18QHTF21-13.539-OE

Overview

The 18QHTF21-13.539-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a nominal frequency of 13.539 MHz and utilizes LVCMOS output logic levels. The component is designed for low-voltage applications, requiring a 1.8V supply voltage. It features an integrated enable and disable control function to manage power consumption during idle states. The device is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output interface
• 1.8V supply voltage operation
• Enable/Disable control functionality

Applications

• Low-power embedded systems
• Portable electronic devices
• Communication modules

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's specifications. Ensure the PCB footprint matches the 4-SMD No Lead package dimensions provided in the official datasheet. Check for any specific reflow soldering profile recommendations from the manufacturer to ensure reliability.

Selection Notes

Select this component when a precise 13.539 MHz clock signal is required with minimal power consumption. The enable/disable feature makes it suitable for battery-operated devices where power management is critical. Ensure the application environment temperature falls within the specified operating range. Consider the LVCMOS compatibility with downstream digital logic inputs to avoid level shifting issues.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronic. The series offers various frequencies optimized for different timing applications. Mercury Electronic is a recognized supplier of frequency control products, including quartz crystals and oscillators, with a long history in the industry. This specific model represents a low-voltage solution within their portfolio.

Replacement Considerations

Direct substitutes must match the 13.539 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if available. Cross-reference with other manufacturers offering similar low-voltage XO components.