1. Receivers for Improving Signal Integrity and Data-Rate in Controller Area Networks
- Author
-
Andrea Gallone and Piero Malcovati
- Subjects
CAN ,IC ,DPI ,EMC ,immunity ,receiver ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
This paper presents additional circuits and characterization methodologies of novel CAN (Controller Area Networks) receivers that implement new features, aiming at improving CAN signal integrity and data-rate. The first receiver shown includes a circuit for ringing removal. The use of a Notch filter is meant to remove the ringing. The pulse-width symmetry is improved to a range just lower than −20 ns and +15 ns. As a result, during arbitration, the transmission data-rate can be increased up to 8 Mbit/s, a higher limit must be evaluated on a network system level. The second receiver shown is conceived for multi-bit communication. The possibility of parallelizing data transmission leads to an efficient use of the bandwidth available. A table compares the achieved results with the specifications of the latest available protocols. The chips of both receivers were designed and fabricated with a 0.18- $\mu $ m BCD technology. After a block level description of the receivers, a Direct Power Injection (DPI) methodology is described. It is used to evaluate the receiver’s immunity to conducted continuous-wave interference. Considerations regarding future technological directions for new applications are provided at the end of the paper.
- Published
- 2024
- Full Text
- View/download PDF