18QHTF21-13.760-PD

Overview

The 18QHTF21-13.760-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 13.76 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals with low power consumption capabilities.

Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Supports standby mode to reduce power consumption during idle periods
• Utilizes a leadless SMD package for surface-mount assembly efficiency

Applications

• General purpose timing reference in embedded systems
• Clock source for microcontrollers and digital signal processors
• Consumer electronics requiring low-power clock generation

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm 4-SMD no-lead package specifications. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliable joint formation.

Selection Notes

Select this component when a 13.76 MHz clock signal is required with LVCMOS compatibility. Consider the 1.8V operating voltage constraint relative to other available supply voltages like 2.5V or 3.3V. Evaluate the need for a power-down feature versus continuous operation. Compare the physical size constraints against alternative packages if space is limited.

Part Context

This part belongs to the QHTF series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages. The 'PD' suffix indicates the inclusion of a power-down control pin. These devices are generally used in portable and battery-operated equipment where size and power efficiency are critical factors.

Replacement Considerations

Direct replacements must match the 13.76 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility, specifically the power-down pin configuration. Cross-reference electrical parameters such as jitter and stability to ensure functional equivalence in the target application.