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NXP Semiconductors PTN3222DUKZ
- Part No.:
- PTN3222DUKZ
- Manufacturer:
- NXP Semiconductors
- Category:
- Signal Buffers, Repeaters, Splitters
- Package:
- 12-XFBGA, WLCSP
- Datasheet:
-
PTN3222DUKZ.pdf
- Description:
- PTN3222DUKZ
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
PTN3222DUKZ from NXP Semiconductors is a 1-port eUSB2 to USB2 redriver IC that translates between eUSB2 and USB2 signaling schemes in host, device, or dual-role repeater configurations. It supports all USB2 data rates (1.5 Mbps LS, 12 Mbps FS, 480 Mbps HS), implements Link Power Management (L1/L2), and operates from dual supplies (VDD1V8/VDD3V3) in a WLCSP12 package. It enables robust signal integrity in compact mobile and embedded platforms with USB Type-C, Micro-B, or Standard-A/B connectors.
For engineers reviewing the PTN3222DUKZ datasheet, PTN3222DUKZ pinout, PTN3222DUKZ application, or PTN3222DUKZ equivalent, this page delivers verified technical context on eUSB2/USB2 translation, I2C-configurable SI parameters (Tx de-emphasis, Rx equalization), Deep standby mode, BC1.2 CDP support, and over-voltage protection on DP/DN pins - critical for USB interface design in smartphones, tablets, and protocol bridges.
Technical Context
The PTN3222DUKZ integrates separate eUSB2 and USB2 analog front ends with independent signal conditioning: eUSB2 side supports Tx de-emphasis, Rx equalization, Rx squelch threshold, and output swing control; USB2 side supports HS disconnect detection, Rx termination/equalization, Tx slew rate/de-emphasis, and output swing tuning. Its repeater state machine dynamically manages role transitions (host ↔ peripheral) and power states (Deep standby, L1, L2, Active HS/LS/FS) based on link status and connection events.
It features an I2C target interface (standard/fast/fast-plus modes) with quaternary ADDR pin selecting one of four 7-bit addresses (0x43/0x47/0x4B/0x4F), RAP-accessible registers for customer-facing configuration, and hardware reset via active-low RST_N that places DP/DN in Hi-Z and enables 2 MΩ internal pulldowns. USB2 DP/DN pins tolerate 5.5 V DC for 24 hours and withstand short-to-GND and collision faults without damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 1-port eUSB2-to-USB2 redriver supporting host, device, and dual-role repeater operation |
| Data Rates | 1.5 Mbps (LS), 12 Mbps (FS), 480 Mbps (HS) - full USB2.0 compliance with ECNs |
| Power Supplies | VDD1V8 (1.8 V) and VDD3V3 (3.3 V); no sequencing requirement; backpower-safe GPIOs |
| Operating Temp | −40 °C to +85 °C ambient - validated for industrial and mobile platform use |
| ESD Rating | 2 kV HBM / 500 V CDM on all pins - requires external matched ESD diodes for IEC61000-4-2 Level 4 |
| Package | WLCSP12 (1.55 mm × 1.18 mm × 0.455 mm body, 0.35 mm pitch) with backside coating |
| I2C Interface | Target-only, no clock stretching; supports standard/fast/fast-plus modes; 7-bit address selectable via ADDR pin |
Pinout & Package
PTN3222DUKZ is housed in a 12-terminal wafer-level chip-scale package (WLCSP12) with 0.35 mm pitch, optimized for space-constrained mobile PCB layouts. The package includes backside coating and requires low-noise AGND/DGND separation per layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D1 DGND | Digital ground | Connects to low-noise digital ground plane; avoid long traces to minimize noise coupling |
| D2 VDD1V8 | 1.8 V supply | Power domain for eUSB2/USB2 analog IO and digital logic; requires 0.47 µF + 33 pF decoupling |
| D3 VDD3V3 | 3.3 V supply | Power domain for USB2 analog IO; requires 0.47 µF + 33 pF decoupling; enables BC1.2 CDP feature |
| C1 eDP | eUSB2 positive transceiver | Analog IO for eUSB2 differential pair; supports configurable Tx/Rx signal integrity settings |
| C2 ADDR | I2C address select | Quaternary input sampled at POR; selects one of four I2C target addresses (0x43/0x47/0x4B/0x4F) |
| C3 DP | USB2 positive transceiver | Analog IO for USB2 DP; includes 2 MΩ internal pulldown enabled in all states |
| B1 eDN | eUSB2 negative transceiver | Analog IO for eUSB2 differential pair; paired with eDP for high-speed signal routing |
| B2 RST_N | Active-low reset | Puts DP/DN in Hi-Z, enables 2 MΩ pulldowns, and enters Deep standby; retains I2C register values except Link/Status |
| B3 DN | USB2 negative transceiver | Analog IO for USB2 DN; includes 2 MΩ internal pulldown enabled in all states; 5.5 V tolerant |
| A1 AGND | Analog ground | Low-noise analog reference; must connect directly to PCB ground plane, isolated from noisy digital paths |
| A2 SDA | I2C data | Open-drain digital IO; requires external pull-up resistor to I2C bus voltage; no internal pull-up |
| A3 SCL | I2C clock | Input-only digital signal; requires external pull-up resistor; tolerates clock stretching by other targets |
Key Features
| Feature | Design Value |
|---|---|
| eUSB2/USB2 Translation | Full-speed redriver operation across all USB2 speeds with dynamic role negotiation (host/device/dual) |
| Signal Integrity Tuning | Independent Rx equalization, Tx de-emphasis, squelch thresholds, and output swing control on both eUSB2 and USB2 sides |
| Power Management | Deep standby mode, L1/L2 sleep states, and auto-resume (20 ms typ) compliant with USB Link Power Management |
| BC1.2 CDP Support | Controlled voltage source on DN pin enabled via I2C register; automatically disabled on USB connect event |
| Robustness | 5.5 V tolerance on USB2 DP/DN (24 h), short-to-GND survival, collision fault resilience, and backpower-safe pins |
| I2C Flexibility | Four selectable target addresses, RAP access for customer registers, and sequential read/write support across 0x00–0xFF address space |
Applications
| Smartphone Host Repeater | Tablet Peripheral Repeater |
|---|---|
Use Scenario: Integrating eUSB2-capable SoC with legacy USB2 peripherals (keyboards, storage) via USB-C port in smartphone chassis. IC Role / Device Role / Timing Role: Redriver translates eUSB2 signals from SoC PHY to USB2 signals for external devices; manages role negotiation and HS disconnect detection. Use Value: Enables USB2 peripheral compatibility without redesigning SoC PHY or sacrificing board space - leverages WLCSP12 footprint and Deep standby for battery life. | Use Scenario: Adding USB2 OTG capability to tablet using eUSB2-enabled application processor and Micro-B connector. IC Role / Device Role / Timing Role: Acts as device repeater, presenting USB2 device identity to host while receiving eUSB2 commands from tablet SoC. Use Value: Supports BC1.2 CDP charging and maintains signal integrity over flex-cable interconnects - uses internal pulldowns and configurable Rx equalization to compensate loss. |
| Protocol Bridge Hub | Embedded Router Interface |
Use Scenario: Enabling eUSB2-to-USB2 bridging in compact IoT gateway supporting multiple USB2 sensors and actuators via Standard-A ports. IC Role / Device Role / Timing Role: Dual-role repeater dynamically switches between host and device roles based on cable attachment and enumeration sequence. Use Value: Eliminates need for discrete USB2 hub ICs; reduces BOM count and power consumption via L1/L2 sleep states during idle periods. | Use Scenario: Extending USB2 connectivity in industrial router with eUSB2 SoC and external USB2 debug/programming port (Type-C). IC Role / Device Role / Timing Role: Host repeater relaying eUSB2 traffic from SoC to USB2 debug tools; uses RST_N to isolate DP/DN during firmware updates. Use Value: Ensures safe debug interface operation with Over-Voltage Protection on DP/DN and robust 5.5 V tolerance - prevents field failures from accidental miswiring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eUSB2-to-USB2 redriver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TUSB216 | Single-supply (3.3 V only); no eUSB2 support; USB2-only redriver with fixed HS/FS/LS operation | Cannot translate eUSB2 signals; limited to USB2 channel extension without protocol conversion | Select when system uses only USB2 PHYs and requires simpler power architecture |
| Renesas uPD720210 | PCIe-to-USB3.0 bridge controller; not a redriver; requires host CPU driver stack and PCIe interface | Provides full USB3.0 host controller functionality, not signal retiming; incompatible with eUSB2/USB2 translation use case | Select only for adding USB3.0 host ports - not a functional alternative for PTN3222DUKZ's redriver role |
Compared with TI TUSB216 and Renesas uPD720210, PTN3222DUKZ uniquely delivers eUSB2-to-USB2 protocol translation in a dual-supply, ultra-compact WLCSP12 package with configurable SI, BC1.2 CDP, and robust fault protection - making it the only viable option for mobile SoC interface consolidation where eUSB2 PHYs must interoperate with legacy USB2 endpoints.
Availability
PTN3222DUKZ is available at Aetrix Electronics and suitable for smartphone, tablet, protocol bridge, and embedded router designs requiring stable component supply, automotive-grade temperature operation (−40 °C to +85 °C), and compact WLCSP packaging.
Supply support for PTN3222DUKZ 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 mobile applications, with leadership in USB, NFC, and edge processing technologies.
The PTN3222DUKZ belongs to NXP's eUSB2 interface product line, designed specifically to bridge next-generation eUSB2 PHYs with legacy USB2 ecosystems in space- and power-constrained mobile platforms.
FAQ
What is the primary function of the PTN3222DUKZ?
The PTN3222DUKZ is a 1-port eUSB2-to-USB2 redriver IC that performs real-time signal translation between eUSB2 and USB2 physical layers. It enables systems with eUSB2-capable SoCs to interface with legacy USB2 peripherals or hosts using Standard-A, Micro-B, or USB Type-C connectors. The PTN3222DUKZ supports host, device, and dual-role repeater operation with full-speed USB2 compliance (1.5/12/480 Mbps) and integrated Link Power Management.
How does the PTN3222DUKZ handle power management and low-power states?
The PTN3222DUKZ implements multiple power-saving modes including Deep standby, L1 sleep, and L2 suspend - all compliant with USB Link Power Management specifications. In Deep standby, the USB2 DP/DN pins enter Hi-Z and internal 2 MΩ pulldowns activate, while the I2C interface remains active for configuration. Auto-resume is supported with a typical 20 ms timeout. The PTN3222DUKZ draws minimal current in these states and requires both VDD1V8 and VDD3V3 to be stable before exiting reset.
What are the key signal integrity features configurable via I2C on the PTN3222DUKZ?
The PTN3222DUKZ provides independent SI tuning on both eUSB2 and USB2 sides via I2C registers. On eUSB2: Tx de-emphasis, Rx equalization, Rx squelch threshold, and Tx output swing. On USB2: HS disconnect detection threshold, Rx squelch threshold, Rx termination/equalization, Tx de-emphasis, Tx slew rate, and Tx output swing. These parameters are adjustable per application channel loss and noise profile - critical for maintaining eye diagram integrity in flex-cable or PCB trace environments.
Does the PTN3222DUKZ support BC1.2 charging, and how is it implemented?
Yes, the PTN3222DUKZ supports BC1.2 Charging Downstream Port (CDP) functionality in host repeater mode. It implements a controlled voltage source on the USB2 DN pin, enabled via an I2C register bit. When activated, this feature allows attached mobile devices to detect higher-current charging capability. The PTN3222DUKZ autonomously disables the CDP source upon USB connect detection and resets the corresponding I2C bit - ensuring safe, standards-compliant charging handshaking without host software intervention.
What package and pinout does the PTN3222DUKZ use, and what are its PCB layout considerations?
The PTN3222DUKZ uses a WLCSP12 package (1.55 mm × 1.18 mm × 0.455 mm, 0.35 mm pitch) with backside coating. Key layout requirements include separating AGND (analog ground) and DGND (digital ground) with dedicated low-noise planes, placing 0.47 µF + 33 pF decoupling capacitors adjacent to VDD1V8 and VDD3V3 pins, routing eDP/eDN and DP/DN as tightly coupled differential pairs, and keeping the ADDR pin close to its pull-up/pull-down resistor and VDD1V8 decoupling. External 10 kΩ pull-up on RST_N is mandatory.
PTN3222DUKZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 12-XFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Buffer, ReDriver
- Applications:
- USB
- Input:
- Differential
- Output:
- Differential
- Data Rate (Max):
- 480Mbps
- Number of Channels:
- 1
- Delay Time:
- 3.0ns (Max)
- Signal Conditioning:
- Input Equalization, Output De-Emphasis
- Capacitance - Input:
- 10 pF
- Voltage - Supply:
- 1.62V ~ 1.98V, 2.85V ~ 3.63V
- Current - Supply:
- 11mA (Max)
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-WLCSP (1.55x1.18)
PTN3222DUKZ FAQ
1.How can I place an order for PTN3222DUKZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PTN3222DUKZ 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 PTN3222DUKZ reliable?
The price and inventory of PTN3222DUKZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTN3222DUKZ is usually 5 days.
3.What payment methods are accepted for PTN3222DUKZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTN3222DUKZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTN3222DUKZ?
PTN3222DUKZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTN3222DUKZ 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 PTN3222DUKZ?
For technical support, including PTN3222DUKZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTN3222DUKZ requirements.
6.How does Aetrix verify that PTN3222DUKZ is sourced from the original manufacturer or authorized distributors?
All PTN3222DUKZ 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 PTN3222DUKZ meets industry standards.
7.What is the process for return or replacement of PTN3222DUKZ?
All PTN3222DUKZ units undergo pre-shipment inspection (PSI). If there is an issue with PTN3222DUKZ, 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 PTN3222DUKZ part is unused and in its original packaging.
Return procedure for PTN3222DUKZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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