18QHTF21-59.9824-OE

Overview

The 18QHTF21-59.9824-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 59.9824 MHz and utilizes LVCMOS output logic. The device is designed for 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. This component is suitable for applications requiring precise timing signals within low-voltage digital systems.

Feature Summary

• Supports LVCMOS output logic for direct interface with digital circuits
• Includes enable/disable functionality for power management
• Compact surface-mount package design

Applications

• General purpose clock generation in embedded systems
• Timing reference for microcontrollers and processors
• Data communication interfaces requiring stable clock sources

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 GPIO. Check the operating temperature range specifications to ensure reliability under your intended environmental conditions.

Selection Notes

Select this component when a 59.9824 MHz clock signal is required with low voltage operation. Consider the 1.8V supply constraint and LVCMOS compatibility with downstream logic. Evaluate the physical space constraints due to the small 2.0x1.6mm footprint. 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 QHTF series of crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The '18' prefix typically indicates the 1.8V supply voltage variant. The 'OE' suffix denotes the presence of an enable pin. These oscillators are designed for consumer electronics and portable devices where size and power consumption are key factors.

Replacement Considerations

Direct replacements must match the 59.9824 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility, especially the enable pin configuration. Ensure equivalent electrical characteristics such as rise/fall times and drive strength. Consult manufacturer cross-reference lists for verified alternatives.