Vhf Voltage Controlled Oscillator Schematic Diagram - Motorola GP328 Detailed Service Manual

Circuit Board/Schematic Diagrams and Parts List
R5
R5_1_VCO
R3802
100
C3804
0.1uF
L3801
R3807
1K 1K
100nH
NU
RX_INJ_1_VCO
RX_INJ
C3801
Q3801
4.7pF
C3802
R3801
22pF
220
NU
NU
R3804
10K
R3808
10 10
C3803
R3803
1000pF
220
SH3801 SH3802
SHIELD SHIELD
1 1
Vdda_3_VCO
R3811
100
C3810
L3811 C3812
L3812 C3811
10pF
100nH 0.1uF
100nH 0.1uF
NU
U3801
C3806
R3806
10
100pF
22
TX_OUT
8
RX_OUT
12
PRESC_OUT
C3805 7
R3805
RX_SWITCH
4.7pF
13
24K
TX_SWITCH
C3808
15pF
C3809 L3809
27pF 27nH
T5
TX_INJ_1_VCO
VSF
L3816
R3816
100nH
TX_INJ
1K
C3816
6.8pF
Vdda VSF
VSF_1_VCO
L3813
1uH
R3817
0 0
C3822
C3813
1000pF
R3818 .01uF
0 0
NU
C3818
.022uF
R3821
220
1
TX_IADJ
2
RX_IADJ
3
SUPER_FLTR
4
COLL_RFIN
5
RX_BASE R3825
6
RX_EMITTER 33
16
TX_BASE
15
TX_EMITTER
20
FLIP_IN
19
TRB_IN
R3831
10K
C3821
.01uF
R3832
12K
C3832
C3815
1000pF
1000pF
R3834
R3833 47
C3833
T5_1_VCO
220
4.7pF
TRB
R3830 R3829 TRB_1_VCO
0
0
PRESC_1_VCO
VSF
PRESC R3835
47K
D3832
C3830
C3825
68pF
15pF
R3822
47
L3822 L3823
L3821
C3824
56pF 56nH 47nH 47nH
C3826
4.7pF
R3826
18
C3823
L3826
.01uF
1uH
BIAS_ADJ_1_VCO
BIAS_ADJ
R3812
100K
NU
R3824
C3827
R3823
.022uF
22K 33K
C3835
6.8pF
C3836
15pF L3832 L3833
C3834 L3831
68nH 56nH
56pF 56nH
VCO_MOD
R3836
VCO_MOD_1_VCO
10K

VHF Voltage Controlled Oscillator Schematic Diagram

-35
6B
D3821
VCTRL_1_VCO
VCTRL
L3824
R3828
1uH
100
L3825 C3828
0.1uF
100nH
C3829
0.1uF
L3834 C3842
1uH 1000pF
D3831