18QHTF21-49.580-PD

Overview

The 18QHTF21-49.580-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 49.58 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning at a supply voltage of 1.8V. It features a power-down capability to reduce energy consumption when not in active use. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount assembly.

Feature Summary

• Supports LVCMOS output signal compatibility
• Includes power-down functionality for standby mode
• Operates on a 1.8V supply voltage

Applications

• Embedded systems requiring precise timing
• Portable electronic devices with low power constraints
• Digital communication interfaces

Procurement Notes

Verify the specific suffix 'PD' confirms the power-down feature against the manufacturer's official datasheet. Ensure the 1.8V operating voltage aligns with your system design requirements. Confirm the 4-SMD no-lead package footprint matches your PCB layout specifications before finalizing procurement orders.

Selection Notes

Select this component when a 49.58 MHz clock source is required in space-constrained designs. The 1.8V operation makes it suitable for modern low-power digital circuits. The power-down feature offers efficiency benefits for battery-operated applications. Verify that the LVCMOS output swing meets the input thresholds of the receiving logic gates.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystals and oscillators. The series provides various frequencies and package options for timing applications. Mercury Electronics is a supplier based in Taiwan focusing on frequency-control components including TCXOs and VCTCXOs.

Replacement Considerations

Check for direct substitutes within the 18QHTF21 series offering identical 49.58 MHz frequency and 1.8V operation. Cross-reference pinout and footprint compatibility if considering alternative manufacturers. Ensure equivalent electrical characteristics are maintained during substitution.

FAQ

What is the output logic type of the 18QHTF21-49.580-PD?

The component uses LVCMOS (Low Voltage Complementary Metal-Oxide-Semiconductor) output logic.

Does this oscillator support a power-down mode?

Yes, the '-PD' suffix indicates that the device includes a power-down function for standby operation.