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Product Detailed Parameters
- Description：5GBPS TYPEC DP ALT MODE REDRIVER
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Buffer, ReDriver
- Applications：USB
- Input：Differential
- Output：Differential
- Data Rate (Max)：8.1Gbps
- Number of Channels：2
- Delay Time：-
- Signal Conditioning：Input Equalization, Output De-Emphasis
- Voltage - Supply：3V ~ 3.6V
- Current - Supply：-
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：40-WFQFN Exposed Pad
- Supplier Device Package：40-WQFN (6x4)
- Capacitance - Input：10 pF
- Grade：-
- Qualification：-
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Overview
The TUSB546A-DCIRNQT is a USB Type-C and DisplayPort Alt Mode linear redriver and crosspoint switch manufactured by Texas Instruments. It supports data rates up to 8.1 Gbps for Super Speed (SS) USB signals. The device operates within a supply voltage range of 3 V to 3.6 V, with a typical operating voltage of 3.3 V. It features an I2C interface for configuration and control. The component is housed in a WQFN-40 package and is rated for an extended industrial temperature range from -40°C to +85°C. It complies with USB-C 1.0 standards and includes DFP port type support.
Feature Summary
- Linear redriver technology designed to restore signal integrity for high-speed USB Type-C and DisplayPort Alt Mode connections.
- Integrated crosspoint switch functionality enabling flexible routing between multiple input and output channels.
- Configurable via I2C interface for adaptive equalization and system optimization.
- Supports multi-protocol operation including Super Speed USB and DisplayPort Alternate Mode.
Applications
- Enabling HDMI over Type-C implementations
- DisplayPort Alternate Mode (DP Alt Mode) signal conditioning
- USB Type-C hub and docking station designs
- High-speed peripheral connectivity solutions
Procurement Notes
Verify the specific suffix RNQT indicates cut-tape packaging when ordering small quantities, as opposed to the reel variant. Confirm the extended temperature grade (-40°C to +85°C) matches your environmental requirements. Ensure I2C address configurations are compatible with your host controller. Check for recent Product Change Notifications (PCN) regarding manufacturing site updates or material changes before finalizing procurement plans.
Selection Notes
Select this component when designing systems requiring both USB Super Speed and DisplayPort Alt Mode signal regeneration on a single channel. The integrated crosspoint switch reduces board space compared to discrete solutions. Verify that the 3.3V logic levels align with your system's power domain. Consider the WQFN-40 thermal performance if high ambient temperatures are expected within the specified operating range.
Part Context
This part belongs to the TUSB546A-DCI series of USB Type-C linear redrivers. It serves as a signal conditioning solution for high-speed interfaces, complementing controllers like the TUSB1046A. The device addresses signal loss issues in PCB traces for USB 3.1 Gen 2 and DisplayPort 1.4 signals, ensuring compliance with electrical specifications for reliable data transmission.
Replacement Considerations
The TUSB546A-DCIRNQR is a functional equivalent with identical electrical characteristics but differs in packaging format (reel vs. cut tape). Other family members like the TUSB546 may offer similar functionality but require verification of temperature ranges and pin compatibility before substitution.
