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© NXP Components | September 13, 2011

NXP with USB 3.0 SuperSpeed Redriver

NXP Semiconductorshas released a USB3.0 SuperSpeed redriver, the PTN36241B – a dual-channel device that supports 5 Gbps per channel with optional settings that provide a high level of extendability.
As computing systems become faster, signal integrity tends to deteriorate more rapidly than in slower systems. The PTN36241B redriver provides signal equalization on a weakened signal, followed by transmit de-emphasis, thus maximizing link performance, enhancing signal integrity and improving system reliability.

To support applications that require a greater level of configurability, the PTN36241B redriver delivers intelligent multiplexing of the I2C-bus interface with quinary (5-level) pins for unmatched flexibility. The PTN36241B redriver supports auto-compliant technology that will enable compliance testing, controlled by the internal state machine, eliminating the need for a separate hardware compliance pin.

Technical Features:
“USB 3.0 is 10 times faster than USB 2.0, but a major drawback has been a corresponding loss of signal integrity over longer cable lengths. To compensate for a long trace between the USB 3.0 controller and connector, it is becoming more common to require a redriver, particularly as manufacturers such as Intel start to integrate USB3 directly into the chipset,” said Grahame Cooney, general manager, High Speed Interface product line, NXP Semiconductors.


- Supports USB3.0 SuperSpeed at 5Gbps
- Intelligent I2C-bus multiplexing quinary (5-level) logic configuration options delivering ultimate flexibility
- Signal integrity enhancements compensate for high frequency losses and inter-symbol interference
- Selectable output swing, transmit emphasis, receive equalization, and input signal threshold improve device flexibility
- Rx termination indication and detection enhance Hot Plug capability
- LFPS detection and forwarding
- Intelligent Power management with multiple power saving modes reduce power dissipation
- ESD protection: HBM 8 kV, CDM 1 kV
- 3.3-V power supply
- Available in a HVQFN24 4-mm x 4-mm package with 0.5-mm pitch

Availability and Pricing

- The NXP PTN36241B redriver is available immediately. Pricing is contingent on volume, starting at USD 1.00 for quantities under 1'000.
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Image © NXP

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