AD8346
–30
–32
–40
V
P
= 2.7V
–45
–34
SB SUPPRESSION (dBc)
INPUT THIRD HARMONIC
DISTORTION (dB)c
V
P
= 3V
V
P
= 3V
–36
–38
–40
–42
–50
V
P
= 5.5V
–55
V
P
= 5V
–60
V
P
= 5.5V
V
P
= 5V
V
P
= 2.7V
05335-019
–44
–40 –30 –20 –10
0
10 20 30 40
TEMPERATURE (°C)
50
60
70
80
–65
0
2
4
6
8
10
12
14
16
BASEBAND FREQUENCY (MHz)
18
20
Figure 19. Sideband Suppression vs. Temperature.
F
LO
= 1900 MHz, I and Q inputs driven in quadrature
with differential amplitude of 2.00 V p-p at F
BB
= 100 kHz.
–30
–35
–40
INPUT THIRD HARMONIC
DISTORTION (dBc)
Figure 22. Third Harmonic Distortion vs. F
BB
.
F
LO
=1900 MHz, I and Q inputs driven in quadrature
with differential amplitude of 2.00 V p-p.
–6
52
50
SUPPLY CURRENT (mA)
SSB P
OUT
–8
–10
48
V
P
= 5.5V
46
V
P
= 5V
44
42
V
P
= 3V
40
V
P
= 2.7V
05335-023
–45
–50
–55
–60
–65
–70
–75
–80
0.5
3RD HARMONIC
–18
–20
–22
1.0
1.5
2.0
2.5
BASEBAND DIFFERENTIAL INPUT
VOLTAGE (V
p-p)
3.0
–12
–14
–16
SSB OUTPUT POWER (dBm)
38
05335-020
36
–40
–20
0
20
40
TEMPERATURE (°C)
60
80
Figure 20. Third Harmonic Distortion and SSB Output
Power vs. Baseband Differential Input Voltage Level.
F
LO
= 1900 MHz, I and Q inputs driven in quadrature at F
BB
= 100 kHz.
0
–5
–10
RETURN LOSS (dB)
Figure 23. Power Supply Current vs. Temperature
0
–5
–10
T = –40°C
–15
–20
–25
T = +25°C
–30
05335-021
RETURN LOSS (dB)
–15
–20
–25
T = +25°C
–30
T = –40°C
T = +85°C
–40
800
1000
1200
1400 1600 1800 2000
FREQUENCY (MHz)
2200
2400
–40
800
1000
1200
1400
1600
1800
2000
2200
2400
FREQUENCY (MHz)
Figure 21. Return Loss of V
OUT
Output vs. F
LO
.
V
POS
= 2.7 V.
Figure 24. Return Loss of V
OUT
Output vs. F
LO
.
V
POS
= 5.0 V.
Rev. A | Page 9 of 20
05335-024
–35
–35
T = +85°C
05335-022
AD [ ANALOG DEVICES ]
