18QHTF21-91.750-PD

Overview

The 18QHTF21-91.750-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 91.75 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 2.0mm x 1.6mm.

Feature Summary

• Generates a precise 91.75 MHz clock signal using LVCMOS output interface
• Operates on a single 1.8V power supply rail
• Integrates a standby mode to reduce power consumption when inactive

Applications

• Digital signal processing systems requiring stable timing references
• Communication equipment utilizing LVCMOS compatible interfaces
• Portable electronic devices where low voltage operation is required

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V operating voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a 91.75 MHz frequency is strictly required alongside LVCMOS compatibility. Consider the 1.8V supply constraint and the availability of a power-down feature for efficiency. Evaluate the small 2.0x1.6mm package size against available board space. Compare against other Mercury Electronics models if different frequencies or voltages are needed.

Part Context

This part belongs to the Mercury Electronics XO series, designed for general-purpose timing applications. The 'PD' suffix indicates the inclusion of a power-down capability. The 18QHTF21 series typically offers standard performance levels suitable for consumer and industrial electronics, balancing cost and reliability within the quartz oscillator market segment.

Replacement Considerations

Direct substitutes must match the 91.75 MHz frequency, LVCMOS output, and 1.8V supply. Verify pinout compatibility for the 4-SMD no-lead package. Check datasheets for equivalent standby functionality and operating temperature ranges to ensure seamless integration without circuit modification.