871004AGI-04LF

Overview

The Renesas 871004AGI-04LF is a high-performance PCI Express jitter attenuator and multiplexer IC. It operates at a maximum frequency of 640MHz, designed for differential-to-0.7V differential signal conversion in PCIe systems. The device features a single circuit configuration housed in a tube-packaged surface-mount package. It supports input frequencies up to 640MHz with an output ratio of 2:5. The component functions as a zero-delay buffer and multiplexer, utilizing a PLL for clock generation. It is rated for operation within a temperature range of -40°C to 85°C and requires a supply voltage between 3.135V and 3.465V.

Feature Summary

• High-performance jitter attenuation specifically engineered for PCI Express system applications
• Integrated differential-to-0.7V differential signal conversion capability
• Combines zero-delay buffering and multiplexing functions within a single IC

Applications

• PCI Express system timing and clock distribution
• Jitter attenuation for high-speed data interfaces
• Differential signal conditioning in server infrastructure

Procurement Notes

This component is officially listed as obsolete and no longer manufactured by Renesas Electronics Corporation. Verification of availability must rely on distributor inventory or secondary market sources rather than direct manufacturer production. Buyers should confirm the authenticity of stock claims and check for valid substitute part numbers before procurement. Ensure that any available units meet the original RoHS3 compliance specifications and verify the moisture sensitivity level (MSL 3) handling requirements during storage and assembly processes.

Selection Notes

Select this component only if legacy compatibility with specific 640MHz PCIe jitter attenuation requirements is necessary. Due to its obsolete status, alternative solutions such as the 8T49N241-998NLGI may be considered for new designs. Evaluate the 2:5 input-to-output ratio and 0.7V differential swing against current system constraints. Confirm that the 28-TSSOP package dimensions and thermal characteristics align with the target PCB layout and environmental operating conditions.

Part Context

The 871004AGI-04LF belongs to the ICS871004A family of timing devices from Renesas. It serves as a specialized solution for managing clock integrity in PCI Express architectures. The device integrates multiple timing functions into one package, reducing board space compared to discrete solutions. Its design focuses on minimizing jitter while maintaining precise frequency multiplication ratios essential for stable high-speed data transmission.

Replacement Considerations

Public confirmed substitute part number: 8T49N241-998NLGI. Verify functional equivalence regarding jitter performance and interface compatibility before replacement.