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Product Detailed Parameters
- Description：TUSB546AI-DCIRNQR
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Bulk
- 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：-40°C ~ 85°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 TUSB546AI-DCIRNQR is a USB Type-C DisplayPort Alternate Mode linear redriver and crosspoint switch manufactured by Texas Instruments. It supports data rates up to 8.1 Gbps for SuperSpeed USB and DP Alt Mode signals. The device operates within an ambient temperature range of -40°C to +85°C, classifying it as automotive grade (A). It utilizes a 40-pin WQFN package with dimensions of 6x4 mm. The component integrates I2C control for configuration and includes built-in equalization features to maintain signal integrity across high-speed interfaces.
Feature Summary
- Supports USB Type-C and DisplayPort Alternate Mode protocols
- Integrates linear redriver and crosspoint switching capabilities
- Features I2C programmable configuration registers
- Designed for automotive applications with extended temperature ratings
Applications
- Automotive infotainment systems requiring USB-C connectivity
- DisplayPort alternate mode signal conditioning in vehicle dashboards
- High-speed interface bridging in automotive electronic control units
Procurement Notes
Verify the specific suffix 'RNQR' corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the 'A' designation aligns with the intended automotive qualification standards for your specific application environment. Ensure compatibility with existing I2C bus configurations on the host board before finalizing procurement orders.
Selection Notes
Select this component when automotive-grade reliability is required for USB Type-C and DP Alt Mode signal integrity. It is suitable for designs needing integrated redriving and crosspoint switching in a compact footprint. Consider the 8.1 Gbps bandwidth limit when evaluating against higher-speed alternatives like the TUSB1046 series if future-proofing for 10Gbps is necessary.
Part Context
This part belongs to the TUSB546 family of USB Type-C linear redrivers. It shares functional similarities with the TUSB546I but offers an extended industrial/automotive temperature range. The device complements other TI interface solutions by providing signal conditioning for high-speed differential pairs in constrained space applications.
Replacement Considerations
The TUSB546I serves as a commercial-grade alternative with a limited temperature range. For higher speed requirements, the TUSB1046 series provides 10Gbps support. Verify pinout compatibility and I2C addressing when substituting these parts in existing designs.
