TUSB1142IRNQR

Overview

The TUSB1142IRNQR is a 10 Gbps USB Type-C adaptive linear redriver switch manufactured by Texas Instruments. It integrates a 1:2 demultiplexer or 2:1 multiplexer for USB Type-C applications, supporting USB 3.2 Gen2 (10Gbps) and Gen1 (5Gbps) data rates. The device operates on a single 3.3V supply within an operating temperature range of -40°C to +85°C. Key electrical parameters include a minimum supply voltage of 3V and a maximum of 3.6V. It features 16 equalization settings providing up to 12dB compensation at 5GHz. Power consumption is specified as 550mW in active mode, 1.5mW in disconnect state, and 0.130mW when disabled.

Feature Summary

• Innovative Adaptive Receiver Equalization (AEQ) automatically determines optimal ISI compensation settings between the device and connected USB equipment to enhance interoperability.
• Configurable receiver equalization offers a choice between adaptive or fixed settings for ports facing the USB connector, while system port drivers can be selected as linear or limited redrivers.
• Supports advanced USB power management states including Disconnect, U1, U2, and U3, ensuring efficient power usage across various operational modes.

Applications

• Laptops and desktop computers
• Docking stations
• Data storage devices
• Networking peripherals and printers

Procurement Notes

Verify the specific ordering suffix against official Texas Instruments documentation to confirm package type and tape/reel specifications. Ensure compatibility with I2C configuration levels, which can be set to 1.8V or 3.3V via pin strapping. Confirm moisture sensitivity level handling requirements during assembly to maintain component integrity.

Selection Notes

Select this component for designs requiring signal integrity restoration in high-speed USB Type-C links. The adaptive equalization feature reduces manual tuning efforts compared to fixed equalizers. Verify that the host or device PCB trace lengths necessitate redriver assistance before implementation. Ensure the system design accommodates the required 3.3V single-supply voltage rail.

Part Context

This part belongs to the TUSB1142 series of USB interface ICs designed specifically for USB Type-C ecosystems. It serves as a bridge between hosts/devices and USB-C connectors, addressing signal degradation over long traces. The device complements other USB controllers by handling physical layer signal conditioning rather than protocol processing.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Texas Instruments application notes for family-compatible alternatives if pinout or functionality adjustments are required.

FAQ

How does the Adaptive Receiver Equalization (AEQ) function?

AEQ automatically determines the best Inter-Symbol Interference (ISI) compensation settings between the TUSB1142 and the inserted USB device, improving link reliability without manual configuration.

What power states does the TUSB1142 support?

The device supports USB 3.2 low-power states including Disconnect, U1, U2, and U3, allowing for optimized power consumption in portable and stationary systems.

Can the I2C interface operate at different voltage levels?

Yes, the I2C interface allows selection between 1.8V and 3.3V logic levels through pin strapping, providing flexibility for various system controller voltages.