18QHTF21-75.525-PD

Overview

The 18QHTF21-75.525-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 75.525 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, supporting a supply voltage of 1.8V. It features a power-down capability to reduce energy consumption during standby periods. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for space-constrained surface-mount designs.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated power-down function for standby mode operation
• Compact 4-SMD no-lead surface mount package

Applications

• General clock signal generation in embedded systems
• Timing reference for digital communication interfaces
• Clock source for microcontroller or FPGA circuits

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 4-SMD footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations required by your application environment.

Selection Notes

Select this component when a precise 75.525 MHz clock signal is required with low power consumption. The LVCMOS output ensures compatibility with standard digital logic families. The small form factor makes it ideal for portable or high-density electronic devices where board space is limited. Consider the power-down feature if energy efficiency during idle states is a priority.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and supply voltages. The 'PD' suffix indicates the inclusion of a power-down control pin. These oscillators are quartz-based, providing stable frequency performance typical of MEMS or quartz technologies used in timing applications.

Replacement Considerations

Direct substitutes include other 75.525 MHz LVCMOS oscillators in a 2.0x1.6mm 4-SMD package with 1.8V operation. Verify pinout compatibility and electrical specifications such as jitter and phase noise before substitution.