Do you need a lot of design and development resources to select inductors for Bias-T circuits?
Increasing importance of high-speed for automotive
Components selection expertise to confirm criteria values
A circuit configuration combining multiple inductors is required
Impact of increasingly present high-speed automotive networks
Numerous cameras and sensors are installed in automobiles to improve functionality, such as self-driving and ADAS. As a result, high-speed automotive networks are increasingly important for transferring the information detected by these cameras and sensors to ECUs.
Adoption of PoC (Power Over Coaxial) is advancing as a high-speed transfer method that performs the transfer with a single coaxial cable by superimposing the power onto the data transfer interface.
Typical PoC system circuit
Required expertise and time to clear standards
When using the PoC (Power Over Coaxial) method, it is necessary to design Bias-T circuits to prevent high frequency signals from flowing into power lines that have low load impedance.
This design requires expertise to select combinations of components that can clear the criteria values to be met as the Bias-T circuit characteristics provided by IC manufacturers and Tier-1 and OEM companies. Furthermore, the design time is increased.