AD8345
–45
80
75
70
V
S
= 5V, DIFFERENTIAL INPUT = 1.2V p-p
65
60
55
50
45
40
–40
V
S
= 2.7V, DIFFERENTIAL INPUT = 200mV p-p
00932-022
THIRD ORDER DISTORTION (dBc)
–50
SUPPLY CURRENT (mA)
00932-019
–55
V
S
= 5V, DIFFERENTIAL INPUT = 1.2V p-p
–60
–65
–70
–75
V
S
= 2.7V, DIFFERENTIAL INPUT = 200mV p-p
–80
–40
–20
0
20
40
TEMPERATURE (
°
C)
60
80
–20
0
20
40
TEMPERATURE (
°
C)
60
80
Figure 15. Third Order Distortion vs. Temperature
(F
LO
= 800 MHz, LO Level = −2 dBm, F
BB
= 1 MHz,
I and Q Inputs Driven in Quadrature)
–10
–15
THIRD ORDER DISTORTION (dBc)
Figure 18. Power Supply Current vs. Temperature
1GHz
–2
–4
–6
SSB P
OUT
–8
–10
–12
–14
THIRD ORDER DISTORTION
–16
–18
–20
–22
–24
0.5
1.0
1.5
2.0
2.5
BASEBAND DIFFERENTIAL INPUT VOLTAGE (V p-p)
–26
3.0
00932-020
SMITH CHART
NORMALIZED
TO 50Ω
WITH 50Ω
–20
–25
–30
–35
–40
–45
–50
–55
–60
–65
–70
0.0
SSB OUTPUT POWER (dBm)
250MHz
WITH 100Ω
1GHz
LOIN NO BALUN
OR TERMINATION
Figure 16. Third Order Distortion and SSB P
OUT
vs. Baseband Differential Input
Voltage (T
A
= 25°C, F
LO
= 800 MHz, LO Level = −2 dBm, F
BB
= 1 MHz, V
S
= 2.7 V)
–5
–10
THIRD ORDER DISTORTION (dBc)
Figure 19. Smith Chart of LOIN Port S11 (LOIP Pin AC-Coupled to Ground);
Curves with Balun and External Termination Resistors Also Shown
(V
S
= 5 V, T
A
= 25°C)
0
4
2
0
SSB P
OUT
SSB OUTPUT POWER (dBm)
–15
–20
–25
–30
–35
–40
–45
–50
–55
–60
–65
–70
0.0
0.5
1.0
1.5
2.0
2.5
BASEBAND DIFFERENTIAL INPUT VOLTAGE (V p-p)
THIRD ORDER DISTORTION
–2
–4
–6
–8
–10
–12
–14
–16
–18
–20
–22
3.0
–5
RETURN LOSS (dB)
–10
–15
–20
V
S
= 2.7V
–25
V
S
= 5V
–30
250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000
FREQUENCY (MHz)
00932-024
Figure 17. Third Order Distortion and SSB P
OUT
vs. Baseband Differential Input
Voltage (T
A
= 25°C, F
LO
= 800 MHz, LO Level = −2 dBm, F
BB
= 1 MHz, V
S
= 5 V)
00932-021
Figure 20. Return Loss (S22) of VOUT Output (T
A
= 25°C)
Rev. B | Page 8 of 20
00932-023
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