RF_newbie
Newbie level 4
ads dbmtov expression
Hi all,
This is the expression used by ads to convert dbm to V, can anyone shed some light on where the 8 comes from.
Example:
y = dbmtov(10 (power) , 50(Zref))
returns 2.0
Expression:
value = ( 8 * (10^((v(power)-30)/10) ) * R(Zref) )^1/2
from my hand calculation, I always get value = 1 based on input power of 10dBm and reference of 50 ohm.
Thanks a lot
Hi all,
This is the expression used by ads to convert dbm to V, can anyone shed some light on where the 8 comes from.
Example:
y = dbmtov(10 (power) , 50(Zref))
returns 2.0
Expression:
value = ( 8 * (10^((v(power)-30)/10) ) * R(Zref) )^1/2
from my hand calculation, I always get value = 1 based on input power of 10dBm and reference of 50 ohm.
Thanks a lot