TUSB1142RNQR

Overview

The TUSB1142RNQR is a Texas Instruments adaptive linear retimer designed for USB Type-C applications, supporting data rates up to 10 Gbps. It integrates a 1:2 DeMUX or 2:1 Mux architecture to facilitate connections between host systems and USB-C receptacles or devices. The component operates on a single 3.3V supply voltage and utilizes a 40-pin WQFN package. Key electrical specifications include an operating temperature range from -40°C to +85°C. It supports USB 3.2 Gen1 (5 Gbps) and Gen2 (10 Gbps) standards, along with low-power states such as Disconnect, U1, U2, and U3.

Feature Summary

• Innovative Adaptive Equalizer (AEQ) that automatically determines optimal Inter-Symbol Interference compensation settings to enhance interoperability.
• Configurable receiver equalization offering either adaptive or fixed settings for ports facing the USB connector.
• Selectable transmitter output between linear drive and limited retimer modes for system-side ports.
• Advanced power management capabilities with distinct active, disconnect, and disabled state consumption levels.

Applications

• Laptop and desktop computer mainboards
• USB docking stations and hubs
• External data storage enclosures
• Networking peripherals and printers

Procurement Notes

Verify the specific suffix 'RNQR' against the manufacturer's official datasheet to confirm the reel packaging quantity and tape-and-reel specifications. Ensure the order matches the exact pinout and thermal pad requirements defined in the mechanical drawings. Cross-reference the RoHS compliance status and lead times directly with authorized distributors, as these parameters are subject to change without notice.

Selection Notes

Select this component when designing USB Type-C interfaces requiring 10 Gbps signal integrity over lossy traces. The adaptive equalization feature reduces manual tuning efforts compared to fixed-equalization redrivers. Consider the 40-pin WQFN footprint for space-constrained layouts. Verify compatibility with the system's I2C configuration lines and ensure the 3.3V power rail meets the current demands of the active mode operation.

Part Context

This device belongs to the TUSB1142 series of USB Type-C linear retimers. It serves as a critical signal conditioning component in high-speed USB 3.2 Gen2 implementations. The RNQR variant specifically denotes the reel-packaged version intended for automated surface-mount assembly processes in mass production environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult the manufacturer's latest selection guide for direct replacements or evaluate family members with similar pinouts and electrical characteristics if availability is constrained.