This design is built and tested with the goal to pass CISPR 25 class 5 standards, the strictest of the CISPR classification standards. This CISPR EMI testing is done with a third-party facility and follows the international standard "to protect on-board receivers from disturbances produced by conducted and radiate emissions arising in a vehicle" (CISPR 25 Ed. 3.0 b: 2008, pg. 7) meaning that this particular reference design is tested to make sure that the design does not interfere with other equipment in the vehicle. As outlined in the standard, that radiated disturbances do not disrupt the broadcast and mobile service or band. For this particular reference design, broadcast standards are tested at peak, quasi-peak, and average ratings. For this test, a car battery or a 14.4V power supply is used in conjunction with short cables to test at optimized performance. Additionally, resistive load 4Ω to generate 1W is used. Figure 3-7 and Figure 3-8 show the setup and results of the CISPR 25 class 5 testing.

Figure 3-7 CISPR 25 Class 5 Test Setup for the TIDA-060048

Figure 3-8 Radiated CISPR 25 Class 5 Testing Results for the TIDA-060048