Datasheet

AD8264
Rev. A | Page 23 of 40
PrA
6dB
+
–
6dB
+
–
VOCM
AD8264
GNLO
CH2
CH1
50Ω 50Ω
220Ω
SPECTRUM ANALYZER
IPPx
R
S
IPNx
GNHx
VOLx
VOHx
OFSx
VGAx
AD8129
10×
AD8129
10×
50Ω
50Ω
0.1µF
50Ω
0.1µF
1kΩ 1kΩ
0.1µF
50Ω
07736-114
Figure 88. Input Referred Noise vs. R
SOURCE
(See Figure 35)
PrA
6dB
+
–
6dB
+
–
IPPx
IPNx
GNHx
VOLx
VOHx
OFSxVOCM
VGAx
AD8264
GNLO
50Ω
DIFFERENTIAL
PROBE
CH1 CH2
50Ω 50Ω
NETWORK ANALYZER
500Ω
500Ω
07736-116
Figure 89. VOCM Common-Mode Rejection vs. Frequency (See Figure 37)
PrA
6dB
+
–
6dB
+
–
IPPx
IPNx
GNHx
VOLx
VOHx
OFSx
VOCM
VGAx
AD8264
GNLO
50Ω
CH1
50Ω
50Ω
500Ω
V
S
V
SUPPLY
OUT
SIGNAL
GENERATOR
LPF
07736-117
SPECTRUM ANALYZER
Figure 90. Test Circuit Harmonic Distortion to VGAx vs.
R
LOAD
and Various Supplies (See Figure 38)
PrA
6dB
+
–
6dB
+
–
IPPx
IPNx
GNHx
VOLx
VOHx
OFSx
VOCM
VGAx
AD8264
GNLO
50Ω
CH1
C
L
50Ω
50Ω
10Ω
OUT
SIGNAL
GENERATOR
SPECTRUM ANALYZER
LPF
07736-118
Figure 91. Harmonic Distortion to VGAx vs. C
LOAD
(Figure 39)
R
L
R
L
07736-128
AD8130
1×
PrA
6dB
+
–
6dB
+
–
VOCM
AD8264
GNLO
50Ω
CH1
50Ω
50Ω
450Ω
OUT
SIGNAL
GENERATOR
IPPx
IPNx
GNHx
VOLx
VOHx
OFSx
VGAx
SPECTRUM ANALYZER
LPF
V
SUPPLY
V
S
Figure 92. Harmonic Distortion to Differential Output vs. R
LOAD
and Various
Supplies (See Figure 40)