Hello Team,
My customer is using DS90UB925/926 design the infotainment system, now they met the EMI issue for GPS when the system working on the car mode. we have done some test, if we shutdown the 925/926 the GPS signal is good, but we power on the 925/6 it will interrupt GPS antenna, so that the GPS signal will reduce 20db, max 30db.
The distance is about 15-20cm between the 925/26 communication cable and GPS antenna cable.
I have suggested customer modify their cable to the twisted-pair with reticulation shield, but the result is not good.ge
do you have any suggestion for the case? this is the key issue point for customer. thanks...