TUSB211RWBR - 480 Mbps USB 2.0 Signal Conditioner | TI
MPN： TUSB211RWBR ✓ 啟用中TUSB211RWBR 概覽
A USB high-speed signal conditioner is an interface device placed within a USB 2.0 data path to improve signal quality across lossy interconnects. USB high-speed signaling uses differential data lines with significant bandwidth requirements, making cable length, connector transitions, PCB routing, and impedance discontinuities important system-level considerations. The TUSB211 belongs to the broader hierarchy of signal-processing interface ICs, interface ICs, and semiconductor devices designed to preserve data integrity between hosts, hubs, and USB peripherals.
The primary function of the TUSB211 is to restore a degraded differential signal by compensating for channel-induced loss and intersymbol interference. Its USB 2.0 high-speed capability permits operation at 480 Mbps, allowing a link to remain functional over channels that would otherwise suffer from reduced eye opening or communication errors. Because the signal-conditioning stage operates within the data path, placement and layout can determine how effectively it corrects the intended channel.
The RWB ordering code identifies the compact 12-X2QFN configuration used by TUSB211RWBR. Its small surface-mount package supports high-density PCB layouts, although accurate placement requires careful attention to differential-pair geometry, ground-return paths, and decoupling. The manufacturer product information lists the device as a USB 2.0 480-Mbps high-speed signal conditioner and identifies TUSB211RWBR as a 12-pin RWB package variant.
Typical uses include USB host-to-peripheral links, USB-to-wireless bridges, industrial USB connections, peripheral docking systems, and cable-extension designs. The device is especially relevant when a connector, cable, or long PCB route introduces measurable high-speed attenuation and the designer wants to recover usable eye margin without replacing the entire USB interface implementation.
When laying out a design, treat the conditioner as part of the high-speed channel rather than as an isolated IC. Verify differential impedance, minimize impedance discontinuities, provide the required local bypassing, and place the device where the channel losses remain predictable. Confirm signal-eye and compliance behavior with the complete connector, cable, host, and peripheral combination because channel length and topology can change the amount of correction required.
This product page combines the exact TUSB211RWBR ordering information with practical USB signal-integrity guidance, compatibility-focused alternatives, and a side-by-side view of the electrical and packaging constraints that determine whether a substitution can be implemented without a PCB redesign.
直接替換替代品，適用於 TUSB211RWBR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
TUSB211IRWBR
✅ 直接替換📋 參考替代品（不在目錄中）
TUSB216RWBR
✅ 直接替換聯絡詢價
查看資料表 →TUSB216IRWBR
✅ 直接替換📋 參考替代品（不在目錄中）
TUSB211RWBR 規格
| Product Type | USB 2.0 high-speed signal conditioner |
| USB Data Rate | 480 Mbps |
| USB Interface | USB 2.0 |
| Signal Compensation | Intersymbol interference compensation |
| 封裝 | 12-X2QFN (RWB), 1.6 mm x 1.6 mm |
| 腳位數 | 12 pins |
| 安裝類型 | Surface mount |
| Maximum Data Rate | 480 Mbps |
| RoHS 狀態 | Compliant |
TUSB211RWBR 12-x2qfn (rwb), 1.6 mm x 1.6 mm 腳位配置指南
TUSB211RWBR（12-x2qfn (rwb), 1.6 mm x 1.6 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： TUSB211RWBR.
請參閱 資料表 以查看完整腳位配置。
典型應用
TUSB211RWBR 適用於 6 應用s: USB 2.0 Peripheral Data Links, USB Cable Extension, Industrial USB Gateways, USB-to-Wireless Bridges, Peripheral Docking Systems, Test and Measurement USB Connections.
USB 2.0 Peripheral Data Links
The TUSB211RWBR fits a USB 2.0 high-speed path that must operate at 480 Mbps through a connector, adapter, or PCB route introducing channel loss. Its signal-conditioning role compensates for intersymbol interference while preserving the existing USB high-speed data path. Place the device close to the degraded-channel boundary and maintain continuous differential impedance across its inputs and outputs. Validate the final combination with eye measurements because host amplitude, cable length, connector transitions, and PCB geometry determine how much correction is required.
USB Cable Extension
Use the TUSB211RWBR when a USB high-speed extension must span passive interconnect whose attenuation would otherwise reduce usable eye margin. The 480-Mbps capability targets USB 2.0 high-speed signaling, while the compensation function targets intersymbol interference caused by the transmission channel. The 12-X2QFN RWB package is useful where connector density and board area are constrained. Confirm the complete cable, connector, source, and sink assembly at the required length because compensation capability alone does not establish total channel compliance.
Industrial USB Gateways
Industrial gateways commonly connect USB peripherals through board-to-board links, terminal blocks, or external cables that can degrade high-speed signal quality. The TUSB211RWBR can compensate a 480-Mbps USB 2.0 channel and support a compact 12-pin X2QFN implementation. Its small package permits placement near the connector or channel transition where launch loss is easier to manage. In an industrial enclosure, verify temperature performance, emissions, ground continuity, and immunity at the system level rather than relying only on device-level specifications.
USB-to-Wireless Bridges
A USB-to-wireless bridge can place copper USB traces, connectors, and internal cable segments between a host and bridge controller. The TUSB211RWBR is applicable when that interconnect causes USB 2.0 high-speed degradation at 480 Mbps. Its intersymbol-interference compensation function helps recover signal quality without redesigning the USB protocol stack. Place the conditioner according to the measured channel, retain short return paths, and check eye diagrams at the bridge input because transmitter amplitudes and connector launches can materially affect the required compensation.
Peripheral Docking Systems
Docking systems often place USB ports and external cables several centimeters or more from the host controller, creating loss from both connector launches and cable impedance. The TUSB211RWBR can serve as a 480-Mbps USB high-speed channel conditioner in such space-constrained products. Its 1.6 mm by 1.6 mm X2QFN footprint supports dense connector layouts. Decide whether to place it before or after the removable interconnect based on eye measurements, and use matched differential routing on both sides of the device.
Test and Measurement USB Connections
Instrumentation systems can use the TUSB211RWBR to maintain USB 2.0 high-speed data integrity across internal routing, external adapters, or test fixtures. At 480 Mbps, fixture transitions and long traces can create enough loss to impair eye opening. The compact 12-pin RWB package allows the conditioner to be located near the fixture connector, reducing sensitivity to uncontrolled channel variation. Validate every cable and adapter combination used in production because a compliant fixture path does not guarantee compliance after a user substitutes an external accessory.
工程參考資料，適用於 TUSB211RWBR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TUSB211IRWBR | TUSB216RWBR | TUSB216IRWBR |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 12-X2QFN (RWB), 1.6 mm x 1.6 mm | 12-X2QFN (RWB), 1.6 mm x 1.6 mm | 12-X2QFN (RWB), 1.6 mm x 1.6 mm | 12-X2QFN (RWB), 1.6 mm x 1.6 mm |
| Pin Count | 12 pins | 12 pins | 12 pins | 12 pins |
主要差異化特點
- Directly targets USB high-speed channel degradation (對比TUSB216RWBR)
- Automotive-oriented option shares the target RWB footprint (對比TUSB211IRWBR)
- Compact 1.6 mm by 1.6 mm footprint for connector-dense designs (對比TUSB216IRWBR)
設計說明
Treat the TUSB211RWBR as an element of the complete USB high-speed channel. Preserve continuous 90-ohm differential impedance, minimize pair-length mismatch, avoid stubs, and provide a continuous reference plane beneath the differential route. Position the device according to measured channel degradation, then verify 480-Mbps eye opening with the intended host, cable, connectors, and peripheral. Component-level substitution is incomplete if the assembled channel fails the applicable USB mask.
Use the manufacturer application circuit and package drawing as the authority for bypass capacitance, support components, exposed-pad treatment, and pin assignment. Place local input and output bypass components close to their associated terminals, while keeping their return paths short. Avoid placing the RWB package beneath tall connector or shielding structures without checking assembly clearance and thermal behavior. Confirm the selected package drawing and land pattern against the exact RWB ordering variant.
Do not treat every USB 2.0 redriver, retimer, or signal-conditioning IC as a drop-in substitute. Before approving TUSB211IRWBR, TUSB216RWBR, or TUSB216IRWBR, compare pin functions, power requirements, compensation range, configuration method, and application circuitry. Then repeat eye, compliance, emissions, and system interoperability testing. A shared RWB package establishes a useful starting point, but it does not by itself prove functional interchangeability.
合規資訊
The product listing identifies the TUSB211RWBR as RoHS compliant. REACH, halogen-free, conflict-minerals, and automotive qualification details for this exact ordering code require confirmation from the manufacturer product documentation. The separate automotive-qualified datasheet result concerns the TUSB211I family.
