18QHTF21-78.59823-OE

Overview

The 18QHTF21-78.59823-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 78.59823 MHz and utilizes LVCMOS output logic. The device is powered by a 1.8V supply voltage and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm. This component is designed for applications requiring precise timing signals within space-constrained electronic systems.

Feature Summary

• Supports enable and disable functionality for power management
• Utilizes LVCMOS output logic for digital interface compatibility
• Compact surface-mount design suitable for high-density PCB layouts

Applications

• Digital signal processing circuits
• Communication equipment timing references
• Embedded system clock generation

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the enable pin logic levels are compatible with your controlling microcontroller or FPGA to ensure proper operation of the oscillator's start-stop functionality.

Selection Notes

Select this component when a low-voltage 1.8V supply is available and space constraints require a 2.0x1.6mm footprint. It is appropriate for designs needing a standard LVCMOS output rather than differential signaling. Consider the enable feature if dynamic power saving during idle periods is required for the target application.

Part Context

This part belongs to Mercury Electronics' series of surface-mount crystal oscillators. The manufacturer specializes in quartz-based frequency control products, including crystals, TCXOs, and VCTCXOs. The 18QHTF21 series typically offers standard performance levels for general-purpose timing applications in consumer and industrial electronics.

Replacement Considerations

Check for direct substitutes from Mercury Electronics such as the 18QHTF21-78.59823 without the OE suffix if enable functionality is not needed. Verify equivalent parts from other manufacturers offering 78.59823 MHz, 1.8V, LVCMOS, and 2.0x1.6mm SMD packages. Ensure pinout and electrical characteristics match exactly before substitution.