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Texas Instruments TUSB214QRWBRQ1
- Part No.:
- TUSB214QRWBRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 12-XFQFN
- Datasheet:
-
TUSB214QRWBRQ1.pdf
- Description:
- IC INTERFACE SPECIALIZED 12X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,698
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Product details
Overview
TUSB214QRWBRQ1 from Texas Instruments is an automotive-qualified USB 2.0 High-Speed signal conditioner with integrated BC1.2 Charging Downstream Port (CDP) controller. It compensates for inter-symbol interference (ISI) in USB HS channels while leaving LS/FS signals unaltered, supports up to 5 m pre-channel or 2 m post-channel cable length, operates from –40°C to 105°C, and delivers programmable AC/DC boost via external resistors.
For engineers reviewing the TUSB214QRWBRQ1 datasheet, TUSB214QRWBRQ1 pinout, TUSB214QRWBRQ1 application, or TUSB214QRWBRQ1 equivalent, key selection considerations include HS eye mask compliance support, CDP controller capability for host-side charging, pin-strapped or I²C configurability, ultra-low disconnect power (0.7–1.5 mA), and X2QFN-12 (1.6 mm × 1.6 mm) automotive-grade packaging.
Technical Context
The TUSB214QRWBRQ1 implements a patent-pending, host/device-agnostic signal conditioning architecture that dynamically enables compensation only during HS mode detection (480 Mbps), preserving LS/FS signal integrity without modification. Its dual-path differential input/output structure (D1P/D1M and D2P/D2M) allows flexible placement-either near the USB connector (for near-end mask compliance) or near the PHY (for far-end eye recovery).
Configuration is supported via pin-strapping (EQ for 4-level AC boost; DC_BOOST for 3-level DC boost: 40/60/80 mV) or 100 kHz I²C interface (7-bit address 0x2C). The device integrates a CDP controller to emulate BC1.2-compliant downstream port behavior when the host/hub lacks native charging support, and provides status flags (CD, ENA_HS) for system-level coordination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0 V to 3.6 V - Ensures compatibility with standard 3.3 V automotive power rails and stable operation across voltage tolerance. |
| HS Bit Rate | 480.24 Mbps - Matches USB 2.0 High-Speed specification, enabling full-speed data transfer without protocol deviation. |
| AC Boost Levels | 4 selectable via EQ pin pulldown (0–3) - Enables precise tuning of high-frequency signal restoration to pass USB HS eye mask tests. |
| DC Boost Settings | 40 mV / 60 mV / 80 mV via DC_BOOST pin strap - Compensates low-frequency loss to restore signal baseline and improve jitter margin. |
| Operating Temp | –40°C to +105°C - Qualified for Grade 2 automotive ambient conditions, supporting infotainment and telematics deployment. |
| ESD Rating | HBM ±2000 V, CDM ±500 V - Meets AEC-Q100 stress requirements for robustness in vehicle ESD environments. |
| HS Active Current | 22–30 mA at 480 Mbps - Low power consumption during active HS operation, minimizing thermal load in space-constrained modules. |
Pinout & Package
X2QFN-12 package (1.60 mm × 1.60 mm, 0.4 mm pitch) with wettable flanks for automotive-grade solder joint inspection and thermal performance (RθJA = 137.4°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D1P / D1M | HS differential input/output (host side) | Bi-directional USB HS lane; connects to upstream USB transceiver or hub; internally bypassed in LS/FS modes. |
| D2P / D2M | HS differential input/output (connector side) | Bi-directional USB HS lane; routes directly to USB receptacle; maintains trace continuity even when device is unpopulated. |
| RSTN | Active-low reset enable | Drives device into shutdown (≤80 µA) when low; requires ≥20 µs pulse width and stable VCC before de-assertion. |
| EQ | AC boost configuration input | Four-level AC gain selection via external pulldown resistor (0 Ω to 6 kΩ); latched at RSTN de-assertion. |
| DC_BOOST / ENA_HS | DC gain select / HS mode flag | Tri-level input (L/M/H) sets DC boost; outputs ENA_HS high upon successful HS handshake or TEST_PACKET detection. |
| SCL/CD | I²C clock / connection detect | In I²C mode: SCL input; in pin-strapped mode: open-drain CD output indicating DP/DM pull-up detection. |
| SDA | I²C data bidirectional | Open-drain I²C data line (address 0x2C); pulled up to 3.3 V with 4.7 kΩ resistor in I²C mode. |
| VREG | 1.8 V LDO output | Supplies internal core only during HS mode; requires 0.1 µF decoupling capacitor to GND for stability. |
| VCC | Main supply input | 3.3 V power rail; must ramp within 0.2–100 ms and stabilize ≥100 µs before RSTN de-assertion. |
| GND | Ground reference | Common return path for analog and digital domains; critical for HS signal integrity and ESD path routing. |
Key Features
| Feature | Design Value |
|---|---|
| LS/FS signal transparency | Zero insertion loss and no timing perturbation for Low/Full Speed USB traffic - preserves enumeration and HID functionality without requalification. |
| HS eye mask compliance support | Programmable AC/DC boost restores signal integrity to meet USB-IF HS near/far-end eye mask requirements - eliminates need for costly PCB re-spin. |
| BC1.2 CDP controller | Enables charging downstream port behavior on hosts lacking native BC1.2 support - delivers up to 1.5 A to connected devices without firmware changes. |
| Flexible configuration interface | Pin-strapped default operation (no software overhead) or optional 100 kHz I²C for runtime adjustment and status readback - supports both cost-sensitive and feature-rich designs. |
| Fail-safe board layout | Signal trace continuity maintained through D1↔D2 shorting - allows unpopulated placement without breaking USB signal path or requiring layout revision. |
Applications
| Automotive Infotainment Head Unit | Notebook Docking Station |
|---|---|
Use Scenario: USB 2.0 HS interface between head unit SoC and rear-seat entertainment display over 2 m harness cable with >8 dB loss. IC Role / Device Role / Timing Role: Signal conditioner restoring HS eye opening at display connector; CDP controller enabling fast charging of attached peripherals. Use Value: Passes USB-IF far-end eye mask without altering PCB stack-up; eliminates need for higher-cost active cables or retimers. | Use Scenario: Docking station extending USB 2.0 ports to external monitors, storage, and keyboards using 5 m pre-channel cabling. IC Role / Device Role / Timing Role: Pre-channel signal booster placed near host controller; AC/DC boost tuned to offset trace + connector loss budget. Use Value: Enables reliable 480 Mbps operation across full cable length; supports BC1.2 CDP for charging tablets and phones connected to dock. |
| Industrial Tablet Docking Cradle | Automotive Telematics Control Unit |
Use Scenario: Ruggedized tablet dock with hot-plug USB peripherals where mechanical wear increases channel loss over time. IC Role / Device Role / Timing Role: Reconfigurable signal conditioner with field-upgradable boost settings via I²C; CD pin used for microcontroller wake-up on attach. Use Value: Extends product lifecycle by compensating for aging interconnects; reduces firmware complexity via hardware-based CDP emulation. | Use Scenario: TCU connecting to OBD-II diagnostic tool via USB 2.0, operating in under-hood temperature extremes (–40°C to +105°C). IC Role / Device Role / Timing Role: Automotive-qualified HS conditioner ensuring reliable firmware update transfers; integrated CDP enables rapid tool battery recharge. Use Value: AEC-Q100 Grade 2 qualification guarantees operation across full automotive temperature range; eliminates separate charging IC BOM cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 2.0 signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TUSB216QRWBRQ1 | Dual-channel version with independent AC/DC boost control per channel; same package and temp grade. | Required for systems with two independent USB 2.0 links (e.g., dual-display infotainment); not suitable for single-lane cost-optimized designs. | Select TUSB216QRWBRQ1 only when dual-channel conditioning is needed; TUSB214QRWBRQ1 remains optimal for single-lane applications due to lower cost and footprint. |
| USB2244-AEZG-03 | Non-automotive USB 2.0 repeater with fixed gain; commercial temp range (0°C to 70°C); no BC1.2 CDP support. | Targeted at consumer notebooks/desktops; lacks AEC-Q100 qualification and charging control logic. | Use USB2244-AEZG-03 only in non-automotive, cost-sensitive applications where CDP and extended temperature are not required. |
Compared with TUSB214QRWBRQ1, TUSB216QRWBRQ1 adds channel independence at higher BOM cost, while USB2244-AEZG-03 omits automotive qualification and BC1.2 functionality - making TUSB214QRWBRQ1 the sole choice for AEC-Q100-compliant, CDP-enabled single-lane USB 2.0 signal restoration.
Availability
TUSB214QRWBRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, industrial docking stations, and telematics control units requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant signal integrity solutions.
Supply support for TUSB214QRWBRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and connectivity technologies, with leadership in automotive electronics and industrial signal conditioning solutions.
The TUSB214-Q1 product line delivers USB 2.0 High-Speed signal restoration and BC1.2 charging control for automotive and industrial applications where signal integrity, reliability, and protocol compliance are critical.
FAQ
What is the primary function of the TUSB214QRWBRQ1 in a USB 2.0 system?
The TUSB214QRWBRQ1 functions as a High-Speed (480 Mbps) signal conditioner that compensates for inter-symbol interference (ISI) and channel loss in USB 2.0 differential paths. It restores signal integrity at the connector to pass USB-IF electrical compliance tests while leaving Low-Speed and Full-Speed traffic unaffected. The TUSB214QRWBRQ1 also integrates a BC1.2 Charging Downstream Port controller for host-side charging support.
Does the TUSB214QRWBRQ1 require firmware or driver support to operate?
No, the TUSB214QRWBRQ1 operates autonomously without firmware or host driver involvement. Its signal conditioning activates automatically upon HS mode detection, and BC1.2 CDP functionality is implemented in hardware. Configuration can be done via pin strapping (default) or optionally via I²C - but neither requires host CPU intervention or software updates. The TUSB214QRWBRQ1 is transparent to USB protocol stack operation.
How does the TUSB214QRWBRQ1 handle USB Low-Speed and Full-Speed traffic?
The TUSB214QRWBRQ1 is explicitly designed to be agnostic to Low-Speed (1.5 Mbps) and Full-Speed (12 Mbps) USB signaling. Its patent-pending architecture bypasses LS/FS signals without introducing insertion loss, skew, or timing distortion - preserving enumeration, HID communication, and other low-speed protocols. Only High-Speed traffic undergoes AC/DC boost compensation, ensuring backward compatibility and eliminating requalification risk.
Can the TUSB214QRWBRQ1 be used in both host-side and device-side USB configurations?
Yes, the TUSB214QRWBRQ1 is host/device-agnostic and supports both orientations: D1P/D1M can connect to the host transceiver while D2P/D2M route to the USB receptacle, or vice versa. Its symmetric differential architecture and automatic mode detection ensure correct operation regardless of placement direction. This flexibility enables use in host-side docking stations, device-side active cables, and mid-channel backplane applications.
What are the key design considerations for PCB layout with the TUSB214QRWBRQ1?
Key layout requirements for the TUSB214QRWBRQ1 include maintaining uninterrupted 90 Ω differential impedance on D1P/D1M and D2P/D2M traces routed underneath the X2QFN-12 package, placing 0.1 µF capacitors on VCC and VREG pins close to their respective pads, and using 4.7 kΩ pull-ups on SDA/SCL for I²C mode. The RSTN pin requires either a microcontroller-driven clean reset or a 0.1 µF capacitor to GND if passive reset is used - per TI's recommended RC timing.
TUSB214QRWBRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-XFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- USB
- Interface:
- I2C
- Voltage - Supply:
- 3V ~ 3.6V
- Supplier Device Package:
- 12-X2QFN (1.6x1.6)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
TUSB214QRWBRQ1 FAQ
1.How can I place an order for TUSB214QRWBRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB214QRWBRQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TUSB214QRWBRQ1 reliable?
The price and inventory of TUSB214QRWBRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB214QRWBRQ1 is usually 5 days.
3.What payment methods are accepted for TUSB214QRWBRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB214QRWBRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB214QRWBRQ1?
TUSB214QRWBRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB214QRWBRQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TUSB214QRWBRQ1?
For technical support, including TUSB214QRWBRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB214QRWBRQ1 requirements.
6.How does Aetrix verify that TUSB214QRWBRQ1 is sourced from the original manufacturer or authorized distributors?
All TUSB214QRWBRQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TUSB214QRWBRQ1 meets industry standards.
7.What is the process for return or replacement of TUSB214QRWBRQ1?
All TUSB214QRWBRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TUSB214QRWBRQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TUSB214QRWBRQ1 part is unused and in its original packaging.
Return procedure for TUSB214QRWBRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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