ADM213E_15 Datasheet, PDF (15/20 Pages) Analog Devices – RS-232 Line Drivers/Receivers

ADM206E/ADM207E/ADM208E/ADM211E/ADM213E
RADIATED NOISE
DUT
TURNTABLE
ADJUSTABLE
ANTENNA
TO
RECEIVER
Figure 34. Radiated Emissions Test Setup
Figure 35 shows a plot of radiated emissions vs. frequency. The
levels of emissions are well within specifications, without the
need for any additional shielding or filtering components. The
ADM2xxE were operated at maximum baud rates and
configured like a typical RS-232 interface.
Testing for radiated emissions was carried out in a shielded
anechoic chamber.
80
70
60
50
40
30
20
10
0
START 30.0MHz
STOP 200.0MHz
Figure 35. Radiated Emissions
LIMIT
Rev. E | Page 15 of 20