TJA1102A/TJA1102AS, Dual/Single Port Automotive Ethernet 100BASE-T1 PHY Transceiver


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Block Diagram


TJA1102A/SJA1105 Block Diagram


Automotive Qualified

  • AEC-Q100 Grade 1
  • Ambient Temperature -40°C to 125°C

IEEE 100BASE-T1 compliant PHY transceiver

  • Pin to pin compatible single and dual port version
  • Interoperable with any IEEE 100BASE-T1 and OABR compliant PHY
  • 100Mbps Ethernet over single unshielded twisted pair (UTP) cable
  • Pin to pin compatible single and dual port version

OPEN Alliance TC-10 compliant sleep / wake up

  • Sleep and Wake-Up forwarding over data line
  • For reduced cable cost and weight
  • With direct connection to VBat for simplified power management

Optimized for Automotive Usecases

  • MDI pins do not need external filter or ESD protection
  • Cable polarity detection and auto-correction
  • Supports single 3.3V supply
  • Direct connection to VBat

Advanced Diagnostic Features

  • Real-time Signal Quality Indicator
  • Gap Free Under Voltage Detection
  • Diagnosis of Cabling Errors
  • HVQFN56 (8mm x 8mm) with wettable flanks
  • Small PCB footprint enabled for AOI
  • Dual- or single port variant

Part numbers include: TJA1102AHN.


Quick reference to our documentation types.

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Design Resources

Design Files


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1 software file

  • BSPs and Device Drivers

    TJA110x Linux driver for IEEE 802.3 Clause 22 managed PHYs

Note: For better experience, software downloads are recommended on desktop.


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