Overview
The TUSB211QRWBRQ1, produced by Texas Instruments, is a USB 2.0 High-Speed signal conditioner designed to compensate for Inter-Symbol Interference (ISI) signal loss in USB transmission channels. This device is particularly useful in applications where signal integrity is critical due to high loss PCB traces or other capacitive loads. The TUSB211 is compatible with USB 2.0, OTG 2.0, and BC 1.2 specifications and supports Low Speed (LS), Full Speed (FS), and High Speed (HS) signaling without altering LS and FS signal characteristics.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range (VCC) | -0.3 | 3.8 | V | |
| High Speed Active Current (I(ACTIVE_HS)) | 55 | mW | ||
| High Level Output Voltage (VOH) | 2.4 | V | ||
| Low Level Output Voltage (VOL) | 0.4 | V | ||
| Bit Rate (F(BR_DXX)) | 480 | Mbps | ||
| Rise/Fall Time (t(R/F_DXX)) | 100 | ps | ||
| Enable Time (t(EN)) | 20 | µs | ||
| Disable Time (t(DIS)) | 20 | µs | ||
| Package Size | 1.6 mm x 1.6 mm |
Key Features
- Compatible with USB 2.0, OTG 2.0, and BC 1.2 specifications
- Supports Low Speed (LS), Full Speed (FS), and High Speed (HS) signaling
- Active Power Consumption of 55 mW (Typical) with 3.3-V Single Supply
- Selectable Signal Gain Via External Pulldown Resistor
- Does not break DP, DM trace continuity
- Scalable solution – daisy chain device for high loss applications
- Compact 1.6 mm x 1.6 mm QFN package
- Programmable signal gain to optimize High Speed signals
- Compatible with USB On-The-Go (OTG) and Battery Charging (BC) protocols
Applications
- Notebooks
- Desktops
- Docking Stations
- Cell Phones
- Active Cables, Cable Extenders
- Backplane
- Televisions
- Tablets
Q & A
- What is the primary function of the TUSB211?
The primary function of the TUSB211 is to restore the signal integrity of a USB High Speed channel by compensating for ISI signal loss in the transmission channel.
- Which USB specifications is the TUSB211 compatible with?
The TUSB211 is compatible with USB 2.0, OTG 2.0, and BC 1.2 specifications.
- How does the TUSB211 handle Low Speed and Full Speed signals?
The TUSB211 does not alter the signal characteristics of Low Speed (LS) and Full Speed (FS) signals; it only compensates for High Speed (HS) signals.
- What is the typical power consumption of the TUSB211?
The typical power consumption of the TUSB211 is 55 mW with a 3.3-V single supply.
- How can the signal gain of the TUSB211 be adjusted?
The signal gain of the TUSB211 can be adjusted via an external pulldown resistor connected to the EQ pin.
- What is the package size of the TUSB211?
The TUSB211 comes in a compact 1.6 mm x 1.6 mm QFN package.
- Can the TUSB211 be used in daisy chain configurations?
- What are some common applications of the TUSB211?
- How does the TUSB211 affect the continuity of DP/DM signal traces?
- Can the TUSB211 be disabled?
