TDK has expanded its MLJ1608-G series of multilayer inductors for automotive power-over-coax (PoC) circuits.
Automotive PoC technology allows power and data to be transmitted simultaneously over a single coaxial cable. It is primarily used with automotive cameras for advanced driver-assistance systems (ADAS), including those used in electric vehicle (EV) platforms.
Using a single cable instead of separate power and data cables can reduce vehicle wiring, weight, and packaging requirements while simplifying connections between cameras and electronic control units (ECUs).
The new MLJ1608-G components offer:
- High impedance across frequencies from 300 MHz to 2 GHz
- 1.7 to 2 times higher impedance than conventional components in the 100- to 700-MHz range
- A compact 1.6 × 0.8 × 0.8-mm package
- AEC-Q200 compliance
PoC systems use wideband filters containing multiple inductors to separate power from data signals before processing. TDK increased the inductance of the new component to 1.2 μH, compared with 0.56 μH for its conventional products.
The higher impedance is designed to improve noise suppression, while the smaller component size can help reduce the size of automotive camera modules.
TDK plans to continue developing multilayer, wire-wound, and thin-film inductors for automotive PoC applications.
Filed Under: Power Electronics, Technology News