Electrostatic Discharge (Esd) - BMW F01 Manual

A 4-core, shielded cable is used for the 2-wire
LVDS technology. The cable consists of the
four cores, LVDS+, LVDS-, 2x ground and
shielding.
For Electromagnetic compatibility (EMC)
reasons, the unused wire is also connected to
ground.
In the illustration to the right, the advantages
of both cores connected to ground are shown
with the aid of field lines.
The capacitive interference of the signals is
deflected to ground. The wires connected to
ground form a defined potential and cannot act
as antennas.
This ensures that additional interference is
avoided.

Electrostatic Discharge (ESD)

It is essential to follow ESD (Electrostatic Discharge) guidelines when replacing individual
components in order to avoid damage to internal components of the CIC. These require-
ments also apply when storing or sending back components.
Special packaging (ESD bags, ESD boxes with film or foam material cladding) is available
for this purpose and should be used instead of conventional packaging materials.
The following picture illustrates the effects of electrostatic discharge (ESD) on electronic
components.
Effects of ESD (Electrostatic Discharge) on electronic components
56
F01 Audio Systems
Graphical Illustration of EMC protection
using 2-wire LVDS technology
Index
Two signal-carrying cores, two cores con-
1
Index
1
ESD symbol (protection measures necessary)
2
ESD damage to a conductor (magnified 5000 times)
Explanation
nected to ground
Explanation