Overview
The TJA1101BHN/0Z is a high-performance, single-port automotive Ethernet PHY (Physical Layer Transceiver) developed by NXP USA Inc. This component is designed to meet the stringent requirements of automotive Ethernet applications, ensuring reliable and efficient data transmission. It is compliant with the IEEE 100BASE-T1 standard and is optimized for use in various automotive systems such as gateways, IP camera links, radar modules, driver assistance systems, and back-bone networks.
Key Specifications
| Specification | Description |
|---|---|
| Compliance | IEEE 100BASE-T1, OPEN Alliance TC-10 |
| Data Rate | 100 Mbit/s |
| Cable Length | Up to 15 meters over a single unshielded twisted-pair cable |
| Interface | MII- and RMII-compliant |
| Package | 36-pin HVQFN (6 × 6 mm) |
| Temperature Range | -40 °C to +125 °C |
| Supply Voltage | 3.3 V (with optional 1.8 V external supply for digital core) |
| ESD Protection | MDI pins protected against ESD to ±6 kV HBM and ±8 kV IEC61000-4-2 |
| Safety Compliance | ISO 26262, ASIL-A compliant |
| Low-Power Mode | OPEN Alliance TC-10-compliant sleep and wake-up forwarding |
Key Features
- Optimized for Automotive Use Cases: Designed for gateways, IP camera links, radar modules, driver assistance systems, and back-bone networks.
- Adaptive Receive Equalizer: Optimized for automotive cable lengths up to 15 meters.
- Integrated PAM-3 Pulse Shaping: For low RF emissions.
- EMC-Optimized Output Driver Strength: For MII and RMII interfaces.
- Automated Polarity Detection and Correction: Host-configurable MDI polarity.
- Low-Power Mode: OPEN Alliance TC-10-compliant sleep and wake-up forwarding with robust remote wake-up detection.
- Diagnosis Capabilities: Signal Quality Indicator, cable error diagnosis (shorts and opens), and gap-free supply undervoltage detection.
- On-Chip Regulators and Termination Resistors: For 3.3 V single-supply operation and differential cable pair termination.
- Jumbo Frame Support: Up to 16 kB.
Applications
- Automotive Gateways: Central communication hubs in vehicles.
- IP Camera Links: For vehicle surveillance and monitoring systems.
- Radar Modules: In advanced driver assistance systems (ADAS).
- Driver Assistance Systems: Including lane departure warning, adaptive cruise control, etc.
- Back-bone Networks: High-speed data communication within vehicles.
Q & A
- What is the TJA1101BHN/0Z compliant with?
The TJA1101BHN/0Z is compliant with the IEEE 100BASE-T1 standard and the OPEN Alliance TC-10 specification.
- What is the maximum data rate supported by the TJA1101BHN/0Z?
The TJA1101BHN/0Z supports a data rate of 100 Mbit/s.
- What is the maximum cable length supported by the TJA1101BHN/0Z?
The device supports a cable length of up to 15 meters over a single unshielded twisted-pair cable.
- What interfaces does the TJA1101BHN/0Z support?
The TJA1101BHN/0Z supports MII- and RMII-compliant interfaces.
- What is the package type of the TJA1101BHN/0Z?
The TJA1101BHN/0Z comes in a 36-pin HVQFN package (6 × 6 mm).
- What is the operating temperature range of the TJA1101BHN/0Z?
The operating temperature range is from -40 °C to +125 °C.
- Is the TJA1101BHN/0Z compliant with any safety standards?
Yes, it is ISO 26262, ASIL-A compliant.
- What low-power features does the TJA1101BHN/0Z support?
The device supports OPEN Alliance TC-10-compliant sleep and wake-up forwarding.
- Does the TJA1101BHN/0Z have built-in ESD protection?
Yes, the MDI pins are protected against ESD to ±6 kV HBM and ±8 kV IEC61000-4-2.
- What diagnosis capabilities does the TJA1101BHN/0Z offer?
The device includes a Signal Quality Indicator, cable error diagnosis, and gap-free supply undervoltage detection.
