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The TUSB501 is a 3rd generation 3.3-V USB 3.0 single-channel redriver. When 5 Gbps SuperSpeed USB signals travel across a PCB or cable, signal integrity degrades due to loss and inter-symbol interference. The TUSB501 recovers incoming data by applying equalization that compensates channel loss, and drives out signals with a high differential voltage. This extends the possible channel length, and enables systems to pass USB 3.0 compliance. The TUSB501 advanced state machine makes it transparent to hosts and devices.
After power up, the TUSB501 periodically performs receiver detection on the TX pair. If it detects a SuperSpeed USB receiver, RX termination becomes enabled, and the TUSB501 is ready to redrive.
The receiver equalizer has three gain settings that are controlled by pin EQ: 3 dB, 6 dB, and 9 dB. This should be set based on amount of loss before the TUSB501. Likewise, the output driver supports configuration of De-Emphasis and Output Swing (pins DE and OS). These settings allow the TUSB501 to be flexibly placed in the SuperSpeed USB path, with optimal performance.
Over previous generations, the TUSB501 features reduced power in all link states, a stronger OS option, improved receiver equalization settings, and an intelligent LFPS Controller. This controller senses the low frequency signals and automatically disables driver de-emphasis, for full USB 3.0 compliance.
The TUSB501 is packaged in a small 2 × 2 mm QFN, and operates through an industrial temperature range of –40°C to 85°C.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | USB 3.0 Single Channel Redriver with Equalization datasheet (Rev. A) | Aug 2, 2013 | |
| Application note | High-Speed Layout Guidelines for Signal Conditioners and USB Hubs (Rev. A) | PDF | HTML | Jan 8, 2026 | |
| Technical article | How to deliver clean USB Type-C™ signals | PDF | HTML | Aug 7, 2017 | |
| Technical article | How to correct 10Gbps performance issues with a USB Type-C™ active redriver multip | PDF | HTML | Dec 1, 2016 | |
| Technical article | Why use a USB Type-C™ redriver in your personal electronics designs? | PDF | HTML | Oct 25, 2016 | |
| Technical article | How USB will enable the future of automotive infotainment | PDF | HTML | Oct 8, 2015 | |
| EVM User's guide | TUSB501-EVM | Oct 24, 2013 |
For additional terms or required resources, click any title below to view the detail page where available.
This USB 2.0, USB 3.0 redriver dongle design connects directly to a host USB port and redrives the high-speed or SuperSpeed signals to the downstream port to enable a long cable connection to a SuperSpeed or high-speed device. The dongle is powered from the VBUS pin provided by the host and passes (...)
This USB 2.0, USB 3.0 Re-driver Dongle Design connects directly to a Host USB port and re-drives the High-Speed or SuperSpeed signals to the downstream port to enable a long cable connection to a SuperSpeed or High-Speed device.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WSON (DRF) | 8 | Ultra Librarian |
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