Figure 9-178.Vhf (136-174 Mhz) Synthesizer Schematic Diagram - Motorola HT Series Detailed Service Manual

9-300
5V_1_FN
(SOURCE) 5V
C3705 C3706 C3714
0.1uF 4.7uF 4.7uF
VCTRL_1_FN
R3721
VCTRL
470
5V
Q3721
UMC5N
R5_1_FN R5_2_FN C3721
4 3 0.1uF
R5
UMC5N 2
T5_1_FN
R3723
1
T5
TP3701
C3724
1uF
VCO_MOD_1_FN
VCO_MOD
SH3701 SH3702
SHIELD SHIELD SHIELD SHIELD
Figure 9-178. VHF (136-174 MHz) Synthesizer Schematic Diagram
L3701
C3701
390nH
.01uF
4
3
K3 A3
2
A2 5
R3701
K2
C3702
1
A1 6
K1
.01uF
100
D3701
C3703
.01uF
C3704
.01uF 3 4
2 K3 A3
5
1 K2 A2
6
K1 A1
R3705
D3702
R3702 33K
NU
0
C3708
0.1uF
C3707
C3709
0.1uF
22pF
R3704
R3703
150
150
R3722 C3722
1K 0.1uF
100
16_8MHz_1_FN
16.8MHz
U3711
ADP3300 ADP3300
2
NR SWB_PLUS_1_FN
5
4
OUT IN
C3711
C3715 ERR SD
6 3
470pF 10uF
1
C3712 C3713
2.2uF
0.1uF
C3710
2.2uF
BIAS_ADJ
BIAS_ADJ_1_FN
C3746
220pF
TP3702
C3725
25
0.1uF 31
WARP NC3
NU
16 29
INDMULT NC2
28 17
SFOUT NC1
46
LOCK_1_FN ADAPTSW
42
4
LOCK LOCK CCOMP
18
45
IADAPT REFSEL
43
IOUT
32
PREIN
R3726 38 27
C3755
TEST2 SFBASE
2.2uF
47K 37 26
TEST1 SFCAP
NU U3701
3 39
TRB_1_FN AUX4 BIAS2
2 40
TRB AUX3 BIAS1
1
AUX2
R3751
48 21
AUX1 VBPASS
200K
35
PVREF
11
VMULT4 30
SFIN
12
VMULT3
14 DATA_1_FN
VMULT2
15
VMULT1 7
DATA
MODIN_1_FN
10
MODIN
41
R3741
MODOUT
CSX_1_FN
19
FREFOUT 9
CEX
100 CLK_1_FN
C3741 24 8
XTAL2 CLK
23
56pF
XTAL1
C3744
NU
220pF
Y3761 R3761
16.8MHz 47K
1 2
IN OUT
GND
C3763
C3761
3 1.6pF
56pF
R3760
D3761
C3735
0
.01uF
NU
NU
2
Y3762
R3762 C3762
OSC_16.8MHZ
2.2K R3763
330pF
NU NU
100
4 VDD 1
NU
GND
3 OSC_16.8MHZ
VHF Circuit Board/Schematic Diagrams and Parts List (PCB 8486062B12)
WARIS PORTABLE VHF
8486062B12-D RF-SECTION
Synthesizer
ILLUSTRATOR
RK
EDITOR
SWB+
C3726
R3727
8.2pF
100K
C3727 PRESC_1_FN
PRESC
100pF
R3752
330K
VSF_1_FN
VSF
C3753 C3752
C3754
0.1uF
1000pF
4.7uF
DATA
MODIN
CSX
CLK
C3742 C3745
C3743
220pF
220pF 220pF
L3731 Vdda_1_FN
Vdda
2.2uH
C3734
C3731 C3732 C3733
.01uF
.01uF .01uF 2.2uF
5V
C3751
0.1uF
NU
ZWG0130022-C
MEDIA & COMMUNICATIONS DEPT.
DWG. NO.
ZWG0130022
DATE REGION Issue: Revision Detail:
C
25.Nov 1998
TAU
DATE Application : Release Date:
Adobe Illustrator 7.0