18QHTF21-83.895-PD

Overview

The 18QHTF21-83.895-PD is a standard XO (Crystal Oscillator) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 83.895 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports Standby (Power Down) functionality for power management
• Utilizes LVCMOS output logic for digital interface compatibility
• Designed in a small form factor 4-SMD, No Lead package

Applications

• General purpose clock generation in embedded systems
• Timing reference for digital signal processing circuits
• Clock source for microcontrollers and FPGAs requiring low voltage operation

Procurement Notes

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

Selection Notes

Select this component when a precise 83.895 MHz timing signal is required within space-constrained designs. The choice is driven by the need for low voltage operation at 1.8V and the integration of standby capabilities. Engineers should prioritize this model over larger packages if board real estate is limited, while ensuring the LVCMOS output meets the input requirements of the downstream logic devices.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The series offers various frequencies and package sizes, catering to diverse electronic applications. Mercury Electronics has been a pioneer in the crystal industry since 1973, providing reliable components for global markets.

Replacement Considerations

Direct substitutes must match the 83.895 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm 4-SMD package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter to ensure seamless integration without redesigning the host circuit.