Datasheet

AD8331/AD8332/AD8334
Rev. G | Page 21 of 56
03199-058
18nF
22pF
INOUT
NETWORK ANALYZER
28
237
28
1:1
5050
0.1µF
OR
1µF
237
10k
VGA
FB*
120nH
*FERRITE BEAD
LMD
0.1µF
LNA
0.1µF
OR
1µF
INH
0.1µF
OR
1µF
0.1µF
0.1µF
Figure 58. Test Circuit—Group Delay vs. Frequency for Two Values of AC Coupling
03199-059
18nF
22pF
28
237
28
0.1µF
237
50
1:1
OUT
NETWORK
ANALYZER
50
270
FB*
120nH
*FERRITE BEAD
LMD
0.1µF
DUT
0.1µF
0.1µF
INH
Figure 59. Test Circuit—LNA Input Impedance vs. Frequency in Standard and Smith Chart (S11) Formats
03199-060
22pF
28
237
28
1:1
0.1µF
0.1µF
237
INOUT
NETWORK ANALYZER
5050
VGALNA
FB*
120nH
*FERRITE BEAD
LMD
0.1µF
0.1µF
INH
0.1µF
0.1µF
0.1µF
Figure 60. Test Circuit—Frequency Response for Unterminated LNA, Single-Ended
03199-061
18nF
22pF
28
237
28
0.1µF
INH
237
1:1
IN
NETWOR
K
ANALYZER
50
270
FB*
120nH
*
FERRITE BEAD
LMD
0.1µF
DUT
0.1µF
0.1µF
Figure 61. Test Circuit—Short-Circuit, Input-Referred Noise