1. General description
The TJA1083G FlexRay node transceiver is compliant with the FlexRay Electrical
Physical Layer specification ISO 17458-4:2013 (see Ref. 1
and Ref. 2). It is primarily
intended for communication systems operating at between 2.5 Mbit/s and 10 Mbit/s, and
provides an advanced interface between the protocol controller and the physical bus in a
FlexRay network. The TJA1083G offers an optimized solution for Electronic Control Unit
(ECU) applications that do not need enhanced power management and are typically
switched by the ignition or activated by a dedicated wake-up line.
The TJA1083G provides a differential transmit capability to the network and a differential
receive capability to the FlexRay controller. It offers excellent ElectroMagnetic
Compatibility (EMC) performance as well as high ElectroStatic Discharge (ESD)
protection.
The TJA1083G actively monitors system performance using dedicated error and status
information (readable via SPI), as well as internal voltage and temperature monitoring.
The TJA1083G is fully functionally and pin compatible with the TJA1083 (see Ref. 3
).
2. Features and benefits
2.1 Optimized for time triggered communication systems
Compliant with ISO 17458-4:2013 (see Ref. 2)
Automotive product qualification in accordance with AEC-Q100
Data transfer rates from 2.5 Mbit/s to 10 Mbit/s
Supports 60 ns minimum bit time at 400 mV differential input voltage
Very low ElectroMagnetic Emission (EME) to support unshielded cable, meeting the
latest industry standards
Differential receiver with high common-mode range for excellent ElectroMagnetic
Immunity (EMI), meeting the latest industry standards
Auto I/O level adaptation to host controller supply voltage V
IO
Can be used in 14 V, 24 V and 48 V powered systems
Instant transmitter shut-down interface (BGE pin)
2.2 Low-power management
Very low current consumption in Standby mode
Remote wake-up via a wake-up pattern or dedicated FlexRay data frames on the bus
lines
TJA1083G
FlexRay node transceiver
Rev. 1 — 18 January 2018 Product data sheet
