Q.
What is “dBμV”?
- EMC Components >
- Power Line EMC Filters
A.
Noise level is expressed as the formula below, on the basis where 1[μV] is regarded as 0[dB] for the voltage generated by a LISN measurement resistor.
E (dBμV) = 20Log (V1/V2)
E: Noise level
V1: Noise voltage
V2: Reference voltage
For example, 1mV voltage is regarded as 60dBμV, and 1V is regarded as 120dBμV.
