Overview
The TUSB1046A-DCI, produced by Texas Instruments, is a VESA USB Type-C™ Alt Mode redriving switch. This device supports USB 3.1 data rates up to 10 Gbps and DisplayPort 1.4 up to 8.1 Gbps for downstream facing ports (Host). It is designed to support configurations C, D, E, and F from the VESA DisplayPort Alt Mode on USB Type-C Standard Version 1.1. The TUSB1046A-DCI is a protocol-agnostic linear redriver that compensates for inter-symbol interference (ISI) due to cable and board trace loss, ensuring reliable high-speed data transmission.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | WQFN (RNQ) | - |
| Pins | 40 | - |
| Operating Temperature Range | 0 to 70°C (Commercial), -40°C to 85°C (Industrial) | °C |
| Supply Voltage | 3.3 V | V |
| USB 3.1 Data Rate | Up to 10 Gbps | Gbps |
| DisplayPort 1.4 Data Rate | Up to 8.1 Gbps (HBR3) | Gbps |
| Equalization | Up to 14 dB | dB |
| Package Size | 4 mm x 6 mm, 0.4 mm pitch | mm |
| Junction-to-Ambient Thermal Resistance | 37.6 °C/W | °C/W |
Key Features
- USB Type-C crosspoint switch supporting USB 3.1 SSP + 2 DisplayPort lanes and 4 DisplayPort lanes
- Supports USB 3.1 Gen 1/Gen 2 up to 10 Gbps and DisplayPort 1.4 up to 8.1 Gbps (HBR3)
- VESA® DisplayPort Alt mode DFP redriving crosspoint switch supporting configurations C, D, E, and F
- Ultra-low-power architecture
- Linear redriver with up to 14 dB equalization
- Transparent to DisplayPort link training
- Automatic LFPS de-emphasis control to meet USB 3.1 certification requirements
- Configuration through GPIO or I2C
- Hot-plug capable
- Intel proprietary DCI capability on USB Type-C for closed chassis debugging
Applications
- Tablets
- Notebooks
- Desktops
- Docking stations
Q & A
- What is the TUSB1046A-DCI used for?
The TUSB1046A-DCI is used as a VESA USB Type-C™ Alt Mode redriving switch, supporting high-speed data transmission for USB 3.1 and DisplayPort 1.4.
- What are the supported data rates for USB 3.1 and DisplayPort?
The device supports USB 3.1 data rates up to 10 Gbps and DisplayPort 1.4 up to 8.1 Gbps (HBR3).
- What configurations does the TUSB1046A-DCI support?
The device supports configurations C, D, E, and F from the VESA DisplayPort Alt Mode on USB Type-C Standard Version 1.1.
- What is the operating temperature range of the TUSB1046A-DCI?
The commercial version operates from 0°C to 70°C, while the industrial version operates from -40°C to 85°C.
- How is the device configured?
The device can be configured through GPIO or I2C.
- Is the TUSB1046A-DCI hot-plug capable?
- What is the purpose of the Intel proprietary DCI capability?
The Intel proprietary DCI capability is for closed chassis debugging on USB Type-C.
- What kind of equalization does the TUSB1046A-DCI provide?
The device provides linear equalization up to 14 dB to compensate for inter-symbol interference (ISI).
- What is the package size of the TUSB1046A-DCI?
The device comes in a 4 mm x 6 mm, 0.4 mm pitch WQFN package.
- What are some common applications of the TUSB1046A-DCI?
Common applications include tablets, notebooks, desktops, and docking stations.
