Overview
The TUSB213IRGYR, produced by Texas Instruments, is a USB 2.0 High-Speed signal conditioner designed to compensate for signal integrity issues in USB transmission channels. This device is particularly useful in scenarios where signal loss due to high-loss PCB traces, cables, and other components can cause USB channels to fail electrical compliance tests. The TUSB213 is compatible with USB 2.0, USB On-The-Go (OTG) 2.0, and Battery Charging (BC) 1.2 specifications.
The device features a patent-pending design that is agnostic to USB Low Speed (LS) and Full Speed (FS) signals, ensuring these signals remain unaffected while High Speed (HS) signals are compensated. It supports programmable signal AC and DC boost, allowing for fine-tuning of device performance to optimize signal integrity at the connector.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| VCC Supply Voltage | 4.4 | 5 | 5.5 | V |
| High-Level Input Voltage (VIH) | 2.4 | 3.6 | V | |
| Low-Level Input Voltage (VIL) | 0 | 0.4 | V | |
| Bit Rate (FBR_DXX) | 480.24 | Mbps | ||
| Rise Time (tRISE_DXX) | 100 | ps | ||
| Fall Time (tFALL_DXX) | 100 | ps | ||
| Junction-to-Ambient Thermal Resistance (RθJA) | 49.1 | °C/W | ||
| Package Type | VQFN (14) | |||
| Body Size (Nom) | 3.50 mm x 3.50 mm |
Key Features
- Compatible with USB 2.0, OTG 2.0, and BC 1.2 specifications.
- Pin strap or I2C configurable.
- Supports Low Speed (LS), Full Speed (FS), and High Speed (HS) signaling.
- Ultra-low USB disconnect and shutdown power consumption.
- Scalable solution - daisy chain device for high loss applications.
- D1P/M and D2P/M interchangeable and host/device agnostic.
- Supports up to 5m pre-channel or 2m post-channel cable length.
- Four selectable AC boost settings via external pulldown resistor.
- DC boost along with AC boost for best signal integrity.
Applications
- Notebooks
- Desktops
- Docking Stations
- Tablets
- Cell Phones
- Active Cables and Cable Extenders
- Backplane
- Televisions
The TUSB213 is particularly useful in scenarios where maintaining signal integrity over long cable lengths or through high-loss PCB traces is critical.
Q & A
- What is the primary function of the TUSB213?
The primary function of the TUSB213 is to restore the signal integrity of a USB High Speed channel, compensating for signal loss due to high-loss PCB traces and cables.
- Is the TUSB213 compatible with USB OTG and BC specifications?
- How is the AC boost configured on the TUSB213?
The AC boost is configured through an external pulldown resistor on the EQ pin, allowing for four selectable AC boost levels.
- What are the DC boost settings available on the TUSB213?
The DC boost settings are configurable via the DC_BOOST pin, offering three levels: 40 mV, 60 mV, and 80 mV.
- Can the TUSB213 be used in daisy chain configurations?
- What is the maximum cable length supported by the TUSB213?
The TUSB213 supports up to 5 meters pre-channel or 2 meters post-channel cable length.
- How does the TUSB213 handle Low Speed and Full Speed signals?
The TUSB213 automatically detects and bypasses Low Speed and Full Speed signals without enabling signal compensation.
- What is the thermal resistance of the TUSB213 in VQFN package?
The junction-to-ambient thermal resistance (RθJA) of the TUSB213 in VQFN package is 49.1°C/W.
- Does the TUSB213 support I2C configuration?
- How is the reset signal handled on the TUSB213?
The reset signal is handled through the RSTN pin, which must be toggled to recognize any changes to the AC and DC boost settings.
