Hytera RD98 Series - Page 165

5 5
4 4
3 3
2 2
1 1
D D C C B B A A
VCO_out
VCO_out
CV
T1/T2
T9V
mod1
T9V
Fback
T5V
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Tuesday, June 14, 2011
Exciter VCO and Pre_Drive
HYT-RD-SCD-CD-
TR-988 Exciter Board
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Tuesday, June 14, 2011
Exciter VCO and Pre_Drive
HYT-RD-SCD-CD-
TR-988 Exciter Board
Model Name:
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Exciter VCO and Pre_Drive
HYT-RD-SCD-CD-
TR-988 Exciter Board
PA Pre_Drive
VCO
VCO Power
VCO Buffer
Pout
Exciter output
RD980 U(2)
▔ࢅ⧚೒˄
VCO
ǃ
buffer
ঞ
Pre_Driver
⬉䏃˅
L102
601SN1
L102
601SN1
1 2
C162
0.1u
C162
0.1u
R147 NC R147 NC
R118 15k R118 15k
C119
NC
C119
NC
L114
0
L114
0
R148 22nH R148 22nH
L127601SN1 L127601SN1
1 2
C125
2.4p
C125
2.4p
C139
0.1u
C139
0.1u
C145 NC C145 NC
C108 220p C108 220p
R137 3.3k R137 3.3k
L101
390nH
L101
390nH
C155
NC
C155
NC
L105 390n L105 390n
R141
0
R141
0
L109 390n L109 390n
L117 390n L117 390n
D108D108
21
C173 1pC173 1p
D103D103
21
L121 390n L121 390n
C154
0.5p
C154
0.5p
C141 33p C141 33p
R102 100K R102 100K
C135
NC
C135
NC
L110
BLM18AG601SN1
L110
BLM18AG601SN1
12
Q107Q107
2
31
R114 3.3k R114 3.3k
C118
2.4p
C118
2.4p
R122 NC R122 NC
L103601SN1 L103601SN1
1 2
C120
24p
C120
24p
R132 27 R132 27
C124
0.1u
C124
0.1u
C172
0.1u
C172
0.1u
C126 0.1u C126 0.1u
R133
100
R133
100
C116
47p
C116
47p
C138
470p
C138
470p
C158 470p C158 470p
R135 120 R135 120
TP101
Pout
TP101
Pout
1
C123
470p
C123
470p
R143
100
R143
100
Q105Q105
1
32
R128 120 R128 120
L107
BLM18AG601SN1
L107
BLM18AG601SN1
12
C134
NC
C134
NC
C117
470p
C117
470p
C112
7p
C112
7p
C115
0.5p
C115
0.5p
R121
0
R121
0
C168
1.5p
C168
1.5p
R140
68
R140
68
L123 27nH L123 27nH
C147
0.1u
C147
0.1u
C164
2.4p
C164
2.4p
C129 18p C129 18p
D102D102
12
R116
100k
R116
100k
C174
0.1u
C174
0.1u
C169
2p
C169
2p
C160 15p C160 15p
L125
12n
L125
12n
C101
2p
C101
2p
C104
470P
C104
470P
L106L106
R117 3.3k R117 3.3k
C114
1.5p
C114
1.5p
C157
47p
C157
47p
C133
2p
C133
2p
C148
470p
C148
470p
R103 100K R103 100K
C111 6p C111 6p
R113 NC R113 NC
C103 470P C103 470P
R145 10 R145 10
R120 15k R120 15k
Q104Q104
2
31
R144 5.6k R144 5.6k
R134
0
R134
0
L104 390n L104 390n
C146 220p C146 220p
C166 10p C166 10p
L112 56n L112 56n
D109D109
2 1
R112 120 R112 120
C156 22p C156 22p
L116 NC L116 NC
L124
12n
L124
12n
R131 8.2k R131 8.2k
R115
33k
R115
33k
R129 120 R129 120
Q102Q102
2
3 1
C136 NC C136 NC
R110 150 R110 150
R146 0 R146 0
C132 4.7uC132 4.7u
C170
NC
C170
NC
C150
4p
C150
4p
L108
27nH
L108
27nH
R139 15k R139 15k
C130 22p C130 22p
C153
1.5p
C153
1.5p
D107D107
21
R130 6.8k R130 6.8k
Q101Q101
2
31
R109 NC R109 NC
L111 47n L111 47n
C151 1.5p C151 1.5p
D110D110
2 1
R104
4.7K
R104
4.7K
R107
150
R107
150
D104D104
2 1
C102
470P
C102
470P
D105D105
2 1
R149 22nH R149 22nH
R138 33k R138 33k
R126 8.2k R126 8.2k
C144
NC
C144
NC
L115 390n L115 390n
+
C107 4.7u/10V
+
C107 4.7u/10V
L126 15nH L126 15nH
C171 470p C171 470p
Q103Q103
1 2 34
5
C106
0.1u
C106
0.1u
L118
390nH
L118
390nH
C163
2.4p
C163
2.4p
Q108Q108
2
3
4
1
C161
470p
C161
470p
C167
2p
C167
2p
L119L119
J101 Fout J101 Fout
1 2 3 4 5
C140 NCC140 NC
R119
39k
R119
39k
C110
470p
C110
470p
R106 100 R106 100
R142
100
R142
100
C165 6p C165 6p
L120 22nH L120 22nH
Q106Q106
1
32
R101 3.3k R101 3.3k
C122
0.1u
C122
0.1u
D101D101
21
R105 8.2k R105 8.2k
C127
1000p
C127
1000p
R127 22 R127 22
C143 NC C143 NC
C109
0.1u
C109
0.1u
C113 33p C113 33p
L122
BLM18AG601SN1
L122
BLM18AG601SN1
12
R136 100 R136 100
C105
470p
C105
470p
C121
470p
C121
470p
D112D112
2 1
C159
2p
C159
2p
L113 15nL113 15n
C152
4.7p
C152
4.7p
C131
3p
C131
3p
R124
0
R124
0
R108
0
R108
0
C128
18p
C128
18p
R125 3.3k R125 3.3k
C149
NC
C149
NC
C137 NC C137 NC
R123
47
R123
47
RD98X Schematic Diagram (Exciter_VCO/Buffer/Pre_Driver Circuit)
162