18QHTF21-109.5575-OE

Overview

The 18QHTF21-109.5575-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 109.5575 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features enable/disable control functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed for high-frequency timing applications requiring precise clock signals.

Feature Summary

• Provides stable 109.5575 MHz clock signal generation
• Features low-voltage LVCMOS output interface
• Includes hardware enable and disable control capability
• Utilizes surface-mount no-lead packaging for automated assembly

Applications

• High-speed digital data transmission systems
• Communication equipment clock synchronization
• Embedded system timing references
• Network interface card oscillators

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your circuit design specifications before ordering. Confirm that the 1.8V supply voltage aligns with your power management architecture. Ensure the 4-SMD footprint matches your PCB layout constraints. Check for any specific RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Choose this component when a precise 109.5575 MHz frequency is mandatory for system operation. The LVCMOS output is suitable for direct interfacing with standard logic families. Consider the small form factor for space-constrained designs. Verify that the enable pin functionality meets your power management needs for active and standby modes.

Part Context

This part belongs to the QHTF series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a standardized 4-SMD package. These oscillators are designed for general-purpose timing applications where size and power consumption are critical factors. The 'OE' suffix typically indicates specific operational characteristics or packaging variations defined by the manufacturer.

Replacement Considerations

Direct substitutes must match the 109.5575 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Cross-reference with other manufacturers offering similar SMD oscillators only if electrical parameters and pinout compatibility are verified. Ensure thermal and environmental specifications meet the original application requirements.