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Texas Instruments TUSB212QRWBRQ1
- Part No.:
- TUSB212QRWBRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 12-XFQFN
- Datasheet:
-
TUSB212QRWBRQ1.pdf
- Description:
- IC INTERFACE SPECIALIZED 12X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,692
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Product details
Overview
TUSB212QRWBRQ1 from Texas Instruments is an automotive-qualified USB 2.0 High-Speed signal conditioner designed to compensate for inter-symbol interference (ISI) in lossy transmission channels. It supports LS/FS/HS signaling, provides programmable AC/DC boost (4 AC levels, 3 DC levels), and operates across –40°C to 105°C ambient. It enables USB HS eye mask compliance in infotainment head units with up to 5 m pre-channel or 2 m post-channel cable loss.
For engineers reviewing the TUSB212QRWBRQ1 datasheet, TUSB212QRWBRQ1 pinout, TUSB212QRWBRQ1 application, or TUSB212QRWBRQ1 equivalent, key selection considerations include its host/device-agnostic D1P/M and D2P/M ports, RSTN-controlled shutdown, I²C or pin-strapped configuration, and automotive-grade ESD robustness (HBM ±2 kV, CDM ±500 V).
Technical Context
The TUSB212QRWBRQ1 implements a patent-pending signal conditioning architecture that leaves LS and FS signals unaltered while applying selectable AC and DC gain to HS differential pairs. Its dual-port design (D1P/D1M and D2P/D2M) allows placement either between host and connector or within cascaded channel topologies.
Configuration is supported via pin-strapping (EQ for AC boost, DC_BOOST for DC offset, RSTN for enable/disable, SCL/CD for connection detection) or 100 kHz I²C interface (7-bit address 0x2C). The device features automatic mode detection (LS/FS/HS/shutdown) and outputs status flags (CD, ENA_HS) for system-level control.
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. |
| Operating Temperature | –40°C to 105°C - Qualified for Grade 2 automotive ambient conditions, supporting under-dash and center-console deployment. |
| HS Bit Rate | 480.24 Mbps - Matches USB 2.0 High-Speed specification, enabling full-bandwidth data transfer without protocol alteration. |
| AC Boost Levels | 4 settings via EQ pin pulldown resistor - Enables precise compensation for varying PCB trace loss (e.g., 1.4 kΩ = Level 1, 3.83 kΩ = Level 2). |
| DC Boost Settings | 40 mV / 60 mV / 80 mV via DC_BOOST pin strap - Provides adjustable DC offset to restore signal baseline integrity after capacitive channel attenuation. |
| HS Active Current | 22–30 mA at 480 Mbps - Low power consumption during active HS operation, minimizing thermal impact in space-constrained modules. |
| ESD Rating | HBM ±2000 V, CDM ±500 V - Meets automotive robustness requirements for handling and board-level reliability. |
Pinout & Package
X2QFN-12 (RWB) package, 1.60 mm × 1.60 mm body size, 0.4 mm pitch, wettable flank terminations. Designed for high-density automotive PCBs with minimal footprint and no signal vias required - DP/DM traces route directly underneath the device.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D1P / D1M | USB HS differential input/output pair | Connects to upstream side (e.g., USB PHY/host); bidirectional, agnostic to host/device role. |
| D2P / D2M | USB HS differential input/output pair | Connects to downstream side (e.g., USB receptacle); interchangeable with D1P/D1M for flexible layout. |
| RSTN | Active-low reset and enable | Pulls device into shutdown (≤13 µA) when low; must be held low until VCC stabilizes ≥3 V. |
| EQ | AC boost configuration input | Four-level AC gain selection via external pulldown resistor; latched at RSTN de-assertion. |
| DC_BOOST / ENA_HS | Tri-level DC boost input / HS mode flag output | Configures DC offset (40/60/80 mV) pre-reset; outputs ENA_HS high upon successful HS handshake. |
| SCL/CD | I²C clock / connection detect output | In non-I²C mode: CD asserts high on DP/DM pull-up detection (device attach); open-drain, requires external pullup. |
| SDA | I²C data bidirectional | Supports 100 kHz I²C configuration (address 0x2C); reserved in pin-strapped mode. |
| VREG | 1.8 V LDO output | Supplies internal core only during HS mode; requires 0.1 µF capacitor to GND for stability. |
| VCC | Main supply input | 3.3 V nominal input; decoupling with 100 nF capacitor recommended per datasheet layout guidelines. |
| GND | Ground reference | Single ground plane connection; critical for signal integrity and ESD path integrity. |
Key Features
| Feature | Design Value |
|---|---|
| USB 2.0/OTG 2.0/BC 1.2 compatibility | Preserves full protocol stack transparency - no enumeration delay, no handshake modification, no BC charging negotiation impact. |
| LS/FS signal pass-through | Zero insertion loss and no waveform distortion for Low/Full Speed traffic, ensuring backward compatibility with legacy peripherals. |
| Host/device-agnostic port pairing | D1P/D1M and D2P/D2M are functionally identical and swappable - simplifies schematic reuse across host- and device-side designs. |
| Ultra-low disconnect power | 0.7–1.5 mA typical current draw when no device attached - reduces standby power in always-on automotive USB ports. |
| Automotive qualification | AEC-Q100 Grade 2 certified with HBM H1C and CDM C3 classification - validated for production use in safety-critical vehicle systems. |
Applications
| Automotive Infotainment Head Unit | Notebook Docking Station |
|---|---|
|
Use Scenario: USB 2.0 HS link between SoC and rear-panel Type-A receptacle in center-stack head unit with 80 mm FR4 trace + 2 m cable. IC Role / Device Role / Timing Role: Signal conditioner restoring eye opening at connector; transparent to USB protocol timing and enumeration sequence. Use Value: Passes USB-IF HS near-end eye mask without redesigning PCB stack-up or adding costly connectors. |
Use Scenario: Extending USB 2.0 HS reach from laptop docking port to peripheral hub with 50 cm flex cable and 30 cm PCB trace. IC Role / Device Role / Timing Role: Channel loss compensator placed between host controller and receptacle; maintains <1 ns jitter accumulation. Use Value: Enables reliable 480 Mbps operation beyond standard 3 m cable limit, avoiding USB 3.0 upgrade cost. |
| Active USB Cable Extender | Industrial Display Backplane |
|
Use Scenario: Embedded in 5 m active USB A-to-A extension cable for factory-floor HMIs with EMI-prone environment. IC Role / Device Role / Timing Role: Pre-channel loss compensator; configured via EQ/DC_BOOST straps for fixed gain profile. Use Value: Restores signal amplitude and edge fidelity to meet USB HS electrical spec at far end, eliminating eye closure. |
Use Scenario: Signal integrity guard for USB 2.0 HS interface between main controller board and remote LCD module over 150 mm 90 Ω differential trace. IC Role / Device Role / Timing Role: On-board HS repeater with automatic mode detection; CD pin used to trigger display wake-up. Use Value: Eliminates need for expensive controlled-impedance backplane redesign while maintaining HS link reliability. |
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 |
|---|---|---|---|
| TS3USB221ERSER | Passive 2-channel USB 2.0 switch with 6 Ω on-resistance; no signal boosting, no AC/DC gain, no HS eye enhancement. | Used for USB port multiplexing, not signal restoration; unsuitable for loss compensation or eye mask compliance. | Select only if signal integrity is already sufficient and switching functionality is primary requirement. |
| USB2514B-AEZG | USB 2.0 hub controller with integrated PHY; adds packet buffering, enumeration management, and 4-port expansion - not a transparent signal conditioner. | Requires firmware, changes USB topology (adds hub layer), increases latency; incompatible with direct PHY-to-receptacle paths. | Choose only when port expansion or host-side hub functionality is needed, not for passive channel conditioning. |
Compared with TS3USB221ERSER and USB2514B-AEZG, the TUSB212QRWBRQ1 uniquely delivers transparent, protocol-agnostic HS signal restoration with configurable AC/DC gain - essential for passing USB-IF electrical compliance in lossy automotive and industrial channels where passive switches or active hubs cannot substitute.
Availability
TUSB212QRWBRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, industrial display backplanes, and notebook docking stations requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TUSB212QRWBRQ1 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, with leadership in automotive, industrial, and personal electronics markets.
The TUSB212QRWBRQ1 belongs to TI's automotive-qualified USB signal conditioning portfolio, engineered specifically to solve high-speed signal integrity degradation in electrically noisy, thermally demanding vehicle environments.
FAQ
What is the primary function of the TUSB212QRWBRQ1 in a USB 2.0 system?
The TUSB212QRWBRQ1 functions as a transparent USB 2.0 High-Speed signal conditioner that compensates for inter-symbol interference (ISI) caused by channel loss - without altering LS/FS signaling or USB protocol behavior. It restores eye diagram integrity at the connector to ensure USB-IF HS electrical compliance, making it essential for automotive infotainment and industrial applications with long or lossy traces.
Does the TUSB212QRWBRQ1 require firmware or driver support to operate?
No, the TUSB212QRWBRQ1 operates transparently in hardware and requires no firmware, drivers, or host-side software intervention. It automatically detects LS/FS/HS modes and applies conditioning only to HS signals. Configuration is done via pin strapping (EQ, DC_BOOST, RSTN) or optional I²C - no enumeration delay or protocol overhead is introduced to the TUSB212QRWBRQ1 data path.
Can the TUSB212QRWBRQ1 be used in both host-side and device-side USB configurations?
Yes, the TUSB212QRWBRQ1 is explicitly host/device-agnostic: its D1P/D1M and D2P/D2M ports are interchangeable and function identically regardless of orientation. It supports both host-side (e.g., head unit to receptacle) and device-side (e.g., tablet to cable) placements, and passes USB On-The-Go (OTG) and Battery Charging (BC) protocols unchanged - confirmed in TI's SLLSF35 datasheet Section 1 and 7.1.
How does the TUSB212QRWBRQ1 handle USB Low Speed and Full Speed traffic?
The TUSB212QRWBRQ1 leaves Low Speed (1.5 Mbps) and Full Speed (12 Mbps) signals completely unaltered - no gain, no delay, no waveform shaping. Its patent-pending architecture bypasses LS/FS traffic while applying selective AC/DC boost only to High-Speed (480 Mbps) differential pairs. This ensures full backward compatibility with legacy USB 1.1 peripherals without affecting timing or signal integrity.
What are the key layout requirements for optimal performance of the TUSB212QRWBRQ1?
TI specifies that DP/DM traces must route uninterrupted beneath the TUSB212QRWBRQ1 X2QFN-12 package - no vias or breaks - to maintain 90 Ω differential impedance. A 0.1 µF capacitor is required on VREG, and RSTN must be stabilized with either a microcontroller-driven clean reset or an RC network (≥100 µs time constant). These requirements are documented in Sections 10.1 and 9 of the SLLSF35 datasheet.
TUSB212QRWBRQ1 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
TUSB212QRWBRQ1 FAQ
1.How can I place an order for TUSB212QRWBRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB212QRWBRQ1 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 TUSB212QRWBRQ1 reliable?
The price and inventory of TUSB212QRWBRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB212QRWBRQ1 is usually 5 days.
3.What payment methods are accepted for TUSB212QRWBRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB212QRWBRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB212QRWBRQ1?
TUSB212QRWBRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB212QRWBRQ1 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 TUSB212QRWBRQ1?
For technical support, including TUSB212QRWBRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB212QRWBRQ1 requirements.
6.How does Aetrix verify that TUSB212QRWBRQ1 is sourced from the original manufacturer or authorized distributors?
All TUSB212QRWBRQ1 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 TUSB212QRWBRQ1 meets industry standards.
7.What is the process for return or replacement of TUSB212QRWBRQ1?
All TUSB212QRWBRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TUSB212QRWBRQ1, 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 TUSB212QRWBRQ1 part is unused and in its original packaging.
Return procedure for TUSB212QRWBRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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