PL602082UMG

Clock Generators, PLLs, Frequency Synthesizers Overview

The PL602082UMG is a PCIe octal, ultra-low jitter HCSL frequency synthesizer manufactured by Micrel. It synthesizes eight HCSL clock outputs at frequencies of 25MHz, 125MHz, or 250MHz based on FSEL pin configuration. The device operates from a 2.5V or 3.3V power supply and accepts a 25MHz crystal or LVCMOS reference clock. Typical RMS phase jitter is 250fs for the 12kHz to 20MHz range. It complies with PCI Express Gen1, Gen2, and Gen3 standards and functions within an industrial temperature range of –40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates eight differential HCSL clock outputs.
• Synthesizes output frequencies of 25MHz, 125MHz, or 250MHz.
• Typical phase jitter of 250fs (12kHz to 20MHz integration range).
• Compliant with PCI Express Gen1, Gen2, and Gen3 specifications.

Clock Generators, PLLs, Frequency Synthesizers Applications

• Servers
• Storage systems
• Switches and routers
• Gigabit Ethernet
• Set-top boxes/DVRs

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify that the component is sourced from authorized distributors to ensure authenticity. Confirm the package type matches the 44-pin QFN specification. Check RoHS compliance status if required by specific manufacturing regulations. Ensure the ordering suffix corresponds to the desired shipping method, such as tray or tape and reel packaging.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the PL602082UMG when eight HCSL outputs are required for PCI Express applications. Choose this model over the PL602081 variant if the target frequencies are 125MHz or 250MHz rather than 100MHz or 200MHz. Ensure the system design accommodates the 2.5V or 3.3V operating voltage requirements and provides adequate decoupling capacitors near the VDD pins.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Micrel Precision Edge family of clock generators. It is designed specifically for high-performance timing solutions in data communication equipment. The device utilizes a unique synthesizer architecture to achieve low phase noise, making it suitable for demanding interface standards like PCIe.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The PL602081UMG is a compatible alternative within the same series but supports different output frequencies (25MHz, 100MHz, or 200MHz). Verify that the frequency selection logic aligns with the application requirements before substituting.