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Vdd L2 Vdd L1
V dd IF
C2 C3
IF OUT
C1
R3 R4
50 ohm LO IN P U T
C4
G IC GND
C7
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20 Idd (mA) 12
15
IIP3 (dBm) 9 Gain (dB) 6 OIP3 (dBm) IIP3 (dBm) 3
10
5 0 100 -3 0 -6 100 110 120 140 160 180 200 220 240 260 300 320 R3=0 (ohms), R4=Rbias (ohms) total 90 80 70 60 50 40 30 20 10 0
10
20
30
40
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IP3 / 2 _ D c
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-40 C +25 C +85 C
11
8
10
6
9
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IIP3 (dBm) 14 PLO = -7 dBm PLO = -4 dBm PLO = -1 dBm
(Vdd = 2.8)
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5
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12
4
10
3
8
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(PLO = -4 dBm)
880
885
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5
5
4
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885
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4
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c (dB)
12
Vdd (PLO = -4 dBm, RF = 880 MHz)
c
/
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10
3
8
6
2
4
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0 865 870 875
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880
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7 12 10 8 5 6 4 4 2 3 1930 0 1930
6
1940
1950
_ D c (MHz)
1960
1970
1980
1990
1940
1950
_Dc (MHz)
1960
1970
1980
1990
IIP3 (dBm) 14 13
1 IP3 / _ D c
(Vdd = 2.8v, PLO = -4dBm)
-40 C +25 C +85 C
N c (dB)
5
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(PLO = -4 dBm)
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4 12 11 10 9 8 1 7 6 1930 0 1940 2
3
1940
1950
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1960
1970
1980
1990
1950
1960
_ D c (MHz)
1970
1980
1990
N c (dB)
5
Nc / 2 _ D c
(Vdd = 2.8v, PLO = -4 dBm)
-40 C +25 C +85 C
0c (dB) 0
10
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c / 2 _ Dc
-40 C +25 C +85 C
4 8 3 6 2 4
1
2
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1940
1950
_ D c (MHz)
1960
1970
1980
1990
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1940
1950
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1960
1970
1980
1990
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/2 _Dc = 1960 MHz)
-40 C +25 C +85 C
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5
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7 4 6 3 5 2 4
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IIP3 LO<\I_L^ _Dc <\I_L^
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c (dB)
12 10
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-40 C +25 C +85 C
12
8
11
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2
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1940
1950
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1960
1970
1980
1990
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3.8
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1990
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