PI6LC4820ZDE

Overview

The PI6LC4820ZDE is a HiFlex Ethernet Network Clock Generator designed for 10GbE applications. It operates on a 3.3V supply and accepts a 25MHz crystal input or differential signals up to 160MHz. The device generates output frequencies of 312.5, 156.25, and 125MHz using an LC VCO-based PLL design. It provides nine selectable LVPECL or LVDS outputs across three banks (A, B, C). Key electrical characteristics include a maximum integrated phase jitter of 1ps rms (12kHz-20MHz) and typical power supply noise rejection of -50 dBc at 156.25MHz.

Feature Summary

• Supports simultaneous output frequencies of 312.5, 156.25, and 125MHz via programmable dividers.
• Features low phase noise with max 1ps integrated jitter (12kHz-20MHz) and -50 dBc power supply noise rejection.
• Provides nine differential outputs configurable as LVPECL or LVDS through mode control pins.
• Includes PLL bypass mode for direct input-to-output signal routing during testing.

Applications

• 10 Gigabit Ethernet (10GbE) systems
• Advanced Gigabit Ethernet network infrastructure
• Clock distribution for high-speed digital circuitry requiring low jitter

Procurement Notes

Verify the package code ZD corresponds to the 48-pin TQFN form factor. Confirm the 'E' suffix indicates Pb-free and Green compliance. Ensure the specific ordering code includes the 'X' suffix if tape and reel packaging is required, as the base part number may imply tube packaging.

Selection Notes

Select this component when a low-jitter clock source is needed for 10GbE designs. Ensure the application supports a 3.3V supply voltage. Verify that the required output interface matches the LVPECL or LVDS capabilities. Check that the input frequency requirements align with the supported 25MHz crystal or differential inputs up to 160MHz.

Part Context

This part belongs to the HiFlex family of clock generators from Diodes Incorporated (formerly Pericom Semiconductor). It is specifically engineered for Ethernet networking applications, offering flexible output configurations and low phase noise performance suitable for high-speed data transmission standards.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult manufacturer cross-reference tools for potential alternatives.