Texas Instruments TUSB217/TUSB217-Q1 USB 2.0 Signal Conditioners

Texas Instruments TUSB217/TUSB217-Q1 USB 2.0 High-Speed Signal Conditioners are designed to compensate for both AC loss (due to capacitive load) and DC loss (due to resistive loss) in the transmission channel. The TUSB217/TUSB217-Q1 has a patented design that speeds up transition edges of USB 2.0 high-speed signal with an edge booster. This booster also increases static levels with a DC boost function. The TUSB217/TUSB217-Q1 includes a pre-equalization function to improve the receiver sensitivity and compensate for the ISI jitter in an application with a longer cable length. USB low-speed and full-speed signal characteristics are unaffected by the TUSB217/TUSB217-Q1.

The Texas Instruments TUSB217/TUSB217-Q1 USB 2.0 High-Speed Signal Conditioners improve signal quality without altering packet timing or propagation delay, making it ideal for applications requiring low latency. This conditioner helps a system to pass the USB 2.0 high-speed electrical near-end eye compliance tests with a cable as long as 5 meters. The TUSB217/TUSB217-Q1 is compatible with the USB On-The-Go (OTG) and Battery Charging (BC 1.2) protocols.

Features

  • AEC-Q100 Qualified for automotive applications
    • Device temperature grade 2: –40°C to 105°C TA
  • Wide supply voltage range of 2.3 - 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, and high-speed signaling
  • Host/Device agnostic
  • Scalable solution - daisy chain devices for high-loss applications
  • Supports up to 5m cable length
    • Four selectable signal boost (edge boost along with DC boost) setting via an external pull-down resistor
    • Three selectable RX sensitivity via pull-up or down configurable pins to compensate ISI jitter for high-loss applications
  • Pin compatible with TUSB213 (5V)

Applications

  • Automotive infotainment
  • Automotive head unit
  • Automotive media hub
  • Laptop/desktop/docking stations
  • Tablets/cell phones
  • Televisions
  • Active cable, cable extenders, and backplane

Functional Block Diagram

Block Diagram - Texas Instruments TUSB217/TUSB217-Q1 USB 2.0 Signal Conditioners
Published: 2019-03-29 | Updated: 2023-08-14