Overview
The NB7NPQ7042M is a 3.3 V quad channel / dual port linear redriver designed by onsemi, specifically tailored for USB 3.1 Gen 1 and USB 3.1 Gen 2 applications. This component addresses signal integrity issues that arise from PCB traces, transmission cables, and inter-symbol interference (ISI) by providing adjustable levels of equalization and flat gain amplification. It is packaged in a compact 3.1 x 4.3 mm X2QFN34 package and operates across the industrial temperature range of –40°C to 85°C.
Key Specifications
| Parameter | Description | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | Main power supply | 3.135 | 3.3 | 3.465 | V |
| Operating Temperature Range | Ambient temperature range | –40 | 85 | °C | |
| ESD Protection (HBM) | Human Body Model | 2 kV | |||
| Input Differential Voltage Swing | AC-coupled, peak-to-peak | 100 | 1200 | mVPP | |
| Differential Input Resistance | Present after USB device detection | 80 | 100 | 120 | Ω |
| Differential Output Impedance | Present after USB device detection | 80 | 100 | 120 | Ω |
| Package Type | X2QFN34 |
Key Features
- Automatic Receiver Termination Detection: The device periodically checks for receiver connections and enables termination accordingly.
- Integrated Input and Output Termination: Built-in termination to simplify PCB design.
- Independent, Selectable Equalization and Flat Gain: Controlled by four level control pins for each channel, allowing for adjustable signal optimization.
- Hot-Plug Capable: Supports hot-plug operations without damaging the device.
- Flow-through Design: Facilitates ease of PCB layout.
- ESD Protection: Offers 2 kV HBM protection.
- Operating Temperature Range: –40°C to 85°C, suitable for industrial applications.
- Small Package Size: 3.1 x 4.3 x 0.35 mm X2QFN34 package.
Applications
- USB 3.1 Type-C and Type-A Signal Routing
- Mobile Phone and Tablet
- Computer and Laptop
- Docking Station and Dongle
- Active Cable, Back Planes
- Gaming Console, Smart TV, Set-Top Boxes
Q & A
- What is the primary function of the NB7NPQ7042M?
The NB7NPQ7042M is a linear redriver designed to compensate for signal losses in USB 3.1 Gen 1 and Gen 2 applications.
- What are the supported data rates for the NB7NPQ7042M?
The device supports both 5 Gbps and 10 Gbps data rates.
- How does the NB7NPQ7042M handle signal optimization?
The device uses four level control pins for each channel to adjust equalization and flat gain settings.
- What is the operating temperature range of the NB7NPQ7042M?
The device operates across the industrial temperature range of –40°C to 85°C.
- What type of package does the NB7NPQ7042M come in?
The device is packaged in a 3.1 x 4.3 mm X2QFN34 package.
- Does the NB7NPQ7042M support hot-plug operations?
Yes, the device is hot-plug capable.
- What is the ESD protection level of the NB7NPQ7042M?
The device offers 2 kV HBM ESD protection.
- How does the NB7NPQ7042M detect receiver connections?
The device periodically checks for receiver connections and enables termination accordingly.
- What are some typical applications for the NB7NPQ7042M?
Typical applications include USB 3.1 Type-C and Type-A signal routing, mobile phones, tablets, computers, laptops, docking stations, active cables, and gaming consoles.
- How should the traces be routed for optimal performance with the NB7NPQ7042M?
Traces should be routed as straight and symmetric as possible, maintaining a differential impedance of 90 Ω ±10%, and limiting the number of vias used on each data line.
