LIN bus network, integrated circuit and method of communicating thereon

An integrated circuit for use in a linear interconnect networking (LIN) network comprising:

• a transmit driver and a receive comparator for communicating on a single communication bus, the transmit driver operably coupled to a high frequency detector to detect a high frequency component on a low frequency LIN signal, and in response to the detection of the high frequency component the integrated circuit is arranged to perform one or both of the following:
• route an average of the low frequency LIN signal having the high frequency componet through a low pass filter;
• and
• bypass the low frequency LIN signal having the high frequency component signal from being passed through an active device operably coupled between the transmit driver and the single communication bus;
• and
• a first switch arranged in parallel to the active device and operably coupled to the high frequency detector such that the first switch is switched to a closed position in a high frequency loop to bypass the active device when the high frequency component is detected.

An integrated circuit for use in a linear interconnect networking (LIN) network comprising:

• a transmit driver and a receive comparator for communicating on a single communication bus, the transmit driver operably coupled to a high frequency detector to detect a high frequency component on a low frequency LIN signal, and in response to the detection of the high frequency component the integrated circuit is arranged to perform one or both of the following;
• route an average of the low frequency LIN signal having the high frequency component through a low pass filter;
• and
• bypass the low frequency LIN signal having the high frequency component signal from being passed through an active device operably coupled between the transmit driver and the single communication bus;
• and
• a receiver node that receives a fed back average of the low frequency LIN signal and compares the fed back average of the low frequency LIN signal with a threshold voltage.

A method of communication on a linear interconnect networking (LIN) network cormprising a transmit driver operably coupled to a single communication bus via an active device, the method comprising:

• communicating a low frequency LIN signal having a high frequency component on a single communication bus:
• detecting the high frequency component on the low frequency LIN signal;
• in response to detecting, performing one or both of the following:
• routing an average of the low frequency LIN signal having the high frequency component through a low pass filter;
• and
• bypassing the low frequency LIN signal having the high frequency component signal from passing through the active device;
• switching a first switch to a closed position in a high frequency loop when the high frequency component is detected, wherein the first switch is arranged in parallel to the active device and operably coupled to the high frequency detector;
• and
• bypassing the active device in response to the first switch being switched to the closed position.