PI6LC48P0401LIEX

Overview

The PI6LC48P0401 is a four-output LVPECL synthesizer designed for Ethernet reference clock generation. It supports output frequencies of 156.25MHz, 125MHz, and 62.5MHz using a 25MHz crystal or single-ended LVCMOS/LVTTL input. The device achieves typical RMS phase jitter of 0.23ps at 156.25MHz (1.875MHz–20MHz) with a 25MHz crystal. It operates on full 3.3V or 2.5V supply modes within an ambient temperature range of -40°C to 85°C.

Feature Summary

• Four differential LVPECL output pairs
• Selectable 25MHz crystal oscillator interface or LVCMOS/LVTTL single-ended clock input
• Supports 156.25MHz, 125MHz, and 62.5MHz output frequencies via N_SEL pins
• Typical RMS phase jitter of 0.23ps at 156.25MHz (1.875MHz–20MHz bandwidth)

Applications

• Networking systems

Procurement Notes

Verify the ordering suffix against the datasheet: 'LE' indicates Pb-free/Green packaging in a 24-pin TSSOP for commercial use, while 'LIE' denotes industrial temperature range. Adding an 'X' suffix specifies tape and reel packaging. Confirm package type and operating temperature grade match system requirements before procurement.

Selection Notes

Select based on required output frequency and supply voltage. The device supports both 3.3V and 2.5V modes. Frequency selection is determined by N_SEL pin states: 00 for 156.25MHz, 01 for 125MHz, and 10 for 62.5MHz. Ensure power supply filtering techniques are applied, including separate VDD, VDDA, and VDDO connections with appropriate bypass capacitors, to maintain optimal jitter performance.

Part Context

The PI6LC48P0401 belongs to Pericom’s HiFlex family of high-performance clock solutions. It utilizes proprietary low phase noise VCO technology to achieve ultra-low phase jitter, making it suitable for Ethernet interfaces in various systems. The component is manufactured by Diodes Incorporated following their acquisition of Pericom Semiconductor Corporation.

Replacement Considerations

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