NJG1557KB2 데이터 시트보기 (PDF) - Japan Radio Corporation
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NJG1557KB2 Datasheet PDF : 10 Pages
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NJG1557KB2
nTYPICAL CHARACTERISTICS (fRF=830~870MHz, fIF=110MHz, Lower LOCAL)
Conversion Gain,NF vs. RF frequency
V =V =2.8V,Lower LOCAL,f =110MHz,
MIX LO
IF
P =-25dBm,P =-10dBm
RF
LO
11
10
10
9
Conversion Gain
9
8
OIP3,IIP3 vs. RF frequency
V =V =2.8V,Lower LOCAL,
MIX LO
f =110MHz,P =-25dBm,P =-10dBm
IF
RF
LO
20
OIP3
18
16
14
8
7
12
10
7
6
8
6
NF
5
6
IIP3
5
4
830 835 840 845 850 855 860 865 870
RF frequency(MHz)
4
830 835 840 845 850 855 860 865 870
RF frequency(MHz)
Conversion Gain,NF vs. LO Power
V =V =2.8V,f =850MHz,f =740MHz,
MIX LO
RF
LO
f =110MHz,P =-25dBm
IF
RF
11
13
Conversion Gain
10
12
9
11
8
10
7
9
6
8
5
7
4
NF
6
3
5
2
4
-40 -35 -30 -25 -20 -15 -10 -5 0 5
LO Power(dBm)
OIP3,IIP3 vs. LO Power
V =V =2.8V,f =850.0+850.1MHz,
MIX LO
RF
f =740MHz,f =110MHz,P =-25dBm
LO
IF
RF
20
OIP3
18
16
14
12
10
IIP3
8
6
4
2
0
-40 -35 -30 -25 -20 -15 -10 -5 0 5
LO Power(dBm)
IF,IM3 vs. RF Power
V =V =2.8V,f =850.0+850.1MHz,
MIX LO
RF
f =740MHz,f =110MHz,P =-10dBm
LO
IF
LO
20
10 OIP3=+17.8dBm
0 IIP3=+8.0dBm
-10
-20
IF
-30
-40
-50
-60
-70
IM3
-80
-90
-40 -35 -30 -25 -20 -15 -10 -5 0 5 10
RF Power(dBm)
Isolation vs. LO frequency
V =V =2.8V,P =-10dBm
MIX LO
LO
45
40
35
LO to IF Isolation
30
25
20
15
10
5
LO to RF Isolation
0
720 725 730 735 740 745 750 755 760
LO frequency(MHz)
-4-
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