18QHTF21-57.483667-PD

Overview

The 18QHTF21-57.483667-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 57.483667 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component includes a Standby (Power Down) function to manage power consumption when the oscillator is not in active use.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes Standby (Power Down) functionality for energy management
• Utilizes a compact 4-SMD No Lead surface-mount package

Applications

• Digital signal processing circuits requiring precise clock timing
• Communication systems utilizing LVCMOS interfaces
• Portable electronic devices constrained by size and power budgets

Procurement Notes

Verify that the specific part number matches the required frequency and voltage specifications before procurement. Confirm that the 4-SMD No Lead package type aligns with the PCB footprint design. Ensure the LVCMOS output logic is compatible with the target system's input requirements. Check for any specific handling instructions related to the surface-mount technology.

Selection Notes

Select this component when a 57.483667 MHz clock source is required with a 1.8V supply. Consider the 2.0x1.6mm package size for space-constrained designs. The Standby feature is beneficial for battery-operated applications. Verify that LVCMOS output levels meet the receiving circuit's voltage thresholds.

Part Context

This oscillator belongs to the Mercury Electronics QHT series, characterized by small form factors and low voltage operation. The '18' prefix typically indicates the 1.8V supply voltage requirement. The 'PD' suffix denotes the inclusion of a Power Down pin or function. This series is engineered for high reliability in consumer and industrial electronics.

Replacement Considerations

Direct replacements must match the 57.483667 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility if substituting with similar packages from other manufacturers.