffix indicates the inclusion of power-down functionality. Mercury Electronics specializes in frequency control products, including crystals and oscillators, providing reliable timing solutions for industrial and consumer electronics markets.

Replacement Considerations

Direct substitutes must match the 109.98965 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as jitter and phase noise. Cross-reference with other manufacturers offering equivalent SMD oscillators with identical form factors and voltage levels.