TUSB212RWBT

TUSB212是一款USB高速(HS)信号调节器，专为补偿传输通道中的ISI信号损失而设计。 TUSB212采用了对USB低速(LS)和全速(FS)信号无感知的设计，该设计正在申请专利。LS和FS信号特征不受TUSB212的影响，但该器件会对HS信号进行补偿。 借助可编程信号交流升压和直流升压，可精调器件性能，从而优化连接器上的高速信号。这有助于通过USB高速电气合规性测试。 此外，TUSB212符合USB On-The-Go (OTG) 和电池充电(BC)协议。

The TUSB212 is a USB High-Speed (HS) signal conditioner, designed to compensate for ISI signal loss in a transmission channel. TUSB212 has a patent-pending design which is agnostic to USB Low Speed (LS) and Full Speed (FS) signals and does not alter their signal characteristics, while HS signals are compensated. In addition, the design is compatible with USB On-The-Go (OTG) and Battery Charging (BC) specifications. Programmable signal gain through an external resistor permits fine tuning device performance to optimize signals helping to pass USB HS electrical compliance tests at the connector. Additional DC boost configurable by three level input DC_BOOST helps overcoming the cable losses. The footprint of TUSB212 allows a board layout using this device such that it does not break the continuity of the DP/DM signal traces. This permits risk free system design of a complete USB channel with flexible use of one or multiple TUSB212 devices as needed for optimal signal integrity. This allows system designers to plan for this device and use it only if signal integrity analysis and/or lab measurements sow a need. If such a need is not warranted, the device can be left unpopulated without any board rework.

• 与USB 2.0、OTG 2.0 和BC 1.2 兼容
• 引脚搭接或可通过I²C进行配置
• 支持LS、FS 和HS 信号传输
• 超低USB 断开和关断功耗
• 在高损耗应用中通过菊花链设备实现可选信号增益
• D1P/M 和D2P/M 可互换且主机/设备不可知
• 支持长达5 米的通道前或2 米的通道后电缆长度
• 通过外部下拉电阻器实现四种可选交流升压设置直流升压与交流升压，可实现最佳信号完整性

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