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| 型號(hào)： | AD8349AREZ-RL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類(lèi)： | 調(diào)制器/解調(diào)器 |
| 英文描述： | 700 MHz - 2700 MHz RF/MICROWAVE QPSK MODULATOR |
| 封裝： | MO-153ABT, TSSOP-16 |
| 文件頁(yè)數(shù)： | 2/28頁(yè) |
| 文件大?。?/td> | 729K |
| 代理商： | AD8349AREZ-RL7 |
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AD8349
Rev. A | Page 10 of 28
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2
0
6
4
10
8
0.2 0.4 0.6 0.8 1.0
1.4
2.4
1.2
1.6 1.8 2.0
2.6 2.8 3.0
BASEBAND DIFFERENTIAL INPUT VOLTAGE (V p-p)
2.2
03570-0-019
SSB, dBm
3USB, dBc
USB, dBC
LO, dBm
Figure 19. Third Order Distortion (3USB), Carrier Feedthrough, Sideband
Suppression, and SSB POUT vs. Baseband Differential Input Level
(FLO = 900 MHz, FBB = 1 MHz, I and Q Inputs Driven in Quadrature, TA = 25°C)
–70
–60
–50
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–65
–40
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–30
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–12
–2
–4
2
0
6
4
10
8
0.2 0.4 0.6 0.8 1.0
1.4
2.4
1.2
1.6 1.8 2.0
2.6 2.8 3.0
BASEBAND DIFFERENTIAL INPUT VOLTAGE (V p-p)
2.2
03570-0-020
LO, dBm
USB, dBc
3USB, dBc
SSB, dBm
Figure 20. Third Order Distortion (3USB), Carrier Feedthrough, Sideband
Suppression, and SSB POUT vs. Baseband Differential Input Level
(FLO = 1900 MHz, FBB = 1 MHz, I and Q Inputs Driven in Quadrature, TA = 25°C)
–70
–60
–50
–55
–65
–40
–45
–30
–35
–20
–25
–10
–15
–14
–10
–6
–8
–12
–2
–4
2
0
6
4
10
8
0.2 0.4 0.6 0.8 1.0
1.4
2.4
1.2
1.6 1.8 2.0
2.6 2.8 3.0
BASEBAND DIFFERENTIAL INPUT VOLTAGE (V p-p)
2.2
03570-0-021
SSB, dBm
3USB, dBc
LO, dBm
USB, dBc
Figure 21. Third Order Distortion (3USB), Carrier Feedthrough, Sideband
Suppression, and SSB POUT vs. Baseband Differential Input Level
(FLO = 2140 MHz, FBB = 1 MHz, I and Q Inputs Driven in Quadrature, TA = 25°C)
110
115
120
125
130
135
160
S
U
P
L
Y
CURRE
NT
(mA)
140
145
150
155
–40 –30 –20 –10
0
10203040
TEMPERATURE (
°C)
60
50
70
80
03570-0-022
VS = 5V
VS = 5.25V
VS = 4.75V
Figure 22. Power Supply Current vs. Temperature
03570-0023
500
200
NO TERMINATION
Figure 23. Smith Chart of LOIP Port S11 (LOIN Pin AC-Coupled
to Ground). Curves with Balun and External Termination
Resistors Also Shown (TA = 25°C)
03570-0-024
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–20
–15
RE
TURN
LOS
S
(dB)
–10
–5
0
700
900
1100 1300 1500 1700 1900 2100 2300 2500 2700
FREQUENCY (MHz)
VS = 5V
Figure 24. Return Loss
S
22
of V
OUT
Output (TA = 25°C)
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