Figure 7-5. Vco And Pll Schematic Diagram - Motorola P100 Series Detailed Service Manual

Circuit Board/Schematic Diagram and Parts List (UHF2: 435–480 MHz)
PLL_STB
PLL_DATA
PLL_CLK
PLL_PS
+3.3V
+5V
+5V
+
Q705
KRA305
C538 C539
10nF 10uF / 16V(A)
RX_EN
VCO_OUT(RX)
Q706
KRA305
E
B
TX_EN1
VCO_OUT(TX)
R715 R714
56R 56R
C731
C730
2pF
2pF
Q711
KRA304
+3.3V
L709
22nH
R729
100K
C747 C746
10pF 10pF
C755
R730
0.1uF(K)
33K
R735 R736 R737
1K
1K 1K
10 11 12 13
9 14 15 16
U701
R732
10K MB15E03L
8 7 6 5 4 3 2 1
C738
C756
7pF
1nF
R731
10R
R733
C741
0R
0.1uF
R734
12.8MHZ VCXO
10R
4 3
VCC OUT
1 2
VCON GND
C740 C739
FL701
U502-B
0.1uF 1nF
NJM324
7
R503
56K
R701
L701
56R +
27nH
R702
1.5K
C701 C702
22uF / 10V(A) 1nF
Q701
2SC4226
C728
R703
4pF
C705
4.7K (1%)
2pF
Q702
C710
2SC4226
R706 TZY02 6pF
C704
100R
1nF
C C709 C711
4pF 13pF
L703
C706
R704
30113TL
3pF
4.7K (1%)
CR701
+
KDV154E
L704
C715 C714 220nH(1608)
C707
22uF / 10V(A) 1nF
9pF
R705
220R
C712
470pF
L708
27nH R711
100K
R707 L705
Q703 C722
2SC4226 1.5K 2.2uH(1608)
C729 TZY02 6pF
6pF
C723
C717 C721 C724
0.5pF
3pF 3pF 11pF
Q704 R708
2SC4226
4.7K (1%)
L706
C716
30103TL
470pF C725
470pF
CR703
C718
R709 KDV154E
4pF
6.8K (1%)
L707 R713
C719 C726
220nH(1608)
30K
1pF
7pF
R712
100K C727 CR702
R710
2pF
220R KDV154E
PLL_LD
+10V
C748
0.1uF
R717
R716
10R
300R C749
R718 1uF(1608)
7.5K
R719
1K Q708
Q707
+3.3V KTA2014
KTC4075
R740 R727
1.5K 2.7K
R720 150R
R721 150R Q710
R726
Q709 KTC4075
3K
KTA2014
C752 C753
R722 10K
0.1uF(K) 47nF(3216)
+
C751
1uF / 35V
R723 R725
R724
1K 100R
C750 390R
0.1uF
5
1 / 2VCC
6
C515 C575
R506
0.1uF 47pF
10K
R504
47K
R505
12K
SH101
R728
2.7K
C754
47nF(3216)
SH102
+
C516
10uF / 16(A)

Figure 7-5. VCO and PLL Schematic Diagram

7-7