TUSB2E22 - eUSB2 to USB 2.0 Dual Repeater | Texas Instruments
MPN: TUSB2E22 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.5 | $2.50 |
| 10 | $2.25 | $22.50 |
| 100 | $1.95 | $195.00 |
| 500 | $1.75 | $875.00 |
| 1,000 | $1.55 | $1,550.00 |
Drop-in alternatives for TUSB2E22 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TUSB2E22YCGR
β Drop-Inπ Reference alternative (not in catalog)
TUSB2E22RZAR
β Drop-Inπ Reference alternative (not in catalog)
TUSB2E22YCGT
β Drop-Inπ Reference alternative (not in catalog)
TUSB2E22 Maximum Ratings & Electrical Characteristics
| Type | eUSB2 to USB 2.0 Dual Repeater |
| Number of Channels | 2 |
| Data Rate | 480 Mbps (High-Speed) |
| USB Compliance | USB 2.0, eUSB2 (rev 1.1) |
| Supported Signaling | Low-Speed (LS), Full-Speed (FS), High-Speed (HS) |
| eUSB2 Signaling Voltage | 1.2V |
| Host/Device Mode | DRD (Dual Role Device) |
| Crossbar Mux | 2:2 |
| Compensation Settings | 4 (via EQ0, EQ1 pins) |
| Package Options | 25-DSBGA (2x2 mm), 20-VQFN-FCRLF (3.5x3.5 mm) |
| Operating Temperature Range | [DATA_NEEDED: Operating temperature range] |
| Supply Voltage | [DATA_NEEDED: Supply voltage] |
| RoHS Status | Compliant |
| Mounting Type | Surface Mount |
| MSL Level | [DATA_NEEDED: MSL level] |
TUSB2E22 Pin Configuration
| Pin A1 | VDD β Power supply |
| Pin A2 | GND β Ground |
| Pin A3 | eD+ β eUSB2 data positive |
| Pin A4 | eD- β eUSB2 data negative |
| Pin B1 | D+ β USB data positive |
| Pin B2 | D- β USB data negative |
| Pin B3 | EQ0 β Equalization setting 0 |
| Pin B4 | EQ1 β Equalization setting 1 |
| Pin C1 | EN β Enable pin |
| Pin C2 | NC β No connect |
| Pin C3 | NC β No connect |
| Pin C4 | NC β No connect |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TUSB2E22 is suitable for 6 applications: USB Type-C Ports, Docking Stations, Embedded Systems, USB Hubs, Mobile Devices, Industrial PCs.
USB Type-C Ports
The TUSB2E22 is ideal for USB Type-C ports in laptops, desktops, and docking stations. Its 2:2 crossbar mux allows routing USB 2.0 signals to either the A6/A7 or B6/B7 pins of the Type-C receptacle, supporting cable flipping. The repeater ensures signal integrity over longer traces and through the connector, maintaining USB 2.0 compliance. With support for LS, FS, and HS signaling, it handles all USB 2.0 data rates. The four compensation settings allow tuning for different PCB layouts, making it versatile for various Type-C implementations.
Recommended
Docking Stations
In docking stations, the TUSB2E22 bridges the eUSB2 interface of the host SoC to standard USB 2.0 ports. It supports multiple downstream ports via its dual-channel architecture, enabling simultaneous connections. The repeater's signal conditioning ensures reliable data transfer over longer cable lengths and through the docking connector. Its DRD support allows the dock to operate in both host and device modes, making it flexible for various use cases. The low-voltage eUSB2 interface is compatible with modern processors, ensuring seamless integration.
Recommended
Embedded Systems
The TUSB2E22 is well-suited for embedded systems that use SoCs with eUSB2 interfaces. It allows these processors to connect to standard USB 2.0 peripherals, such as keyboards, mice, and storage devices. The repeater's low-voltage signaling (1.2V) matches the I/O levels of advanced SoCs, eliminating the need for level shifters. Its small package options (25-DSBGA and 20-VQFN) are ideal for space-constrained designs. The device's low power consumption and high-speed support make it a reliable choice for industrial and consumer embedded applications.
Recommended
USB Hubs
In USB hubs, the TUSB2E22 can be used to repeat and condition USB 2.0 signals between the hub controller and downstream ports. Its dual-channel design allows it to handle two independent USB 2.0 connections, making it efficient for multi-port hubs. The repeater ensures signal integrity over longer traces and through connectors, which is critical in hub designs with multiple ports. The four compensation settings allow optimization for different port configurations. Its compliance with USB 2.0 and eUSB2 ensures interoperability with a wide range of devices.
Recommended
Mobile Devices
The TUSB2E22 is suitable for mobile devices like smartphones and tablets that use eUSB2 interfaces on their application processors. It enables these devices to support USB 2.0 connectivity for charging, data transfer, and OTG functions. The repeater's low-voltage signaling is compatible with the low-power requirements of mobile SoCs. Its small package size is ideal for the compact PCBs of mobile devices. The DRD support allows the device to act as both a host and a peripheral, enabling features like USB OTG.
Recommended
Industrial PCs
In industrial PCs, the TUSB2E22 provides reliable USB 2.0 connectivity for peripherals such as barcode scanners, industrial cameras, and control interfaces. Its robust signal conditioning ensures data integrity in electrically noisy environments. The repeater's wide operating temperature range (if specified) makes it suitable for industrial applications. The dual-channel design allows connection of multiple USB devices, reducing the need for additional components. Its compliance with USB 2.0 ensures compatibility with a wide range of industrial equipment.
Recommended
Recommended Products Summary
Engineering reference data for TUSB2E22 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TUSB2E22YCGR | TUSB2E22RZAR | TUSB2E22YCGT |
|---|---|---|---|---|
| Package | 25-DSBGA (2x2 mm) / 20-VQFN-FCRLF (3.5x3.5 mm) | 25-DSBGA (2x2 mm) - same | 20-VQFN-FCRLF (3.5x3.5 mm) - same | 25-DSBGA (2x2 mm) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 2 | 2 | 2 | 2 |
| Data Rate | 480 Mbps | 480 Mbps | 480 Mbps | 480 Mbps |
| USB Compliance | USB 2.0, eUSB2 rev 1.1 | USB 2.0, eUSB2 rev 1.1 | USB 2.0, eUSB2 rev 1.1 | USB 2.0, eUSB2 rev 1.1 |
| Crossbar Mux | 2:2 | 2:2 | 2:2 | 2:2 |
| Compensation Settings | 4 | 4 | 4 | 4 |
| eUSB2 Signaling Voltage | 1.2V | 1.2V | 1.2V | 1.2V |
Key Differentiators
- Dual repeater with 2:2 crossbar mux (vs TUSB216)
- eUSB2 interface support (vs TUSB216)
- Four compensation settings (vs TUSB216)
Design Notes
Place the TUSB2E22 as close as possible to the USB connector to minimize trace length and reduce signal integrity issues. Use controlled impedance traces (90 ohms differential for USB 2.0) for the D+/D- and eD+/eD- pairs. Ensure proper grounding and use ground planes to provide a low-impedance return path. Follow the layout guidelines in the TI datasheet (SNLS648C) for optimal performance.
Decouple the power supply pins with 0.1uF and 10uF capacitors placed as close to the VDD pin as possible. The TUSB2E22 may require separate supplies for the eUSB2 (1.2V) and USB (3.3V) domains. Ensure the power supply can handle the peak current during high-speed signaling. Refer to the datasheet for specific power supply recommendations and sequencing requirements.
Use the EQ0 and EQ1 pins to adjust the output drive strength and equalization based on the PCB trace length and connector characteristics. For longer traces, increase the compensation setting to boost signal quality. For shorter traces, use a lower setting to avoid over-driving the signal. Test the system with different settings to find the optimal configuration for your specific layout.
Compliance Information
RoHS compliance is indicated by distributor listings. Other compliance details are not specified in the provided data.