18QHTF21-13.5695-OE

Overview

The 18QHTF21-13.5695-OE is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.5695 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• LVCMOS output logic for standard digital interface compatibility
• Integrated enable and disable control functionality
• Compact 4-SMD no lead surface mount package design

Applications

• General clock signal generation in electronic circuits
• Timing reference for low-voltage digital systems
• Embedded system clock sources requiring small form factor

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to prevent assembly issues. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure component reliability during manufacturing.

Selection Notes

Select this component when a precise 13.5695 MHz timing source is required for low-voltage applications. The LVCMOS output is suitable for direct interfacing with standard logic families. Consider the enable/disable feature if power management or clock gating is necessary within the design. The small package size makes it appropriate for space-constrained portable or dense electronic devices.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a standardized small outline package. These components are designed for general-purpose timing applications where stability and low power consumption are prioritized over high-frequency performance found in VCXOs or TCXOs.

Replacement Considerations

Direct substitutes must match the 13.5695 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter specifications. Cross-reference with other manufacturers offering similar XO packages to ensure functional equivalence in the target application.