PI6LC48P03LEX

Overview

The PI6LC48P03LEX is a 3-output LVPECL synthesizer from the HiFlex family, designed for Ethernet reference clock generation. It utilizes a 31.25MHz or 26.041666MHz crystal to produce selectable frequencies of 125MHz, 156.25MHz, 312.5MHz, and 625MHz via four frequency select pins. The device features ultra-low phase jitter (0.3ps typical at 156.25MHz) using proprietary low phase noise PLL technology. It supports full 3.3V or 2.5V supply modes and operates within commercial ambient temperature ranges (-40°C to +85°C).

Feature Summary

• Three differential LVPECL output pairs with selectable divider settings.
• Supports crystal oscillator interface (31.25MHz/26.041666MHz) or LVCMOS/LVTTL single-ended input.
• Generates standard Ethernet frequencies: 125MHz, 156.25MHz, 312.5MHz, and 625MHz.
• Ultra-low RMS phase jitter of 0.3ps typical at 156.25MHz (12kHz–20MHz bandwidth).

Applications

• Networking systems
• Ethernet interface circuits

Procurement Notes

Verify the ordering suffix 'LEX' confirms tape and reel packaging for the commercial grade variant. Confirm the component meets Pb-free and Green specifications as indicated in the datasheet ordering information. Ensure the application environment remains within the specified commercial operating temperature range.

Selection Notes

Select this component when three differential LVPECL outputs are required for Ethernet applications. Choose between 3.3V or 2.5V supply configurations based on system power requirements. Use the NA_SEL and NB_SEL pins to configure specific output frequencies from the supported set. Ensure proper power supply filtering with 0.1μF bypass capacitors for optimal jitter performance.

Part Context

This part belongs to Pericom’s HiFlex family of high-performance clock solutions, now manufactured by Diodes Incorporated. It is specifically optimized for generating Ethernet reference clocks with low phase noise characteristics suitable for high-speed networking interfaces.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.