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NXP Semiconductors PTN36043ABXY
- Part No.:
- PTN36043ABXY
- Manufacturer:
- NXP Semiconductors
- Package:
- 18-XFQFN Exposed Pad
- Datasheet:
-
PTN36043ABXY.pdf
- Description:
- IC SWITCH SPDT X 2 18X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:9,394
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Product details
Overview
PTN36043ABXY from NXP Semiconductors is a 2-channel, 2:1 bidirectional SuperSpeed USB 3.1 Gen 1 (5 Gbps) active multiplexer/demultiplexer with integrated redriver functionality, operating from a 1.8 V supply, delivering 14 dB differential return loss (10 MHz–1250 MHz), and consuming only 113 mA typical in active state - deployed in USB Type-C docking stations and mobile device port expansion.
For engineers reviewing the PTN36043ABXY datasheet, PTN36043ABXY pinout, PTN36043ABXY application, or PTN36043ABXY equivalent, this page delivers verified signal integrity parameters, USB 3.1 Gen 1 redriver configuration options per channel, power-state current draw (0.45 mA no-connection, 0.75 mA U2/U3), DHX2QFN18 package dimensions, and flow-through pinout mapping for PCB layout optimization.
Technical Context
The PTN36043ABXY implements dual independent redriver channels - one facing the application processor (AP side) and one facing the connector (CON side) - each configurable via ternary CHx_SETx pins for receive equalization (0/3/6 dB), transmit de-emphasis (−5.3/−3.9/−3.5/0 dB), and output swing (900/1100 mV). Its SEL pin selects between two USB Type-C ports without host software intervention.
It performs automatic receiver termination detection, integrates on-die 72–120 Ω differential termination, supports electrical idle detection with 5–14 ns reaction time, and transitions from power-saving to active state in ≤115 µs. The device complies with JESD78 Class II latch-up and exceeds 7 kV HBM / 1 kV CDM ESD ratings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface Standard | USB 3.1 Gen 1 (SuperSpeed, 5 Gbps) compliant; supports only SuperSpeed signaling - not USB 2.0 or sideband use. |
| Supply Voltage | 1.8 V nominal (1.7–1.9 V operating range); enables low-power mobile integration without level-shifting. |
| Active Current Draw | 113 mA typical at 1.8 V (203 mW); scales with EQ/DE/OS settings - e.g., 103–108 mA for mixed configurations. |
| Power-Saving Current | 0.75 mA typical in U2/U3 states; drops to 0.45 mA when no USB connection is detected. |
| Differential Return Loss | 14 dB (differential) and 15 dB (common-mode) from 10 MHz to 1250 MHz - ensures robust signal integrity across USB 3.1 bandwidth. |
| Propagation Delay | ≤0.5 ns differential propagation delay - preserves timing margins in high-speed serial links. |
| Package | DHX2QFN18: 2.4 mm × 2.0 mm × 0.35 mm body, 0.4 mm pitch, exposed thermal pad - optimized for ultra-thin mobile PCBs. |
Pinout & Package
DHX2QFN18 package: 2.4 mm × 2.0 mm × 0.35 mm body, 0.4 mm pitch, 18 terminals, thermally enhanced exposed center pad (GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RX_AP_+ | Output | Differential RX output to application processor; driven by internal redriver with selectable EQ gain. |
| RX_AP_− | Output | Inverted complement of RX_AP_+; forms matched pair for USB 3.1 Gen 1 differential signaling. |
| TX_AP_+ | Input | Differential TX input from application processor; feeds redriver's receive equalization path. |
| TX_AP_− | Input | Inverted complement of TX_AP_+; enables ISI compensation before retransmission. |
| RX_CON_1+ | Input | Differential RX input from USB Type-C port 1; routed to AP side when SEL = 1. |
| RX_CON_1− | Input | Inverted complement; high-impedance when SEL = 0. |
| TX_CON_1+ | Output | Differential TX output to USB Type-C port 1; applies configured de-emphasis and swing. |
| TX_CON_1− | Output | Inverted complement; maintains impedance matching via integrated 72–120 Ω termination. |
| RX_CON_2+ | Input | Differential RX input from USB Type-C port 2; active when SEL = 0. |
| RX_CON_2− | Input | Inverted complement; automatically detects receiver termination presence. |
| TX_CON_2+ | Output | Differential TX output to USB Type-C port 2; independently configurable for cable loss compensation. |
| TX_CON_2− | Output | Inverted complement; supports asymmetric de-emphasis settings per port. |
| CH1_SET1 / CH1_SET2 | Ternary Input | Configure EQ/DE/OS for AP-side channel (e.g., LOW/LOW = 3.0 dB EQ, −3.9 dB DE, 1100 mV OS). |
| CH2_SET1 / CH2_SET2 | Ternary Input | Configure EQ/DE/OS for CON-side channel; supports distinct settings for port 1 vs. port 2 paths. |
| SEL | Binary Input | Selects routing: SEL = 0 → AP ↔ CON2; SEL = 1 → AP ↔ CON1; OPEN interpreted as LOW. |
| VDD1V8 | Power | 1.8 V supply input; must be decoupled locally; powers all redriver and switch logic. |
| GND | Power | Ground reference and thermal relief; center pad must be soldered to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through pinout | Minimizes trace length and crosstalk; matches USB Type-C connector pin assignments for direct routing. |
| Per-channel redriver configurability | Independent EQ (0/3/6 dB), DE (−5.3 to 0 dB), and OS (900/1100 mV) control on both AP and CON sides. |
| Automatic receiver termination detection | Eliminates need for external detection circuitry; enables dynamic power gating without host involvement. |
| Ultra-low standby current | 0.45 mA when no USB link is present - extends battery life in portable devices during idle periods. |
| Integrated 72–120 Ω differential termination | Provides precise impedance matching on both TX and RX paths, reducing reflections and improving eye opening. |
Applications
| Smartphone USB-C Docking | Tablet Port Expansion |
|---|---|
|
Use Scenario: Enables single USB-C port on smartphone to dynamically route SuperSpeed data to either an external display or high-speed storage via adapter. IC Role / Device Role / Timing Role: Acts as 2:1 active switch + redriver, preserving signal integrity across variable-length cables and PCB traces while switching between peripherals. Use Value: Delivers full 5 Gbps bandwidth to either destination without host firmware changes; reduces BOM count versus discrete switch + redriver solutions. |
Use Scenario: Allows tablet to support simultaneous USB-C video output and peripheral attachment using one physical port. IC Role / Device Role / Timing Role: Provides bidirectional signal conditioning and port selection for USB 3.1 Gen 1 lanes, maintaining eye diagram compliance under varying channel loss. Use Value: Achieves >14 dB return loss up to 1250 MHz, enabling reliable operation with 15+ cm flex cables and multi-layer PCB interconnects. |
| Notebook USB-C Hub | USB 3.1 Gen 1 Peripheral Switching |
|
Use Scenario: Used in compact USB-C hubs to route SuperSpeed signals between host controller and two downstream ports (e.g., SSD + monitor). IC Role / Device Role / Timing Role: Functions as a low-latency (<7 ms port reconfiguration), low-power (0.75 mA in U2/U3) demux with adaptive equalization. Use Value: Supports seamless transition between active and low-power states - critical for hub compliance with USB power delivery specifications. |
Use Scenario: Embedded in USB 3.1 Gen 1 peripherals (e.g., docking stations, external GPUs) to select between upstream host connections. IC Role / Device Role / Timing Role: Serves as a redriving 2:1 mux that compensates for board-level losses and maintains jitter tolerance below USB 3.1 Gen 1 limits. Use Value: Enables >1000 mVpp differential output swing and <0.5 ns propagation delay - ensuring robust link training and stable enumeration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 3.1 Gen 1 active switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3USB30E | No integrated redriver; passive analog switch only; requires external signal conditioning for >10 cm traces. | Suitable for short-board routing where channel loss is minimal; lacks USB 3.1 Gen 1 power-state awareness. | Choose TS3USB30E only if system-level signal integrity is guaranteed without redriving and lowest BOM cost is prioritized. |
| PI3DBS16412 | 16-pin QFN, supports USB 3.1 Gen 1 + DisplayPort Alt Mode; higher active current (150 mA), no U2/U3-aware power management. | Used in multi-protocol Type-C controllers; lacks per-port EQ/DE configurability and automatic termination detection. | Choose PI3DBS16412 when co-routing USB and DP signals is required; PTN36043ABXY is preferred for USB-only, ultra-low-power designs. |
Compared with TS3USB30E and PI3DBS16412, the PTN36043ABXY uniquely combines integrated redriver, ternary per-channel configuration, sub-1 mA U2/U3 current, and automatic termination detection - making it optimal for battery-powered USB-C expansion where signal integrity and power efficiency are jointly constrained.
Availability
PTN36043ABXY is available at Aetrix Electronics and suitable for USB Type-C docking stations, smartphone port expansion modules, and notebook USB-C hubs requiring stable component supply, consistent thermal performance, and long-term lifecycle availability.
Supply support for PTN36043ABXY 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer electronics.
The PTN36043ABXY belongs to NXP's USB interface portfolio, designed specifically to enable compact, low-power USB 3.1 Gen 1 signal routing in space-constrained mobile and portable platforms with USB Type-C connectors.
FAQ
What is the primary function of the PTN36043ABXY in a USB Type-C system?
The PTN36043ABXY serves as a 2:1 bidirectional active multiplexer/demultiplexer with integrated USB 3.1 Gen 1 redriver functionality. It routes SuperSpeed differential signals between an application processor and two USB Type-C connector ports while enhancing signal integrity through receive equalization and transmit de-emphasis. Its design enables dynamic port selection and power-state adaptation without host software intervention - critical for mobile docking and port expansion applications where PCB space and power budget are tightly constrained. The PTN36043ABXY operates exclusively at 5 Gbps and does not support USB 2.0 or alternate modes.
How does the PTN36043ABXY manage power in USB 3.1 Gen 1 low-power states?
The PTN36043ABXY implements autonomous power management aligned with USB 3.1 Gen 1 U2/U3 electrical conditions. It draws only 0.75 mA typical in U2/U3 states and further reduces to 0.45 mA when no USB connection is detected - achieved via dynamic activation/deactivation of internal redriver blocks and squelch detection circuitry. This behavior is triggered solely by bus electrical signaling and the SEL pin state; no USB protocol decoding or host driver interaction is required. The PTN36043ABXY exits U2/U3 in ≤115 µs and reacts to electrical idle transitions within 5–14 ns, ensuring rapid link recovery without compromising power savings.
Can the PTN36043ABXY be used with USB 2.0 signals or DisplayPort Alt Mode?
No, the PTN36043ABXY is designed exclusively for USB 3.1 Gen 1 SuperSpeed (5 Gbps) differential signaling and does not process, route, or condition USB 2.0 or DisplayPort Alt Mode signals. Its internal architecture - including equalization filters, de-emphasis drivers, and termination networks - is optimized for the 2.5 GHz fundamental frequency and spectral content of USB 3.1 Gen 1. While the DHX2QFN18 package has sufficient pins to accommodate additional functions, the PTN36043ABXY silicon does not include USB 2.0 transceivers or DP lane switching logic. For multi-protocol Type-C applications, a separate switch or controller must handle non-SuperSpeed lanes.
What are the key layout considerations for the PTN36043ABXY's DHX2QFN18 package?
Successful PCB layout for the PTN36043ABXY requires strict adherence to its flow-through pinout: differential pairs (e.g., RX_AP_+/−, TX_CON_1+/−) must be routed as matched-length, controlled-impedance (90 Ω differential) traces with minimal stubs and adjacent ground vias. The exposed center pad must be solidly soldered to a dedicated internal or bottom-layer GND plane for both electrical grounding and thermal dissipation. Power supply (VDD1V8) requires local 100 nF + 1 µF decoupling placed within 2 mm of the pin. Control pins (SEL, CHx_SETx) should avoid floating states - SEL is internally pulled low when OPEN, but CHx_SETx pins require explicit HIGH/LOW/OPEN biasing per Table 4 and Table 5 to ensure deterministic redriver configuration.
Does the PTN36043ABXY support pin-to-pin compatibility with other NXP USB switches?
No documented pin-to-pin compatible alternatives exist for the PTN36043ABXY within NXP's portfolio. Its DHX2QFN18 footprint, 18-pin count, and specific pin assignment (e.g., dual CHx_SETx ternary inputs, separate RX/TX pairs per port) are unique to this device. While the PTN36043A family shares functional architecture, variant part numbers (e.g., PTN36043ABX) differ only in packaging or marking - not pinout or internal connectivity. Migration to another NXP switch would require PCB redesign. The PTN36043ABXY is not a drop-in replacement for TS3USB30E, PI3DBS16412, or other vendor's USB switches due to differences in pin count, signal routing, and redriver integration.
PTN36043ABXY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 1.7V ~ 1.9V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- 6µA
- Crosstalk:
- -50dB @ 2.5GHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 18-X2QFN (2.4x2)
PTN36043ABXY FAQ
1.How can I place an order for PTN36043ABXY through Aetrix?
Please submit a Request for Quotation (RFQ) for PTN36043ABXY 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 PTN36043ABXY reliable?
The price and inventory of PTN36043ABXY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTN36043ABXY is usually 5 days.
3.What payment methods are accepted for PTN36043ABXY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTN36043ABXY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTN36043ABXY?
PTN36043ABXY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTN36043ABXY 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 PTN36043ABXY?
For technical support, including PTN36043ABXY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTN36043ABXY requirements.
6.How does Aetrix verify that PTN36043ABXY is sourced from the original manufacturer or authorized distributors?
All PTN36043ABXY 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 PTN36043ABXY meets industry standards.
7.What is the process for return or replacement of PTN36043ABXY?
All PTN36043ABXY units undergo pre-shipment inspection (PSI). If there is an issue with PTN36043ABXY, 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 PTN36043ABXY part is unused and in its original packaging.
Return procedure for PTN36043ABXY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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