U4254BM Datasheet, PDF (9/12 Pages) TEMIC Semiconductors – Low-Noise AM/FM Antenna Impedance Matching IC

Test Circuit for AM Large Signal Behavior
U4254BM
LPF
f_cutoff = 500 kHz
1 nF
50 W
50 W
f = 500 kHz
V₀
AMOUT1 ^{100 nF}
DUT
AMIN
AMOUT
100 nF
Analyzer
5 kW
W R_in = 50
115 dBmV 75 dBmV
13935
Figure 14.
AM Harmonic Distortion
m _m ^VAMOUT
(dB V) _{115 dB V}
110
90
70
55dBmV
50
45 dBmV
0.5
1.0
1.5
Figure 15.
f (MHz)
13936
TELEFUNKEN Semiconductors
Rev. A1, 08-Jul-97
9 (12)