TJA1041T/N1,118

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Introduction

The TJA1041T/N1,118 is a high-speed CAN physical layer transceiver, used in automotive and non-automotive communication systems. It is designed for operation with data rates up to 1 Mbit/s. The device is specified for an operating voltage range of 4.5 V to 5.5 V and temperature range of -40 °C to +125 °C.

Application Field

TJA1041T/N1,118 devices are commonly used in several applications such as automotive, industrial, and home automation due to their robust properties. They are used in CAN bus networks to receive, transmit and decode data between nodes. Thus, they are very important in automotive applications, as they enable communication among the different systems. Some of these applications include vehicle navigation, driver assistance systems, motor control, and vehicle body control.

Working Principle

The TJA1041T/N1,118 transceiver operates on the principle of voltage controlled oscillators (VCOs). This type of transceiver utilizes the VCOs to modulate and demodulate the data signals. The VCOs are integrated into the circuit and use a control voltage to tune the frequency of the oscillator. The output from this oscillator is then passed through a low pass filter, where only the desired data signals are kept. The filtered data is then sent to the CAN bus for transmission or decoded for receipt.

The transceiver also uses pulse-width modulation (PWM) technology to control the power output from the controller. This technique allows the controller to adjust the output of the transceiver to the required levels without any significant electrical interference.

The TJA1041T/N1,118 transceiver is also designed with several safety features, such as current limitation and thermal protection. The current limiting feature prevents damage to the transceiver in case of an overload or short circuit. The thermal protection feature keeps the temperature of the device within safe operating limits. Lastly, the device has an optional overvoltage protection function, which protects the device from overvoltage as well as reverse current.

Conclusion

The TJA1041T/N1,118 is a high-speed CAN physical layer transceiver device, commonly used in automobile and non-automotive communication systems. It operates on the principle of voltage controlled oscillators (VCOs) to modulate and demodulate the data signals, using pulse-width modulation (PWM) to control the power output from the controller. Additionally, it comes with several safety features, such as current-limiting, thermal-protection, and overvoltage protection. This transceiver is often used in several applications due to its robust properties, such as automotive, industrial, and home automation.

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