18QHTF21-37.7953-PD

Oscillators Overview

The 18QHTF21-37.7953-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 37.7953 MHz and utilizes an LVCMOS output interface. The device is designed for low-voltage applications, functioning with a supply voltage of 1.8V. It features a power-down capability, allowing for standby mode operation to reduce power consumption when the oscillator is not in active use. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• Supports LVCMOS output logic levels for digital interfacing
• Includes power-down functionality for standby mode control
• Utilizes a leadless SMD package for surface-mount integration

Oscillators Applications

• Digital signal processing systems requiring precise clock timing
• Communication equipment utilizing standard frequency references
• Embedded systems operating at 1.8V logic levels

Oscillators Procurement Notes

Verify that the specific part number matches the required frequency and voltage specifications before ordering. Confirm that the PCB footprint accommodates the 4-SMD, No Lead package dimensions. Ensure that the design supports the LVCMOS output requirements and that the power-down pin is correctly connected if standby functionality is utilized. Cross-reference the manufacturer's datasheet for detailed electrical characteristics and reliability data.

Oscillators Selection Notes

Select this component when a 37.7953 MHz reference is required for 1.8V logic circuits. Consider the small form factor for space-constrained designs. Evaluate the need for power-down capabilities to manage system energy efficiency. Compare against other oscillators in the series for alternative frequencies or voltage options if the current specifications do not fully align with the application requirements.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which offers various standard frequencies in a compact surface-mount package. The series is characterized by its low voltage operation and power management features. Mercury Electronics specializes in frequency control products, including quartz crystals and oscillators, providing timing solutions for electronic devices.

Oscillators Replacement Considerations

Direct substitutes within the same series include models such as 18QHTF21-51.200-PD or 18QHTF21-12.300-PD, provided the frequency difference is acceptable for the application. Other manufacturers may offer equivalent LVCMOS oscillators with similar voltage and package constraints, but verification of pinout and electrical parameters is essential.