TUSB211 USB 2.0 High Speed Signal Conditioner
1 Features
- Compatible with USB 2.0, OTG 2.0 and BC 1.2
- Support for LS, FS, 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
- Scalable Solution – Daisy Chain Device for High Loss Applications
- Compact 1.6 mm x 1.6 mm QFN Package
2 Applications
3 Description
The TUSB211 is a USB High-Speed (HS) signal conditioner, designed to compensate for ISI signal loss in a transmission channel.
The device has a patent-pending design which is agnostic to USB Low Speed (LS) and Full Speed (FS) signals. LS and FS signal characteristics are unaffected by the TUSB211. HS signals are compensated.
Programmable signal gain permits fine tuning device performance to optimize High Speed signals at the connector. This helps to pass USB High Speed electrical compliance tests.
The footprint of TUSB211 does not break the continuity of the DP/DM signal path. This permits risk free system design of a complete USB channel.
In addition, TUSB211 is compatible with the USB On-The-Go (OTG) and Battery Charging (BC) protocols
Device Information (1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| TUSB211 | X2QFN (12) | 1.60 mm x 1.60 mm |
| TUSB211I |
- For all available packages, see the orderable addendum at the end of the datasheet.
4 Revision History
Changes from C Revision (June 2016) to D Revision
- Deleted device TUSB211-Q1 From the data sheetGo
- Deleted Features: Qualified for Automotive ApplicationsGo
- Deleted Applications: Automotive InfotainmentGo
Changes from A Revision (June 2015) to B Revision
- Changed From: 1-page datasheet To: Full datasheet Go
- Added Features: Qualified for Automotive ApplicationsGo
- Deleted Features: –40°C to 85°C Industrial Temperature RangeGo
- Added Applications: Automotive InfotainmentGo
- Changed the Simplified SchematicGo
Changes from * Revision (May 2015) to A Revision
- Changed the data sheet From: Product Preview To: Production Go
5 Pin Configuration and Functions
Pin Functions
| PIN | I/O | INTERNAL PULLUP/PULLDOWN |
DESCRIPTION | |
|---|---|---|---|---|
| NAME | NO. | |||
| VCC | 12 | P | N/A | 3.3-V power |
| VREG | 11 | O | RSTN asserted: 30 kΩ PD | 1.8-V LDO output. Only enabled when operating in High Speed mode. Requires 0.1-µF external capacitor to GND to stabilize the core. |
| FS, LS mode: 30 kΩ PD | ||||
| HS mode: N/A | ||||
| GND | 10 | P | N/A | Ground |
| RSTN | 5 | I | 500 kΩ PU | Device disable/enable. Recommend 0.1-µF external capacitor to GND to ensure clean power on reset if not driven. |
| EQ | 6 | I | N/A | USB High Speed boost select via external pull down resistor. Sampled upon power up. Auto selects min EQ when left floating. Does not recognize real time adjustments. |
| D1P | 2 | I/O | N/A | USB High Speed positive port. Orientation independent – Can face either upstream or downstream. |
| D1M | 1 | I/O | N/A | USB High Speed negative port. Orientation independent – Can face either upstream or downstream. |
| D2P | 7 | I/O | N/A | USB High Speed positive port. Orientation independent – Can face either upstream or downstream. |
| D2M | 8 | I/O | N/A | USB High Speed negative port. Orientation independent – Can face either upstream or downstream. |
| TEST | 3 | I | RSTN asserted: 500 kΩ PD | No function. Leave floating. |
| ENA_HS | 9 | O | RSTN asserted: 500kΩ PD | Flag indicating that channel is in High Speed mode. Asserted upon:
De-asserted upon detection of disconnect or suspend. Can be left floating if not needed. |
| CD | 4 | O | RSTN asserted: 500 kΩ PD | Flag indicating that a USB device is attached. Asserted from an unconnected state upon detection of DP or DM pull-up resistor. De-asserted upon detection of disconnect. Can be left floating if not needed. |
