5V41235NLG

Overview

The 5V41235NLG is a PCIe Gen2/Gen3 compliant clock generator manufactured by Renesas Electronics. It features two differential HCSL output pairs capable of spread-spectrum operation to reduce electromagnetic interference (EMI). The device supports fixed output frequencies of 25 MHz, 100 MHz, and 125 MHz, with the MLF package variant also supporting 200 MHz. It operates on a single 3.3V supply voltage within a range of 3.135V to 3.465V. Key performance metrics include cycle-to-cycle jitter less than 100 ps and output-to-output skew under 50 ps.

Feature Summary

• PCIe Gen2/Gen3 compliant spread-spectrum clock generation
• Two differential HCSL output pairs with LVDS termination capability
• Fixed output frequencies: 25 MHz, 100 MHz, 125 MHz; 200 MHz available in MLF package
• Low jitter performance: <100 ps cycle-to-cycle, <50 ps output-to-output skew

Applications

• PCI Express (PCIe) Gen2 and Gen3 system clocking
• Embedded communication systems requiring EMI reduction
• Ethernet applications utilizing 25 MHz or 125 MHz outputs

Procurement Notes

Verify the specific suffix for the 5V41235NLG series to confirm package type and temperature rating. The 'N' typically denotes industrial temperature range (-40°C to +85°C), while 'I' may indicate commercial range (0°C to +70°C). Confirm moisture sensitivity level (MSL 3) requirements for surface mount assembly processes.

Selection Notes

Select the 5V41235NLGI8 variant for the 16-VFQFPN (MLF) package if 200 MHz output frequency is required. Choose the TSSOP package variant for 25 MHz, 100 MHz, and 125 MHz options. Ensure the design accommodates the 3.3V supply voltage and utilizes the spread-spectrum pin selection method for EMI compliance without software configuration.

Part Context

The 5V41235 belongs to the IDT/Renesas PCIe synthesizer family. It serves as a direct replacement for legacy clock generators in high-speed serial link designs. The device simplifies board layout by integrating spread-spectrum functionality and offering small footprint packages like the 16-pin TSSOP and VFQFPN.