SN75LVPE5412RUAT

Overview

The SN75LVPE5412 is a four-channel linear redriver with an integrated 1:2 demultiplexer designed for PCIe 5.0 and other interfaces up to 32Gbps. It operates on a single 3.3V supply, consuming 720mW in active mode. The device features continuous-time linear equalizers (CTLE) providing up to 24dB boost at 16GHz. Key electrical parameters include a propagation delay of 90ps, additive random jitter of 55fs RMS, and differential return loss of -10dB from 8-16GHz. It supports x4, x8, and x16 bus widths and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Protocol agnostic linear redriver compatible with PCIe, UPI, CCIX, NVLink, DisplayPort, SAS, SATA, and XFI.
• Integrated 1:2 demultiplexer allows flexible lane mapping for x4, x8, and x16 configurations.
• Internal voltage regulator provides immunity to supply noise for high-speed data paths.
• Automatic receiver detection ensures seamless support for PCIe link training.

Applications

• Desktop PC and motherboard
• Rack server, microserver, and tower server
• High performance computing and hardware accelerator
• Data storage and network attached storage
• Storage area network (SAN) and host bus adapter (HBA) card

Procurement Notes

Verify the specific ordering suffix RUAT corresponds to the 42-pin WQFN package. Confirm that the component meets the required operating temperature range of -40°C to 85°C. Ensure compatibility with the system's 3.3V power rail and check if SMBus/I2C configuration is needed versus pin-strapped operation. Validate that the package dimensions fit the PCB layout constraints.

Selection Notes

Select this component when supporting PCIe 5.0 or higher speed interfaces up to 32Gbps is required. It is suitable for applications needing lane demultiplexing and signal conditioning. Consider the low power consumption and lack of heat sink requirement for thermal management. Evaluate the need for SMBus/I2C configurability versus fixed pin control based on system design complexity.

Part Context

This device belongs to Texas Instruments' family of high-speed linear redrivers and repeaters. It complements the SN75LVPE5421 multiplexer for complete lane switching solutions. The series addresses signal integrity challenges in high-speed digital interconnects by compensating for channel losses and maintaining signal quality over long traces.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs before considering alternative components.

FAQ

How is the demultiplexer path selected?

The demux selection between Port A and Port B is controlled by the SEL pin. In Pin Mode, a logic low selects Port A and a logic high selects Port B.

What is the maximum equalization boost provided?

The device provides up to 24dB of equalization boost at 16GHz when configured to the maximum setting (EQ Index 19).

Can the device be configured via software?

Yes, the device supports configuration via SMBus/I2C secondary mode, allowing individual channel programming for equalization and flat gain.