18QHTF21-38.840-PD

Oscillators Overview

The 18QHTF21-38.840-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 38.84 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features a power-down mode accessible via standby control to minimize energy consumption during inactive periods. The component is housed in a compact 4-SMD, no-lead package, suitable for surface-mount assembly processes.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby power-down functionality for energy efficiency
• Utilizes a 4-SMD no-lead surface-mount package design

Oscillators Applications

• General clock signal generation for digital circuits
• Embedded systems requiring low-power oscillators
• Consumer electronics with space-constrained layouts

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet for your application environment.

Oscillators Selection Notes

Select this model when a precise 38.84 MHz clock source is required with minimal power consumption. The LVCMOS output ensures direct interfacing with standard logic families without additional buffering. Consider the physical dimensions of the 4-SMD package for board space optimization. Evaluate the standby feature if power management is critical for the end product.

Oscillators Part Context

This oscillator belongs to the Mercury Electronics XO series, focusing on standard frequency generation. The 'PD' suffix indicates the inclusion of power-down capabilities. The '18' prefix typically denotes the 1.8V supply voltage requirement. This family targets applications needing reliable timing signals in compact form factors.

Oscillators Replacement Considerations

Direct substitutes must match the 38.84 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics before swapping. Generic replacements may lack the specific standby function or exact dimensional fit.