AD8344 查看數據表（PDF） - Analog Devices
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AD8344 Datasheet PDF : 20 Pages
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AD8344
28
IF = 70MHz
26
IF = 100MHz
IF = 200MHz
IF = 400MHz
24
22
20
18
16
14
12
10
400 500 600 700 800 900 1000 1100 1200
RF FREQUENCY (MHz)
Figure 8. Input IP3 vs. RF Frequency (RF Tone Spacing = 1 MHz)
25.0
24.5
24.0
23.5
23.0
22.5
22.0
21.5
21.0
20.5
20.0
–10 –9 –8 –7 –6 –5 –4 –3 –2 –1 0 1 2 3 4
LO LEVEL (dBm)
Figure 9. Input IP3 vs. LO Power,
FRF1 = 890 MHz, FRF2 = 891 MHz, FLO = 1090 MHz
30
VS = 4.75V
29
VS = 5.0V
VS = 5.25V
28
27
26
25
24
23
22
21
20
–40 –30 –20 –10 0 10 20 30 40 50 60 70 80
TEMPERATURE (°C)
Figure 10. Input IP3 vs. Temperature,
FRF1 = 890 MHz, FRF2 = 891 MHz, FLO = 1090 MHz
30
28
26
24
22
20
18
16
14
12
10
80
RF = 890MHz
RF = 450MHz
120 160 200 240 280 320 360 400
IF FREQUENCY (MHz)
Figure 11. Input IP3 vs. IF Frequency (RF Tone Spacing = 1 MHz)
35
NORMAL (MEAN = 24.023,
STD DEV = 0.24)
IP3 PERCENTAGE
30
25
20
15
10
5
0
23.0 23.2 23.4 23.6 23.8 24.0 24.2 24.4 24.6 24.8 25.0
INPUT IP3 (dBm)
Figure 12. Input IP3 Distribution,
FRF1 = 890 MHz, FRF2 = 891 MHz, FLO = 1090 MHz
Rev. 0 | Page 8 of 20
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