## Summary of the Document:

This document is a datasheet for the PhaseLink PLL620 2.5GHz Low Phase Noise XO (Crystal Oscillator). It details the features, electrical characteristics, and pad assignments for this component.

Key Highlights:

️· Purpose: A low phase noise crystal oscillator designed for frequency control applications.
️· Frequency: Designed for operation around 2.5 GHz.
️· Outputs: Supports both LVDS and PECL output levels.
️· Performance: Provides very low phase noise, crucial for applications like wireless communication and high-speed data transfer. It mentions phase noise figures of -80dBc/Hz at 10kHz offset with a fundamental crystal.
️· Pad Assignments: Detailed table mapping the function of each pad on the device package, including power, ground, inputs, outputs, and "Do Not Connect" pads. It highlights the benefit of connecting the optional VDD and GND pads for optimal phase noise performance.
️· Electrical Characteristics: Provides detailed electrical specifications for LVDS and PECL outputs, covering voltages, currents, and switching characteristics.
️· Ordering Information & Legal Disclaimers: Includes standard legal disclaimers regarding product changes, warranties, and life support applications.



In essence, this datasheet is a technical reference for engineers designing with the PhaseLink PLL620 crystal oscillator. It provides all the necessary information to integrate the component correctly and achieve optimal performance.