TJA1102/TJA1102A: Dual Port 100BASE-T1 PHY Transceiver


Roll over image to zoom in

Product Details

Select a section:

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


Quick reference to our documentation types.

1-5 of 6 documents

Show All

Design Resources

Design Files


1-5 of 12 hardware offerings

Show All


3 software files

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

Engineering Services

2 engineering services

To find a complete list of our partners that support this product, please see our Partner Marketplace.


1 trainings


What do you need help with?