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Texas Instruments TUSB212QRWBTQ1
- Part No.:
- TUSB212QRWBTQ1
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 12-XFQFN
- Datasheet:
-
TUSB212QRWBTQ1.pdf
- Description:
- IC INTERFACE SPECIALIZED 12X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,551
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Product details
Overview
TUSB212QRWBTQ1 from Texas Instruments is an automotive-qualified USB 2.0 High-Speed (480 Mbps) signal conditioner IC designed to compensate for inter-symbol interference (ISI) loss in transmission channels while preserving LS/FS signal integrity. It supports pin-strapped or I²C configuration, delivers selectable AC/DC boost (up to 80 mV DC gain), and operates across –40°C to 105°C ambient for infotainment head unit signal restoration.
For engineers reviewing the TUSB212QRWBTQ1 datasheet, TUSB212QRWBTQ1 pinout, TUSB212QRWBTQ1 application, or TUSB212QRWBTQ1 equivalent, key selection criteria include HS eye mask compliance support, host/device-agnostic D1P/M–D2P/M interchangeability, ultra-low 0.55 mA suspend current, and automotive-grade HBM ±2000 V / CDM ±500 V ESD robustness.
Technical Context
The TUSB212QRWBTQ1 implements a patent-pending architecture that bypasses Low Speed and Full Speed USB signals without alteration while applying programmable analog equalization to High-Speed differential pairs. Its dual-port design (D1P/D1M and D2P/D2M) enables flexible placement-either pre- or post-cable-without breaking DP/DM trace continuity.
Signal conditioning is controlled via external resistor networks on EQ (four AC boost levels) and DC_BOOST (three DC offset levels: 40/60/80 mV), both latched at RSTN de-assertion. The device also provides status flags (CD for connection detection, ENA_HS for HS mode assertion) and integrates a 1.8-V VREG LDO output for internal core regulation during HS operation.
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 under load transients. |
| HS Bit Rate | 480.24 Mbps - Matches USB 2.0 High-Speed specification, enabling full-bandwidth data transfer without protocol modification. |
| AC Boost Levels | 4 selectable via EQ pin pulldown - Enables fine-grained compensation for channel losses up to 5 m pre-channel or 2 m post-channel cable length. |
| DC Boost Settings | 40 mV / 60 mV / 80 mV - Adjustable DC offset to restore signal baseline integrity and improve eye height in high-loss environments. |
| HS Suspend Current | 0.55–1.5 mA - Minimizes standby power draw in automotive systems where USB ports remain powered during vehicle sleep modes. |
| Operating Temperature | –40°C to 105°C - Qualified per AEC-Q100 Grade 2 for under-hood and dashboard-mounted infotainment applications. |
| ESD Rating (HBM) | ±2000 V - Meets automotive system-level ESD immunity requirements for USB connector-facing components. |
Pinout & Package
X2QFN-12 (RWB) package, 1.60 mm × 1.60 mm body size, 0.4-mm pitch, wettable flank terminations for automated optical inspection. Exposed thermal pad improves thermal dissipation in compact automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D1P / D1M | USB HS differential input/output pair | Port facing upstream (e.g., USB host or hub); bidirectional, host/device agnostic. |
| D2P / D2M | USB HS differential input/output pair | Port facing downstream (e.g., USB receptacle or cable); interchangeable with D1P/D1M. |
| RSTN | Active-low reset enable | Held low to force shutdown (13–80 µA); must be stabilized ≥100 µs after VCC reaches spec before de-assertion. |
| EQ | AC boost configuration input | Pulldown resistor selects one of four AC gain levels; sampled once at RSTN release, not dynamic. |
| DC_BOOST / ENA_HS | Tri-level DC gain control / HS mode flag | Configures DC offset (40/60/80 mV) at reset; outputs ENA_HS high when HS handshake completes successfully. |
| SCL/CD | I²C clock / connection detect output | In non-I²C mode: open-drain CD flag asserts upon DP/DM pull-up detection (e.g., device attach). |
| SDA | I²C data bidirectional | I²C address 0x2C; used for register readback and dynamic EQ/DCB reconfiguration in I²C mode. |
| VCC | Primary supply input | 3.3-V nominal; powers all circuitry including integrated 1.8-V LDO regulator (VREG). |
| VREG | 1.8-V LDO output | Supplies internal core logic only during HS mode; requires 0.1-µF decoupling capacitor to GND. |
| GND | Power and signal reference | Common return path; thermal pad connected to PCB ground plane for enhanced thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| USB 2.0/OTG/BC 1.2 Compatibility | Fully transparent to LS/FS signaling and BC charging handshakes; no protocol layer intervention required. |
| Host/Device-Agnostic Port Mapping | D1P/D1M and D2P/D2M are functionally identical and swappable-enables single BOM for host- or device-side designs. |
| Zero-Disruption PCB Layout | DP/DM traces pass uninterrupted beneath the X2QFN package; no vias or stubs needed-no redesign if unpopulated. |
| Automotive Qualification | AEC-Q100 Grade 2 qualified with HBM ±2000 V, CDM ±500 V, and –40°C to 105°C operation for front-end infotainment systems. |
| Ultra-Low Power HS Suspend | 0.55 mA typical current draw in HS suspend state-critical for meeting automotive ISO 16750-2 quiescent current budgets. |
Applications
| Automotive Infotainment Head Unit | Notebook Docking Station |
|---|---|
Use Scenario: Restoring USB 2.0 HS signal integrity between SoC and rear-panel USB-A receptacle over 80-mm FR4 traces with >12 dB loss at 240 MHz. IC Role / Device Role / Timing Role: Signal conditioner placed pre-receptacle to boost eye opening and pass USB-IF near-end eye mask compliance testing. Use Value: Enables reliable 480 Mbps data transfer to external peripherals without requiring SoC retiming or costly multi-layer impedance-controlled routing. | Use Scenario: Extending effective USB 2.0 reach from laptop USB port to docking station's downstream ports using active 2-m cable assembly. IC Role / Device Role / Timing Role: HS repeater positioned at dock's upstream interface to compensate for pre-cable channel loss and maintain jitter margin. Use Value: Supports certified 2-m active cable operation (beyond USB spec's passive 5-m limit) while maintaining backward compatibility with LS/FS devices. |
| Tablet USB-C Adapter | Industrial Backplane Interface |
Use Scenario: Enabling USB 2.0 HS support in compact USB-C to legacy-A adapter where PCB space limits trace length optimization. IC Role / Device Role / Timing Role: Signal integrity enhancer integrated into adapter's USB 2.0 lane path, configured via EQ/DC_BOOST strapping for minimal footprint. Use Value: Achieves USB-IF electrical compliance in <100-mm² adapter PCB area-eliminates need for larger, more expensive retimers. | Use Scenario: Maintaining HS signal fidelity across 150-mm backplane traces connecting CPU module to I/O carrier in ruggedized industrial PC. IC Role / Device Role / Timing Role: Channel loss compensator placed mid-backplane to counteract dielectric loss and via discontinuities in multi-layer stackup. Use Value: Delivers consistent 480 Mbps link stability across temperature (-40°C to 85°C) and vibration-reducing field failure rates in deployed systems. |
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 |
|---|---|---|---|
| TS3USB221A | Passive 2-channel USB 2.0 switch (no equalization); supports LS/FS only; no HS signal restoration capability. | Used for USB port multiplexing-not signal integrity enhancement; cannot replace TUSB212QRWBTQ1 in HS loss compensation roles. | Select only when switching-not conditioning-is required; verify HS path remains compliant without active boost. |
| PI3USB30532 | USB 3.0/2.0 dual-mode redriver with integrated 5-Gbps SerDes; higher power (35 mA active), larger QFN-24 package. | Targets USB 3.x systems needing backward-compatible HS boosting; over-specified for USB 2.0-only designs. | Choose when future-proofing for USB 3.0 or when higher channel count (dual-lane) is needed; avoid for cost- and space-constrained 2.0-only applications. |
Compared with TS3USB221A and PI3USB30532, the TUSB212QRWBTQ1 uniquely delivers dedicated, low-power, automotive-grade USB 2.0 HS signal conditioning in a 1.6×1.6-mm footprint-making it optimal for infotainment, docking, and compact adapter designs where LS/FS transparency and minimal BOM impact are critical.
Availability
TUSB212QRWBTQ1 is available at Aetrix Electronics and suitable for automotive infotainment head units, notebook docking stations, and industrial backplane interfaces requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for TUSB212QRWBTQ1 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 delivering analog and embedded processing solutions for automotive, industrial, personal electronics, and communications markets.
The TUSB212-Q1 product line was developed specifically to solve USB 2.0 High-Speed signal integrity degradation in automotive and space-constrained consumer platforms-prioritizing LS/FS transparency, ultra-low power, and seamless PCB integration.
FAQ
What is the primary function of the TUSB212QRWBTQ1 in a USB 2.0 system?
The TUSB212QRWBTQ1 functions as a High-Speed (480 Mbps) signal conditioner that compensates for inter-symbol interference (ISI) loss in USB 2.0 transmission channels. It applies programmable AC and DC boost to restore eye diagram integrity at the connector without altering Low Speed or Full Speed signal characteristics-ensuring full USB protocol transparency while enabling compliance with USB-IF electrical specifications.
How does the TUSB212QRWBTQ1 handle USB Low Speed and Full Speed traffic?
The TUSB212QRWBTQ1 is explicitly designed to be agnostic to USB Low Speed (1.5 Mbps) and Full Speed (12 Mbps) signaling. Its patent-pending architecture passes LS/FS differential signals unchanged-preserving timing, voltage levels, and protocol behavior-while only applying equalization to High-Speed (480 Mbps) data. This ensures full backward compatibility and eliminates any risk of disrupting enumeration or charging handshakes governed by BC 1.2 or OTG 2.0.
Can the TUSB212QRWBTQ1 be used in both host-side and device-side USB configurations?
Yes, the TUSB212QRWBTQ1 is host/device agnostic: its D1P/D1M and D2P/D2M ports are functionally interchangeable and support bidirectional HS signal flow. In a host-side application, D1P/D1M connect to the USB controller and D2P/D2M to the receptacle; in device-side use, the orientation reverses. The CD and ENA_HS status flags operate identically regardless of orientation, simplifying schematic reuse across platform variants.
What are the power consumption characteristics of the TUSB212QRWBTQ1 in different operating modes?
The TUSB212QRWBTQ1 delivers ultra-low power operation: 0.55–1.5 mA in HS suspend mode, 14–22 mA in HS idle, and 22–30 mA during active 480 Mbps traffic-all at 3.3 V. In disconnect state (no attached device), it draws just 0.7–1.5 mA. These values meet stringent automotive quiescent current requirements and enable deployment in always-on USB ports without compromising system-level power budgets.
Is the TUSB212QRWBTQ1 compatible with USB On-The-Go (OTG) and Battery Charging (BC) protocols?
Yes, the TUSB212QRWBTQ1 is fully compatible with USB OTG 2.0 and BC 1.2 specifications. Its LS/FS transparency ensures unmodified ID pin detection, session request protocol (SRP), and host negotiation sequences. Likewise, BC 1.2 D+–D− voltage handshakes-including SDP/CDP/DCP identification-are preserved end-to-end, allowing certified charging functionality to operate seamlessly through the signal conditioner.
TUSB212QRWBTQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-XFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Signal Processing
- Interface:
- USB
- Voltage - Supply:
- 3V ~ 3.6V
- Supplier Device Package:
- 12-X2QFN (1.6x1.6)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
TUSB212QRWBTQ1 FAQ
1.How can I place an order for TUSB212QRWBTQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB212QRWBTQ1 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 TUSB212QRWBTQ1 reliable?
The price and inventory of TUSB212QRWBTQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB212QRWBTQ1 is usually 5 days.
3.What payment methods are accepted for TUSB212QRWBTQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB212QRWBTQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB212QRWBTQ1?
TUSB212QRWBTQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB212QRWBTQ1 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 TUSB212QRWBTQ1?
For technical support, including TUSB212QRWBTQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB212QRWBTQ1 requirements.
6.How does Aetrix verify that TUSB212QRWBTQ1 is sourced from the original manufacturer or authorized distributors?
All TUSB212QRWBTQ1 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 TUSB212QRWBTQ1 meets industry standards.
7.What is the process for return or replacement of TUSB212QRWBTQ1?
All TUSB212QRWBTQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TUSB212QRWBTQ1, 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 TUSB212QRWBTQ1 part is unused and in its original packaging.
Return procedure for TUSB212QRWBTQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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