18QHTF21-75.8875-PD

Overview

The 18QHTF21-75.8875-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 75.8875 MHz and utilizes LVCMOS output logic. The device is powered by a 1.8V supply voltage and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Generates a stable 75.8875 MHz clock signal using LVCMOS logic levels
• Operates on a single 1.8V power supply rail
• Includes standby functionality to reduce power consumption when not in use

Applications

• Digital signal processing systems requiring precise timing
• Communication equipment utilizing LVCMOS interfaces
• Embedded systems with low-voltage power constraints

Procurement Notes

Verify the exact operating temperature range and load capacitance requirements against your specific circuit design before procurement. Ensure that the 1.8V supply voltage remains within specified tolerances to maintain frequency stability. Confirm that the PCB layout supports the 4-SMD no-lead package dimensions to ensure proper soldering and mechanical reliability during assembly.

Selection Notes

Select this component when a 75.8875 MHz frequency is required with LVCMOS compatibility. Consider the 1.8V supply constraint and standby feature for power-sensitive designs. Evaluate the 4-SMD package size against available board space. Compare performance metrics such as phase noise and stability if available in official documentation to ensure suitability for high-precision applications.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, which manufactures frequency control products. The series typically includes various crystal oscillators with different frequencies and output types. Mercury Electronics has been a pioneer in the crystal industry since 1973, providing reliable timing solutions for electronic components.

Replacement Considerations

Check for direct substitutes with identical 75.8875 MHz frequency, LVCMOS output, and 1.8V operation. Verify package compatibility for 4-SMD no-lead footprints. Ensure any replacement maintains similar electrical characteristics and standby functionality.