DS80PCI402SQ/NOPB

Signal Buffers, Repeaters, Splitters Overview

The DS80PCI402SQ/NOPB is a four-lane PCI Express repeater designed for data rates of 2.5 Gbps, 5.0 Gbps, and 8.0 Gbps. It integrates equalization and de-emphasis capabilities to extend signal reach in high-speed serial links. The device operates within an ambient temperature range of -40°C to +85°C and utilizes a WQFN-54 package. It supports multiple power supply voltages including 2.5 V and 3.3 V, with a typical operating current of 192 mA. This component serves as a bridge to maintain signal integrity across PCB traces or cables in PCIe architectures.

Signal Buffers, Repeaters, Splitters Feature Summary

• Supports three distinct PCI Express data rates: 2.5 Gbps, 5.0 Gbps, and 8.0 Gbps.
• Integrates adaptive equalization and programmable de-emphasis to compensate for channel loss.
• Provides four independent bidirectional lanes for parallel signal transmission.
• Compatible with standard PCI Express signaling specifications.

Signal Buffers, Repeaters, Splitters Applications

• Extending trace length on motherboards and backplanes for PCIe connectivity.
• Signal regeneration in server and storage system interconnects.
• High-performance computing systems requiring reliable PCIe lane extension.
• Industrial equipment utilizing PCIe interfaces over extended distances.

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix 'SQ' corresponds to the required moisture sensitivity level and tape-and-reel packaging configuration for your assembly line. Confirm that the 'NOPB' designation indicates lead-free and RoHS compliance according to current Texas Instruments standards. Ensure the ordering part number matches the exact package outline and pinout requirements of your design.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when four-channel PCI Express signal regeneration is required at speeds up to 8.0 Gbps. Compare against the DS80PCI800 if eight channels are needed instead of four. Consider the DS80PCI402EVK/NOPB evaluation kit for initial circuit validation and performance testing before finalizing the hardware design.

Signal Buffers, Repeaters, Splitters Part Context

This device belongs to the DS80PCI800 series family of PCI Express repeaters from Texas Instruments. It shares functional similarities with the DS50PCI402 but offers support for the higher 8.0 Gbps data rate associated with PCIe Gen 3. The SQ/NOPB variant specifies the commercial-grade temperature range and environmentally friendly packaging options available for mass production.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Publicly confirmed substitute part numbers include DS80PCI402SQE/NOPB and DS80PCI402. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution. Consult official datasheets to ensure the alternative variant meets the specific thermal and mechanical requirements of the existing footprint.