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Texas Instruments TUSB217A USB 2.0 High-Speed Signal Conditioners

Texas Instruments TUSB217A USB 2.0 High-Speed Signal Conditioners are designed to compensate both AC loss (due to capacitive load) and DC loss (due to resistive loss) in the transmission channel. The TUSB217A leverages a patented design to speed up transition edges of USB 2.0 high-speed signal with an edge booster and increases static levels with a DC boost function. The TUSB217A includes a pre-equalization function to improve the receiver sensitivity and compensate for the inter-symbol interference (ISI) jitter in applications with longer cable length. USB low-speed and full-speed signal characteristics are unchanged by the TUSB217A.

The TI TUSB217A helps a system pass the USB 2.0 high-speed near-end eye compliance with a cable as long as 5 meters. The TUSB217A is compatible with the USB On-The-Go (OTG) and battery charging (BC 1.2) protocols. The integrated BC 1.2 battery charging controller is enabled via a control pin.

Features

  • Wide supply voltage range: 2.3V - 6.5V
  • Ultra-low USB disconnect and shutdown power consumption
  • Provides USB 2.0 high-speed signal conditioning
  • Compatible with USB 2.0, OTG 2.0 and BC 1.2
  • Support for low-speed, full-speed, high-speed signaling
  • Integrated BC 1.2 Charging Downstream Port (CDP) and Dedicated Charging Port (DCP) controllers that dynamically changes per DCP/CDP pin
  • Host/Device agnostic
  • Supports up to 5-m cable length
    • Four selectable signal boost (edge boost along with DC boost) settings via external pull-down resistor values
    • Three selectable RX equalization settings via pull-up-or-down to compensate ISI jitter for high-loss applications
  • Supports up to 10-m cable length with two TUSB217A devices
  • Scalable solution - devices can be daisy-chained for high loss applications
  • RWB is pin-compatible with TUSB211/212/214/216

Applications

  • Laptop, desktop/docking stations
  • Portable electronics
  • Tablets
  • Cell phones
  • Televisions
  • Active cable, cable extenders, backplane

Associated Eval Module

Texas Instruments TUSB217AEVM-BC Evaluation Module (EVM)

Used to evaluate the signal conditioning abilities of the TUSB217A device for various applications.

Learn Moreacerca de Texas Instruments TUSB217AEVM-BC Evaluation Module (EVM) View Productsrelacionado con Texas Instruments TUSB217AEVM-BC Evaluation Module (EVM)

Simplified Schematic

Schematic - Texas Instruments TUSB217A USB 2.0 High-Speed Signal Conditioners

Functional Block Diagram

Block Diagram - Texas Instruments TUSB217A USB 2.0 High-Speed Signal Conditioners
Publicado: 2021-07-13 | Actualizado: 2022-03-11