NXP TJA1102 Ethernet PHY dual tranceiver
TJA1102 - a 100BASE-T1 compliant dual-port Ethernet PHY optimized for automotive
The TJA1102 is a 100BASE-T1 compliant dual-port Ethernet PHY optimized for automotive use cases. The device provides 100 Mbit/s transmit and receive capability over two unshielded twisted-pair cables, supporting a cable length of up to at least 15 m.
The TJA1102 has been designed for automotive robustness, while minimizing power consumption and system costs. With its integrated, fully OPEN Alliance TC-10 compliant sleep and wakeup concept over data line, it safes wire cost and weight, and enables partial networking. For added flexibility, a single PHY version is available (TJA1102S) in which one of the PHYs is disabled.
Features
- Transmitter optimized for capacitive coupling to unshielded twisted-pair cable
- EMC-optimized output driver strength for MII and RMII
- MDI pins protected against transients in automotive environment
- MDI pins do not need external filtering or ESD protection
- Automotive-grade temperature range from -40 °C to +125 °C
- Automotive product qualification in accordance with AEC-Q100
- Dedicated PHY enable/disable input pin to minimize power consumption
- OPEN Alliance-compliant wake-up concept (global wake-up support)
- OPEN Alliance-compliant sleep concept
Applications
- Automotive gateways
- IP camera links
- Driver assistance systems
- Back-bone networks
Block diagram
NXP
TJA1102
The TJA1102 is a 100BASE-T1 compliant dual-port Ethernet PHY optimized for automotive use cases. The device provides 100 Mbit/s transmit and receive capability over two unshielded twisted-pair cables, supporting a cable length of up to at least 15m.
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