18QHTF21-13.571-OE

Overview

The 18QHTF21-13.571-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 13.571 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable functionality for power management
• Compact 4-SMD no-lead surface mount package design

Applications

• Timing and clock signal generation in electronic devices
• Embedded systems requiring precise frequency references
• Consumer electronics with low-voltage logic requirements

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Ensure the 1.8V supply voltage aligns with the system's power rails. Confirm that the LVCMOS output swing is compatible with the receiving logic inputs. Check the operating temperature range specifications to ensure reliability under expected environmental conditions. Validate the physical footprint matches the PCB layout constraints.

Selection Notes

Select this component when a stable 13.571 MHz reference is required for LVCMOS-based digital circuits. Consider the 1.8V supply constraint as a primary selection criterion. Evaluate the need for active enable/disable control versus always-on operation. Assess the space limitations for the 4-SMD package size. Compare performance metrics such as phase noise and stability if high-precision timing is critical for the application.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies within a standardized form factor. The 'OE' suffix often denotes specific packaging or tape-and-reel options, though exact definitions require datasheet confirmation. This model represents a specific frequency variant within the broader family of surface-mount oscillators designed for general-purpose timing applications.

Replacement Considerations

Direct substitutes must match the 13.571 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Verify pinout compatibility and electrical characteristics such as current consumption and startup time. Cross-reference with other manufacturers offering equivalent XO components in the same package style.