PI6LC48H02LIE

Overview

The PI6LC48H02LIE is a clock generator compliant with PCI Express 4.0/3.0/2.0/1.0 and Ethernet standards, designed for PC or embedded systems. It accepts a 25MHz crystal or clock input and generates two pairs of differential HCSL outputs at selectable frequencies: 25MHz, 100MHz, 125MHz, or 200MHz. The device operates on a 3.3V ±10% supply voltage within an industrial temperature range (-40°C to +85°C). Key electrical specifications include a typical cycle-to-cycle jitter of 35ps and RMS phase jitter of 0.32ps at 100MHz (12kHz-20MHz bandwidth). It utilizes Diodes' patented PLL technology and is housed in a 16-pin TSSOP package.

Feature Summary

• PCIe 4.0/3.0/2.0/1.0 compliant clock generation
• Two differential HCSL output pairs with selectable frequencies (25, 100, 125, 200 MHz)
• Low jitter performance: 35ps cycle-to-cycle (typ), 0.32ps RMS phase jitter @ 100MHz
• Industrial temperature range (-40°C to +85°C) and 3.3V supply operation

Applications

• PCI Express compliant system designs
• PC motherboard clock distribution
• Embedded networking systems requiring PCIe or Ethernet clocks

Procurement Notes

Verify the component against the official datasheet DS40207 Rev 3-2 to confirm pinout compatibility and electrical parameters. Ensure that the specific ordering suffix matches the required packaging format, as variations exist between tape/reel and tube configurations. Cross-reference the manufacturer's quality definitions for RoHS and Halogen-free compliance requirements before finalizing procurement.

Selection Notes

Select this component when a low-jitter, multi-frequency clock source is required for PCIe interfaces. The frequency selection is determined by external S0 and S1 pins; verify logic levels against the application's control signals. Ensure the design accommodates the recommended external components, including a 25MHz crystal with appropriate load capacitance and termination resistors for the HCSL outputs.

Part Context

This part belongs to the PI6LC48 family of HiFlex clock generators from Diodes Incorporated. It is specifically engineered to meet the stringent timing requirements of modern high-speed serial interfaces like PCIe. The 'LIE' suffix indicates the 16-pin TSSOP package, lead-free construction, and tape/reel packaging configuration.

Replacement Considerations

Direct replacements must match the 16-pin TSSOP footprint and support the same I2C or pin-selectable frequency options. Verify that alternative devices offer comparable jitter performance (specifically <35ps cycle-to-cycle) and are qualified for the -40°C to +85°C industrial temperature range.