Datasheet

10
NXP 100BASE-T1 PHY TRANSCEIVER FAMILY
Family Feature TJA1101 TJA1102S TJA1102 Description
Automotive
Package
HVQFN36
6 x 6 mm
2
HVQFN56
8 x 8 mm
2
HVQFN56
8 x 8 mm
2
Small size, saves PCB board space
Temperature range
-40 to +125
°C
-40 to
+125 °C
-40 to
+125 °C
Automotive Grade 1, high robustness to support automotive
applications
Unshielded twisted pair (UTP)
channel length up to at least
15 m 15 m 15 m
Low weight cable, high flexibility and low cost
Proper cable length fit for most automotive requirements
Repeater Mode 2 x 15 m Max cable length in repeater mode up to at least 30m
Interface MII/RMII MII/RMII MII/RMII Standard interfaces
Supply voltage 3.3 V 3.3 V 3.3 V Single supply, no need for external voltage regulators
Additional supply enabled 1.8 V 1.8 V 1.8 V Save power on component level
Data rate 100 Mbit/s 100 Mbit/s 100 Mbit/s Sufficient data rate to meet infotainment, ADAS requirements
Ethernet ports 1 1 2
Dual port solution saves ECU board place, simplifying system
layout and config
Pin-to-pin compatible
• •
Port count scalability for platform solutions
Pin Strapping
• • •
HW config during start-up, allows autonomous operation
Signal quality indicator (SQI)
• • •
Makes channel effects visible
TC-10 compliant partial networking
• • •
OPEN-Alliance TC-10 compliant wakeup-and-sleep concept
Diagnosis
Over-temperature protection
• • •
Prevent device from getting damaged by over-temperature
Cabling error detection (shorts and
opens)
• • •
Remote diagnosis
Gap-free supply under-voltage
detection with fail-silent behavior
• • •
Prevents the PHY from running in an undefined state Increases
system level functional safety
Internal, external and remote
loopback mode
• • •
Allows system diagnostics of the communication path
Dedicated Enable (EN) pin
• • •
Emergency shutdown for system safety e.g. block suspicious
ECU
Low Power
Mode
Low-power sleep mode 50 μA 45 μA 45 μA Low power consumption to ensure battery level
INH switch controls ECU supply
• • •
Set automotive power modes
Local wake-up support
• • •
Most common and secured wake-up option