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155
SCHEMATIC DIAGRAM /
原理图
NX-300
R : 4.94V
T : 4mV
T : 3.8mV
R : 4.94V
T : 1.63V
T : 1.633V
T : 1.615V
R : 0.5mV
R : -35mV
T : 0.808V
R : 3.14V
T : 46mV
R : 2.96V
T : 46mV
T : 43mV
R : 1.29V
T : 47mV
R : 4.53V
R : 4.54V
T : 46mV
T : 47mV
R : 4.89V
T : 45mV
R : 1.99V
T : 13.6V
T : 43mV
R : 137mV
R : 3.8mV
T : 42mV
T : 14.3V
R : 14.26V
T : 13.72V
R : 13.65V
R : 14.28V
T : 14.32V
R : 14mV
R : 12mV
T : 42.7mV
R : 0.87V
R : 0.82V
R : 0.88V
R : 7.25V
T : 13.6V
R : 7.25V
T : 2.32V
T : 2.10V
L : 1.52V
H : 2.32V
L : 1.80V
H : 2.10V
470p
470p
Q705
3SK318
L706
C743
R740
47
C745
0.01u
9p
C746
470p
R743
680
R744
220
560n
L708
L707
270n
BPF
C750
C748
470p
R747
0.01u
150k
R745
R746
Q703
3SK318
1k
CN702
C752
470p
470p
100k
L71
1
C747
C744
0.01u
C741
C742
4.7u
R742
470p
4.7k
L710
C753
C749
10p
C751
L709
C755
9p
0.1u
C766
3
4
R758
TV2
10k
TLV2381ID8V
2
1
5
IC702
4
3
C780
0.1u
100k
R764
R769
TV1
10k
R774
100k
820k
R763
1
2
5
IC703
R773
820k
R777
10k
220k
R749
R748
100k
C777
470p
C779
C782
R771
0.5p
C785
150
L717
R768
0.01u
0
220n
R770
68
C783
C784
1u
2SK1830F
C791
R783
R780
0
R781
1.8k
470p
470k
220k
D705
HSC1
19
470p
C786
Q706
R779
68k
C788
R772
0
R775
100k
R778
100k
0.1u
C789
470p
R784
50T
+B
1st LO
50R
RX
DC AMP for BPF
DC AMP for BPF
RF AGC
RF AMP
MIXER
RF AGC
Q704
2SC5383-T111
270
R665
270
R666
C661
470p
C975
PRE-FINAL AMP
RF FINAL AMP
HVC131
D607
C662
HVC131
C669
C666
C668
C664
C663
100p
L613
C667
C665
L612
82k
R667
L614
D606
HVC131
HVC131
D709
4p
C803
D71
1
C810
L725
ANTENNA SWITCH
RD01MUS1-T113
Q603
18n
L606
47
R631
R630
470p
C625
R632
0
R634
10p
C628
1u
C630
470p
C632
C627
220
R636
470p
C629
L607
10k
R639
33k
R646
470p
C635
R644
470p
C634
C639
0
R650
47p
C692
L610
150p
150p
C643
RD07MVS1BT122
Q606
C642
C645
0.1u
C648
0.01u
C646
0.01u
1u
C649
L609
L723
100p
C660
220n
L61
1
ANTENNA SWITCH
1SV286F
D702
L713
C767
1.5p
C764
0
R753
0
R752
0
R750
0
R765
470p
C778
C773
C768
1p
C758
470p
R757
100
R761
C765
470p
C771
470p
C775
470p
D703
C772
1SV286F
C770
L714
R759
D704
C776
1SV286F
C774
L715
R760
C769
470p
R762
10k
1SV286F
C801
470p
R788
D708
C804
1.5p
C798
L721
1SV286F
L722
4p
C802
C796
470p
470p
C794
R785
D706
C795
R799
0
0
R786
C807
C811
0
R791
L726
100p
C850
D710
1SV286F
C849
R790
470p
C799
470p
HSC1
19
D700
4.7k
R755
1u
C761
150C
VARI-CAP TUNE
D702-704
VARI-CAP TUNE
D706,708,710
RIPPLE
FILTER
FILTER
RIPPLE
TX
L716
4T
7T
4T
4T
4T
Strip line
ANT
C988
C989
C609
R800
IN-
IN+
VDD
GND
OUT
TLV2381ID8V
VDD
IN+
IN-
GND
OUT
R951
5.6k
10k
33p
22
15p
27p
6.8n
L903
1p
2.5p
3p
1.5p
10p
8p
2.5p
9p
4p
6.8n
0
4p
15n
15n
4p
4p
9p
5p
C754
C756
33n
10n
12p
3p
10n
12p
2p
10n
1M
1M
1M
12p
1.5p
R954
0
11
p
10n
3p
11
p
1M
1M
C800
1M
10n
39n
7p
3p
8p
0
4
X57-737 (A/2) 4/4
7
6
5
4
3
2
1
BR
BQ
BP
BO
BN
Note : The components marked with a dot (
•
) are parts of layer 1.
TX-RX UNIT (X57-7370-11) (A/2)