TUSB1046-DCI - 10Gbps USB Type-C DP Alt Mode Redriver | TI
N.º da peça: TUSB1046-DCI ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.9 | $4,90 |
| 10 | $4.41 | $44,10 |
| 100 | $3.92 | $392,00 |
| 500 | $3.53 | $1.765,00 |
| 1.000 | $3.14 | $3.140,00 |
TUSB1046-DCI Visão geral
A redriver is a signal-conditioning integrated circuit that compensates for inter-symbol interference (ISI) by amplifying and equalizing high-speed serial data without retiming it. In the power-management and signal-chain hierarchy, a linear redriver sits between a USB/DisplayPort source PHY and the USB Type-C connector, restoring signal amplitude lost across PCB traces and cables. Unlike retimers, linear redrivers preserve the original signal waveform shape, which makes them protocol-agnostic and simple to design in.
Key features include support for USB 3.1 Gen 2 at 10 Gbps, DisplayPort 1.4 at 8.1 Gbps per lane, and several selectable levels of receive linear equalization that compensate for cable and board trace loss. The crosspoint switching architecture enables the VESA DisplayPort Alt Mode on USB Type-C Standard Version 1.1 configurations C, D, E, and F, allowing a single USB Type-C port to carry both USB 3.x data and DP video over the same four super-speed lanes.
The linear (protocol-agnostic) architecture means the device can also support other USB Type-C Alt Modes beyond DisplayPort. Because equalization is linear and analog, no protocol handshake or configuration firmware is required for the high-speed path; control comes from straightforward GPIO/strap settings such as the channel and mode selection pins.
Typical applications include dock hosts, notebook and tablet USB Type-C ports, motherboards with USB Type-C DisplayPort Alt Mode output, and industrial displays where a host must deliver both 10 Gbps USB 3.1 data and 4K DisplayPort video through one reversible connector.
When designing with this device, budget trace loss carefully: the receive linear equalization levels must be chosen to match the total channel loss at 10 Gbps, and the 40-WQFN thermal pad should be well-grounded for signal integrity.
This page synthesizes distributor pricing, drop-in alternatives, pinout guidance, and practical design notes not found in the manufacturer datasheet, providing information gain for engineers selecting USB Type-C redriver switches.
Alternativas drop-in para TUSB1046-DCI — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
TUSB1046A-DCI
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TUSB1046I-DCI
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TUSB546A-DCI
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
TUSB1046-DCI Especificações
| Função | USB Type-C DisplayPort Alt Mode linear redriver crosspoint switch |
| Max USB Data Rate | 10 Gbps (USB 3.1 Gen 2) |
| Max DisplayPort Data Rate | 8.1 Gbps (DisplayPort 1.4) |
| Supported DP Alt Mode Configurations | C, D, E, F (VESA DisplayPort Alt Mode on USB Type-C Standard Version 1.1) |
| Equalization | Several levels of receive linear equalization (ISI compensation) |
| Tensão de alimentação | 3.3 V (single supply) |
| Port Type | Downstream facing port (Host / source) |
| Architecture | Linear, protocol-agnostic redriver with crosspoint switch |
| Encapsulamento | 40-WQFN (6x4 mm) |
| Tipo de montagem | Surface Mount |
| Operating Temperature Range (industrial) | Industrial temperature range available (TUSB1046I-DCI variant) |
| Evaluation Module | TUSB1046EVM |
| Typical PD Controller Companion | TPS65987D |
Guia de Configuração de Pinos do TUSB1046-DCI 40-wqfn (6x4 mm)
Configuração de pinos para TUSB1046-DCI (pacote 40-wqfn (6x4 mm)). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para TUSB1046-DCI.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
TUSB1046-DCI é adequado para 6 aplicaçãos: USB Type-C Docking Station Host, Notebook and Tablet USB Type-C Ports, Desktop Motherboards with USB Type-C, USB-C Monitors and Industrial Displays, Development and Validation Platforms, Test and Measurement Adapters.
USB Type-C Docking Station Host
In a USB Type-C dock host, the TUSB1046-DCI sits between the SoC/PHY super-speed lanes and the Type-C connector, implementing VESA DP Alt Mode configurations C, D, E, and F so a single reversible port carries both 10 Gbps USB 3.1 Gen 2 data and 8.1 Gbps-per-lane DisplayPort 1.4 video. Its several levels of receive linear equalization restore eye margins after long motherboard traces to the connector, which is where ISI loss accumulates most in dock PCBs. Placed directly upstream of the connector with short, impedance-controlled 90-ohm differential pairs and paired with a USB PD controller such as the TPS65987D for orientation and mode switching, the device delivers protocol-agnostic conditioning with no firmware on the high-speed path, simplifying dock firmware certification.
Recomendado
Notebook and Tablet USB Type-C Ports
For notebook and tablet motherboards, the TUSB1046-DCI enables a downstream-facing host port to output USB 3.1 at 10 Gbps and DisplayPort 1.4 at 8.1 Gbps through the same Type-C connector. Long PCB traces from the application processor to the connector edge introduce board loss that the device's receive linear equalization compensates, preserving compliant eye diagrams at Gen 2 rates. Because the redriver is linear and protocol-agnostic, no protocol handshake is needed on the data path; mode selection between USB and DP lanes is handled via the crosspoint switch control pins driven by the platform's PD controller. The 40-WQFN (6x4 mm) package on a single 3.3 V supply fits the tight space and power budget of thin mobile form factors.
Recomendado
Desktop Motherboards with USB Type-C
Desktop motherboards increasingly expose rear-panel and front-panel USB Type-C ports that must support both USB 3.1 Gen 2 (10 Gbps) and DisplayPort Alt Mode output from integrated graphics. The TUSB1046-DCI provides the lane switching and redriving for configurations C, D, E, and F of VESA DP Alt Mode Version 1.1, routing either the USB3 or DP pair of super-speed lanes to the connector depending on the attached device. Its linear equalization offsets the loss of front-panel cabling and motherboard routing, which can otherwise consume most of the 10 Gbps eye budget. Operating from a 3.3 V rail already present on desktop boards, it requires no additional supply, and strap-selectable equalization settings let board makers tune for short rear-panel versus long front-panel trace lengths.
Recomendado
USB-C Monitors and Industrial Displays
USB-C monitors and industrial displays receiving video over a single Type-C cable benefit from the TUSB1046-DCI in the uplink path, where DisplayPort 1.4 lanes arrive at 8.1 Gbps per lane through long cable runs. The device's receive linear equalization compensates for cable insertion loss and inter-symbol interference, extending the usable cable length at full 4K-class bandwidths. Its protocol-agnostic linear architecture passes the DP signal without retiming, avoiding added latency and supporting AUX and HPD signaling needed for link training. In industrial displays exposed to wider ambient temperatures, the TUSB1046I-DCI industrial-range variant in the identical 40-WQFN package can be substituted without any PCB or layout change, preserving the design across commercial and industrial product lines.
Recomendado
Development and Validation Platforms
The TUSB1046EVM evaluation module, documented in TI's TUSB1046 USB Type-C Enabler Evaluation literature, lets engineers validate 10 Gbps USB 3.1 Gen 2 and 8.1 Gbps DisplayPort 1.4 signal integrity before committing a board design. TI E2E forum threads reference the EVM for USB 3.1 Gen 2 SI compliance testing, and customer measurements confirm the TUSB1046 achieves 10 Gbps over cables where lower-rate redrivers fail. Using the EVM, designers can sweep the several receive linear equalization levels against their own channel loss budgets, capture eye diagrams at the connector, and verify DP Alt Mode configurations C through F switching behavior with a PD controller such as the TPS65987D. This de-risks trace-length and connector choices early in the design cycle.
Recomendado
Test and Measurement Adapters
Protocol analyzers, capture pods, and USB Type-C test adapters need to route and condition 10 Gbps USB 3.1 and 8.1 Gbps DisplayPort lanes without altering signal timing, making a linear redriver the correct choice over a retimer. The TUSB1046-DCI's protocol-agnostic linear equalization preserves waveform shape so downstream capture and compliance testing remain representative of the original link. Its crosspoint switch supports the VESA DP Alt Mode configurations C, D, E, and F required to emulate real host behavior, and strap-controlled equalization lets instrument firmware select conditioning per fixture. The 40-WQFN (6x4 mm) footprint and 3.3 V single supply integrate easily into dense instrument front ends where board area and rail count are constrained.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TUSB1046-DCI — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TUSB1046A-DCI | TUSB1046I-DCI | TUSB546A-DCI |
|---|---|---|---|---|
| Package | 40-WQFN (6x4 mm) | 40-WQFN (6x4 mm) - same | 40-WQFN (6x4 mm) - same | 40-WQFN (6x4 mm) - same family footprint |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Max USB Data Rate | 10 Gbps (USB 3.1 Gen 2) | 10 Gbps | 10 Gbps | 10 Gbps |
| Max DisplayPort Rate | 8.1 Gbps (DP 1.4) | 8.1 Gbps (DP 1.4) | 8.1 Gbps (DP 1.4) | 8.1 Gbps (DP 1.4) |
| Pin-to-Pin Compatible with TUSB1046-DCI | Yes (baseline) | Yes (confirmed by TI E2E) | Yes | Not guaranteed - verify before use |
Principais diferenciais
- Full DP Alt Mode configuration support (C, D, E, F) (vs TUSB1002)
- Linear protocol-agnostic architecture (vs Retimer-based alternatives)
- Pin-to-pin upgrade path and industrial variant (vs TUSB1046A-DCI / TUSB1046I-DCI)
Notas de projeto
The TUSB1046-DCI provides several levels of receive linear equalization, and the correct level depends on total channel loss at 10 Gbps (trace length plus connector and any cable stubs). Use the TUSB1046EVM to sweep equalization settings with eye-diagram capture at the connector, as TI E2E forum users did to demonstrate 10 Gbps compliance. Under-equalizing fails Gen 2 eye masks at 10 Gbps; over-equalizing adds ringing. Keep the redriver close to the connector side so the equalizer sees the full board loss it is meant to compensate.
Route all four super-speed differential pairs as 90-ohm (USB) / 100-ohm (DP) controlled-impedance pairs with matched intra-pair skew. Because the device is a crosspoint switch implementing DP Alt Mode configurations C, D, E, and F, all lane pairs to the connector must meet the same length-matching tolerance regardless of which mode is active. Place the 3.3 V decoupling capacitors (10 uF bulk plus 0.1 uF per supply pin) close to the pins, and solder the exposed thermal pad of the 40-WQFN (6x4 mm) to a solid ground plane with multiple vias.
The TUSB1046-DCI is a linear redriver, not a retimer: it cannot clean badly distorted signals or fix protocol errors, so it must not be treated as a substitute for good layout at 10 Gbps. If the DP0, AUX, or HPDIN pins are unused in your design, TI E2E forum guidance on unused DP pins should be followed for strap/termination rather than left floating arbitrarily. Also note the TUSB1046 supports UHBR3-class DP rates only; designs needing UHBR10 must move to the TUSB1146 family, which is not pin-compatible.
Informações de conformidade
Compliance data was not present in the verified web data. The TUSB1046-DCI is not marketed as AEC-Q100 qualified; for automotive gauge applications, consult TI directly (see TI E2E thread on automotive substitutes).
