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NXP Semiconductors PTN36221AHXZ
- Part No.:
- PTN36221AHXZ
- Manufacturer:
- NXP Semiconductors
- Category:
- Signal Buffers, Repeaters, Splitters
- Package:
- 12-XFQFN
- Datasheet:
-
PTN36221AHXZ.pdf
- Description:
- IC REDRIVER USB 3.0 1CH 12X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,675
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Product details
Overview
PTN36221AHXZ from NXP Semiconductors is a single-channel SuperSpeed USB 3.0 redriver IC that enhances signal integrity via programmable receive equalization (3/6/9 dB) and transmit de-emphasis (0/−3.5/−6 dB) at 5 Gbit/s data rate. It operates from a 1.8 V ±5 % supply, delivers 1000 mVpp differential output swing (adjustable), and supports automatic receiver termination detection for USB 3.0 active cables and mobile docking interfaces.
For engineers reviewing the PTN36221AHXZ datasheet, PTN36221AHXZ pinout, PTN36221AHXZ application, or PTN36221AHXZ equivalent, key selection criteria include its low-power USB 3.0 U2/U3 state operation (5 mW), 0.5 ns differential propagation delay, integrated 72–120 Ω differential termination, and X2QFN12 1.6 mm × 1.6 mm package compatibility with high-density PCB layouts.
Technical Context
The PTN36221AHXZ implements a fully analog redriver architecture with trinary-configurable EQ, DE, and OS pins enabling per-link optimization of ISI compensation and channel pre-compensation without host software intervention. Its self-biasing differential I/Os support AC-coupled USB 3.0 lanes and automatic squelch detection for electrical idle transitions.
Power management is hardware-driven: EN pin controls deep power-down (18 µW), while bus electrical conditions autonomously trigger U2/U3 (5 mW) and no-connection (1 mW) states. The device does not decode USB protocol commands but responds to physical-layer signaling including LFPS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 5 Gbit/s - Full SuperSpeed USB 3.0 compliance; enables Gen1 link operation without protocol translation. |
| Supply Voltage | 1.8 V ±5 % - Matches standard USB 3.0 PHY voltage rails; eliminates need for dedicated LDO in most host/peripheral designs. |
| Active Power | 97 mW - Enables thermal design within 138.5 °C/W junction-to-ambient limit for compact mobile platforms. |
| U2/U3 Power | 5 mW - Reduces system standby power without sacrificing USB link recovery latency (≤115 µs exit time). |
| Differential Propagation Delay | 0.5 ns - Minimizes timing skew across redriven lanes; preserves USB 3.0 eye diagram integrity at test point C. |
| Output Jitter (p-p) | 0.19 UI - Meets USB 3.0 total jitter budget (≤0.3 UI) when driven by source with ≤21 ps p-p jitter. |
| ESD Robustness | 8 kV HBM on high-speed pins - Ensures reliability during board handling and cable hot-plug events. |
Pinout & Package
X2QFN12 package: 1.6 mm × 1.6 mm × 0.35 mm body, 0.4 mm pitch, 12-terminal leadless plastic quad flat package with exposed thermal pad (SOT1355-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RXP / RXN | Self-biasing differential input pair | Accepts AC-coupled USB 3.0 Rx signals; internal DC common-mode impedance 18–30 Ω enables robust termination detection. |
| TXP / TXN | Self-biasing differential output pair | Drives AC-coupled USB 3.0 Tx path; 72–120 Ω differential output impedance matches standard PCB trace routing. |
| EN | CMOS enable input (active HIGH) | Internal 230 kΩ pull-up; asserts deep power-down (18 µW) when LOW; start-up time ≤6 ms after HIGH assertion. |
| EQ / DE / OS | Trinary configuration inputs | Set equalization gain (3/6/9 dB), de-emphasis level (0/−3.5/−6 dB), and output swing (900/1000/1100 mVpp) via voltage levels or open-circuit. |
| VDD / VSS | Power and ground terminals | 1.8 V supply with 57 mA typical active current; VSS provides return path for both analog and digital circuitry. |
| NCT1 / NCT2 | Test pins | Leave open or grounded for functional mode; no user-accessible configuration or monitoring function in normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Receive Equalization | 3/6/9 dB gain at 2.5 GHz - Recovers inter-symbol interference from >15-inch FR4 traces or passive cable losses. |
| Configurable Transmit De-emphasis | 0/−3.5/−6 dB - Compensates high-frequency attenuation in long PCB runs or active cable assemblies. |
| Adjustable Output Swing | 900/1000/1100 mVpp - Optimizes signal margin against receiver sensitivity thresholds across varying channel loss profiles. |
| Automatic Receiver Termination Detection | ZRX_DC = 18–30 Ω sensing - Enables plug-and-play operation without host firmware coordination for USB 3.0 hot-plug scenarios. |
| USB 3.0 Low-Power State Management | U2/U3 (5 mW), no-connection (1 mW), deep power-down (18 µW) - Reduces system-level power without USB link layer awareness. |
Applications
| Smartphone/Tablet Docking Interface | Active USB 3.0 Cable Assembly |
|---|---|
|
Use Scenario: Signal integrity restoration between smartphone SoC and external dock supporting USB 3.0 peripherals and DisplayPort Alt Mode. IC Role / Device Role / Timing Role: Redriver placed between SoC USB 3.0 PHY and connector to compensate for 8–12 dB channel loss from flex PCB and EMI shielding. Use Value: Enables 5 Gbit/s link stability over 150 mm internal routing while maintaining <0.19 UI total jitter at receiver input. |
Use Scenario: Embedded redriver in USB 3.0 active cable to extend reach beyond passive cable limits (≥3 m). IC Role / Device Role / Timing Role: Single-channel redriver on each differential pair (Tx/Rx) with independent EQ/DE/OS tuning per lane. Use Value: Achieves full SuperSpeed compliance over 5 m cable with <100 mVpp residual jitter at host/receiver end. |
| Notebook USB 3.0 Expansion Port | USB 3.0 Peripheral Hub Controller Interface |
|
Use Scenario: Signal conditioning for downstream USB 3.0 ports on ultrabook expansion docks with mixed-length trace routing. IC Role / Device Role / Timing Role: Redriver placed at hub controller upstream port to restore signal quality degraded by split-plane routing and connector parasitics. Use Value: Maintains link training success rate >99.9% across temperature range (−40 °C to +85 °C) with automatic termination detection. |
Use Scenario: Signal enhancement between USB 3.0 hub controller ASIC and external high-speed storage enclosure interface. IC Role / Device Role / Timing Role: Redriver deployed on hub's upstream-facing port to counteract insertion loss from backplane connectors and long ribbon cables. Use Value: Delivers 1000 mVpp output swing with 0.5 ns propagation delay, ensuring setup/hold timing margins meet USB 3.0 specification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 3.0 redriver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TUSB211IRWBR | Single-channel, 5 Gbit/s, 1.8 V operation; fixed 6 dB EQ and −3.5 dB DE; no OS adjustment; 12-pin WQFN (2 mm × 2 mm). | Lacks trinary configurability; suited for cost-sensitive designs where channel loss is predictable and stable. | Choose TUSB211IRWBR when simplified BOM and reduced layout complexity outweigh need for per-link tuning. |
| PI3USB30532ZLEX | Single-channel, 5 Gbit/s, 3.3 V supply; adjustable EQ/DE; 16-pin QFN (3 mm × 3 mm); integrated 100 Ω termination. | Requires 3.3 V rail; larger footprint; higher active power (120 mW); supports wider operating temperature (−40 °C to +105 °C). | Choose PI3USB30532ZLEX for industrial systems needing extended temperature range and 3.3 V compatibility. |
Compared with PTN36221AHXZ, TUSB211IRWBR offers lower cost and smaller size but sacrifices configurability, while PI3USB30532ZLEX provides wider temp range and 3.3 V operation at the expense of higher power and board area-making PTN36221AHXZ optimal for space-constrained, battery-powered USB 3.0 endpoints.
Availability
PTN36221AHXZ is available at Aetrix Electronics and suitable for smartphone docking interfaces, active USB 3.0 cable assemblies, and notebook expansion port designs requiring stable component supply across high-volume production cycles.
Supply support for PTN36221AHXZ 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
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and consumer electronics, with leadership in USB, PCIe, and high-speed interface IP.
The PTN36221AHXZ belongs to NXP's SuperSpeed USB redriver product line, designed specifically to address signal integrity challenges in compact, power-sensitive USB 3.0 endpoints such as mobile accessories and thin-client docking stations.
FAQ
What is the primary function of the PTN36221AHXZ in a USB 3.0 system?
The PTN36221AHXZ functions as a single-channel analog redriver that restores signal integrity in SuperSpeed USB 3.0 links by applying receive equalization to compensate for inter-symbol interference and transmit de-emphasis to pre-compensate for channel loss. It operates transparently without protocol awareness, making it ideal for active cables, docking stations, and mobile peripheral interfaces where 5 Gbit/s signal fidelity must be maintained across lossy PCB traces or cables. The PTN36221AHXZ achieves this while consuming only 97 mW in active mode.
How does the PTN36221AHXZ manage power during USB 3.0 low-power states?
The PTN36221AHXZ autonomously enters low-power states based on USB 3.0 bus electrical conditions-not protocol commands-reducing power to 5 mW in U2/U3 states, 1 mW with no connection, and 18 µW in deep power-down when EN is LOW. This hardware-driven scheme eliminates host software intervention while maintaining sub-115 µs exit latency to active state. The PTN36221AHXZ achieves this using internal squelch detection and termination sensing circuits, ensuring seamless USB link resumption without firmware coordination.
What are the configurable settings for equalization, de-emphasis, and output swing on the PTN36221AHXZ?
The PTN36221AHXZ provides trinary control of three key parameters via dedicated pins: EQ pin selects 3 dB, 6 dB (default), or 9 dB receive equalization gain; DE pin sets transmit de-emphasis to 0 dB, −3.5 dB (default), or −6 dB; OS pin adjusts differential output swing to 900 mVpp, 1000 mVpp (default), or 1100 mVpp. These settings are configured using voltage levels (LOW/HIGH) or open-circuit conditions, enabling precise per-link tuning without I²C or SPI interface. All configurations are applied within 115 ms of pin change, as verified in the PTN36221AHXZ datasheet.
Does the PTN36221AHXZ require external termination resistors?
No, the PTN36221AHXZ integrates termination resistors on both transmit and receive differential paths, providing 72–120 Ω DC differential impedance matching for standard USB 3.0 channel requirements. It also features automatic receiver termination detection that senses ZRX_DC between 18 Ω and 30 Ω to confirm load presence-enabling hot-plug readiness without external components. This integration reduces BOM count and PCB area versus discrete termination solutions, and is explicitly confirmed in the PTN36221AHXZ pin description and characteristics tables.
What package type and dimensions does the PTN36221AHXZ use?
The PTN36221AHXZ is housed in an X2QFN12 package (SOT1355-1) measuring 1.6 mm × 1.6 mm × 0.35 mm with 0.4 mm pitch and 12 terminals, including an exposed thermal pad. This super-thin quad flat no-lead package supports reflow soldering per J-STD-020D lead-free profile (peak temp 260 °C) and is rated MSL 1. The footprint matches standard USB 3.0 layout constraints for mobile and ultra-thin devices, and the package outline, solder paste stencil, and thermal pad guidelines are fully documented in the PTN36221AHXZ datasheet Section 15.
PTN36221AHXZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 12-XFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Buffer, ReDriver
- Applications:
- USB 3.0
- Input:
- -
- Output:
- -
- Data Rate (Max):
- -
- Number of Channels:
- 1
- Delay Time:
- 0.5ns
- Signal Conditioning:
- Input Equalization, Output De-Emphasis
- Capacitance - Input:
- -
- Voltage - Supply:
- 1.71V ~ 1.89V
- Current - Supply:
- 57mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-X2QFN (1.6x1.6)
PTN36221AHXZ FAQ
1.How can I place an order for PTN36221AHXZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PTN36221AHXZ 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 PTN36221AHXZ reliable?
The price and inventory of PTN36221AHXZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTN36221AHXZ is usually 5 days.
3.What payment methods are accepted for PTN36221AHXZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTN36221AHXZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTN36221AHXZ?
PTN36221AHXZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTN36221AHXZ 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 PTN36221AHXZ?
For technical support, including PTN36221AHXZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTN36221AHXZ requirements.
6.How does Aetrix verify that PTN36221AHXZ is sourced from the original manufacturer or authorized distributors?
All PTN36221AHXZ 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 PTN36221AHXZ meets industry standards.
7.What is the process for return or replacement of PTN36221AHXZ?
All PTN36221AHXZ units undergo pre-shipment inspection (PSI). If there is an issue with PTN36221AHXZ, 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 PTN36221AHXZ part is unused and in its original packaging.
Return procedure for PTN36221AHXZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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