18QHTF21-23.79021-PD

Oscillators Overview

The 18QHTF21-23.79021-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 23.79021 MHz and utilizes LVCMOS output logic. The device is designed for low-power applications, featuring a supply voltage of 1.8V and a standby power-down mode. It is housed in a compact 4-SMD, no-lead package, suitable for surface-mount assembly in space-constrained electronic designs requiring precise timing signals.

Oscillators Feature Summary

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

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing references
• Embedded control circuits

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Ensure that the 1.8V supply voltage aligns with the system's power rails. Confirm that the LVCMOS output levels are compatible with the receiving logic inputs to prevent signal integrity issues or potential damage to downstream components during operation.

Oscillators Selection Notes

Select this component when a precise 23.79021 MHz clock source is required with minimal power consumption. The choice is appropriate for designs prioritizing low voltage operation and compact form factors. Consider the availability of the specific ordering suffix PD for packaging variations. Evaluate thermal management needs based on the operating temperature range specified in the official datasheet to ensure reliability under varying environmental conditions.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies within the same package footprint. The manufacturer specializes in quartz crystals and timing devices, providing solutions for consumer electronics and industrial applications. This specific model represents a standard XO variant optimized for general-purpose timing needs.

Oscillators Replacement Considerations

Direct replacements must match the 23.79021 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility and electrical characteristics such as phase noise and jitter specifications. Consult the manufacturer's cross-reference list for approved substitutes.