Overview
The TUSB214IRWBT, produced by Texas Instruments, is a USB 2.0 High-Speed signal conditioner designed to compensate for Inter-Symbol Interference (ISI) signal loss in transmission channels. This device is compatible with USB 2.0, OTG 2.0, and BC 1.2 specifications. It is particularly useful in applications where signal integrity is crucial, such as in long cable runs or high-loss PCB traces. The TUSB214IRWBT does not alter the characteristics of Low Speed (LS) and Full Speed (FS) signals but compensates for High Speed (HS) signals, ensuring compliance with USB HS electrical standards.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| IACTIVE_HS | USB channel = HS mode; 480 Mbps traffic; VCC = 3.3V; VCC supply stable; DC Boost = 60 mV | 22 | 30 | - | mA |
| IIDLE_HS | USB channel = HS mode; no traffic; VCC = 3.3V; VCC supply stable; DC Boost = 60 mV | 14 | 22 | - | mA |
| ISUSPEND_HS | USB channel = HS suspend mode; VCC = 3.3V; VCC supply stable | 0.55 | 1.5 | - | mA |
| FBR_DXX | USB channel = HS mode; 480 Mbps traffic; VCC supply stable | 480.24 | - | - | Mbps |
| tRISE_DXX | 10% - 90%; VCC = 3.6V; Max AC Gain; | 100 | - | - | ps |
| tFALL_DXX | 90% - 10%; VCC = 3.6V; Max AC Gain; | 100 | - | - | ps |
| VCC | - | 3.0 | 3.3 | 3.6 | V |
| Package | - | - | X2QFN (12) | - | - |
| Body Size (Nom) | - | - | 1.60 mm x 1.60 mm | - | - |
Key Features
- Compatible with USB 2.0, OTG 2.0, and BC 1.2 specifications.
- Pin strap or I2C configurable.
- BC1.2 Charging Downstream Port (CDP) controller.
- Support for LS, FS, and HS signaling.
- Ultra-low USB Disconnect and Shutdown Power Consumption.
- Selectable Signal Gain Via 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 Cable, Cable Extenders
- Backplane
- Televisions
Q & A
- What is the primary function of the TUSB214IRWBT?
The primary function is to restore the signal integrity of a USB High-Speed channel by compensating for ISI signal loss in transmission channels.
- Is the TUSB214IRWBT compatible with USB OTG and BC specifications?
- How is the AC boost configured on the TUSB214IRWBT?
The AC boost is configured through an external pulldown resistor on the EQ pin, allowing for four selectable AC boost settings.
- What is the role of the DC_BOOST pin on the TUSB214IRWBT?
The DC_BOOST pin is a tri-level pin used to set the DC gain of the device, with settings for 40mV, 60mV, and 80mV.
- Can the TUSB214IRWBT be used as a CDP controller?
- What are the typical applications of the TUSB214IRWBT?
Typical applications include notebooks, desktops, docking stations, tablets, cell phones, active cables, cable extenders, backplanes, and televisions.
- How does the TUSB214IRWBT handle Low Speed and Full Speed signals?
The device automatically detects LS and FS connections and does not enable signal compensation for these speeds, leaving their signal characteristics unaffected.
- What is the power consumption in High-Speed active mode?
The power consumption in High-Speed active mode is typically 30 mA with a minimum of 22 mA.
- Can the TUSB214IRWBT be configured via I2C?
- What is the recommended operating voltage range for the TUSB214IRWBT?
The recommended operating voltage range is 3.0V to 3.6V.
