TUSB1142IRNQR Texas Instruments Integrated Circuit (QFN) In Stock
TUSB1142IRNQR is a USB Type-C 10 Gbps USB 3.2 adaptive linear redriver with 2:1/1:2 mux/demux function in QFN-40 package. It features 2 differential channels and 4-bit driver for signal conditioning. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- QFN
- Pin Count
- 999
- Lifecycle
- ACTIVE
- Datasheet
- TUSB1142IRNQR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.4647(MOQ 5)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Adaptive linear equalization up to 10 Gbps per lane restores USB 3.2 Gen 2 signal integrity over long or lossy PCB traces without active digital retiming
- Integrated 2:1/1:2 mux/demux supports USB Type-C cable flip orientation detection and routing, simplifying reversible-connector system design
- 2 differential channel paths with 4-bit programmable drive strength allow fine-tuned signal conditioning for different cable lengths and board topologies
- QFN-40 (JEDEC R-PQCC-N40) package with differential I/O minimizes stub lengths and EMI in high-speed 10 Gbps USB layouts
Applications
TUSB1142IRNQR is designed for USB Type-C port expansion in laptops, docking stations, and monitors where 10 Gbps USB 3.2 signals must be routed across PCB traces longer than the USB loss budget allows. Its adaptive equalization and mux/demux architecture also make it ideal for USB Type-C switch/hub silicon that must support both cable orientations without signal quality degradation. The device is further used in thunderbolt accessories and USB-C docking solutions requiring transparent 10 Gbps signal conditioning with minimal power overhead.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Differential Output | YES |
| Driver Number of Bits | 4 |
| High Level Input Current-Max | 0.00006A |
| Input Characteristics | DIFFERENTIAL |
| Interface IC Type | INTERFACE CIRCUIT |
| JESD-30 Code | R-PQCC-N40 |
| JESD-609 Code | e4 |
| Number of Channels | 2 |
| Number of Functions | 4 |
| Output Characteristics | DIFFERENTIAL |
| Output Low Current-Max | 0.02A |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC40,.16X25,16 |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Receive Delay-Max | 0.3ns |
| Receiver Number of Bits | 4 |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.4mm |
| Terminal Position | QUAD |
| Transmit Delay-Max | 0.3ns |
| Package | QFN |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TUSB1142IRNQR:
Frequently Asked Questions
At what maximum data rate does TUSB1142IRNQR operate, and which USB generation does it support?
TUSB1142IRNQR supports data rates up to 10 Gbps per differential lane, making it compliant with USB 3.2 Gen 2 signaling. This 10 Gbps capability enables it to transparently condition SuperSpeed+ USB signals between a host controller and a Type-C connector in laptops, docking stations, and monitors without introducing latency or protocol overhead.
How does the 2:1/1:2 mux/demux function in TUSB1142IRNQR simplify USB Type-C reversible connector designs?
USB Type-C connectors can be inserted in either orientation, requiring the host to route 10 Gbps differential pairs to different physical pins depending on detected polarity. TUSB1142IRNQR's integrated 2:1 or 1:2 mux/demux automatically steers the 2 differential channel paths to match the detected cable flip, eliminating a separate discrete analog switch and reducing board component count by at least 1 active device per port.
What is the programmable drive strength resolution of TUSB1142IRNQR, and how does it help optimize signal quality?
TUSB1142IRNQR provides 4-bit programmable drive strength (16 discrete levels) for each of its 2 differential channel outputs. Engineers can tune output emphasis in increments to compensate for specific board trace losses—for example, recovering 3 dB to 6 dB of insertion loss at 5 GHz on a 10 cm PCB trace—without external equalizer components, enabling consistent eye diagram compliance across varying PCB stack-ups.
For a USB-C docking station design, when is TUSB1142IRNQR a better choice than a passive trace with no redriver?
USB 3.2 Gen 2 has a maximum channel loss budget of approximately 10 dB at 5 GHz. When a docking station routes the Type-C connector through a multiplexer IC, power delivery controller, and 15 cm or more of PCB trace, cumulative insertion loss routinely exceeds 10 dB, causing bit errors without a redriver. TUSB1142IRNQR's adaptive linear equalizer restores the eye opening to USB compliance levels across 2 differential channels, making it mandatory for any docking station where total channel loss exceeds the 10 dB budget.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 5+ | $3.4086 | $17.04 |
| 20+ | $2.6220 | $52.44 |
| 50+ | $2.4647 | $123.23 |
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