
REV. 0
AD8327
–6–
FUNDAMENTAL FREQUENCY – MHz
–50
–55
–70
565
15
DIST
O
R
T
ION
–
dBc
25
35
45
55
–60
–65
VOUT = 61dBmV
@ MAX GAIN
VOUT = 60dBmV
@ MAX GAIN
VOUT = 59dBmV
@ MAX GAIN
VOUT = 58dBmV
@ MAX GAIN
TPC 7. Second Order Harmonic Distortion vs. Frequency
for Various Output Levels
GAIN CONTROL – Decimal Code
–50
–55
–90
0
128
16
DIST
O
R
T
ION
–
dBc
32
48
64
112
–60
–65
–70
–75
–80
–85
80
96
FO = 5MHz
VOUT = 60dBmV @ MAX GAIN
HD2
HD3
TPC 8. Harmonic Distortion vs. Gain Control
GAIN CONTROL – Decimal Code
–70
–80
–75
–65
–60
–55
–50
–85
–90
048
32
64
16
DISTORTION
–
dBc
80
96
FO = 42MHz
VOUT = 60dBmV @ MAX GAIN
HD3
HD2
112
128
TPC 9. Harmonic Distortion vs. Gain Control
VOUT = 60dBmV @ MAX GAIN
FUNDAMENTAL FREQUENCY – MHz
–65
–80
535
–75
–70
25
45
15
–60
DISTORTION
–
dBc
55
65
VOUT = 59dBmV @ MAX GAIN
VOUT = 61dBmV @ MAX GAIN
VOUT = 58dBmV @ MAX GAIN
–55
–50
TPC 10. Third Order Harmonic Distortion vs. Frequency
for Various Output Levels
GAIN CONTROL – Decimal Code
–50
–55
–90
0
128
16
DISTORTION
–
dBc
32
48
64
112
–60
–65
–70
–75
–80
–85
80
96
FO = 21MHz
VOUT = 60dBmV @ MAX GAIN
HD2
HD3
TPC 11. Harmonic Distortion vs. Gain Control
GAIN CONTROL – Decimal Code
–50
–55
–90
0
128
16
DISTORTION
–
dBc
32
48
64
112
–60
–65
–70
–75
–80
–85
80
96
FO = 65MHz
VOUT = 60dBmV @ MAX GAIN
HD2
HD3
TPC 12. Harmonic Distortion vs. Gain Control