18QHTF21-119.680-PD

Overview

The 18QHTF21-119.680-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 119.68 MHz with an LVCMOS output signal. The device functions on a 1.8V supply voltage and includes a standby or power-down feature for energy management. It is housed in a compact 4-SMD, no-lead package measuring 2.0x1.6 mm.

Feature Summary

• LVCMOS output interface
• Standby power-down capability
• Compact surface-mount form factor

Applications

• General clock generation
• Digital signal processing systems
• Communication equipment timing

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD no-lead package dimensions fit within your PCB layout constraints. Check for any specific RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component when a precise 119.68 MHz clock source is needed with low power consumption features. The LVCMOS output is suitable for direct interfacing with digital logic families operating at 1.8V. Consider the small footprint for space-constrained designs requiring reliable timing signals without complex external components.

Part Context

This part belongs to the Mercury 18QHTF21 series of surface-mount oscillators. The series offers various frequencies and voltage options, all sharing the same compact 2.0x1.6 mm package. It is designed for applications requiring stable clock signals in portable and high-density electronic devices.

Replacement Considerations

Direct substitutes include other 119.68 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pin compatibility and electrical specifications such as jitter and phase noise before substitution.