Figure 7-139.Huf4017A Frequency Generation Unit Overall Schematic (Sheet 1 Of 2) - Motorola ASTRO Digital XTL 5000 Detailed Service Manual

7-196
3.0 Volt Regulator
5V_Reg
U6750
LP3985
3
L6761 VEN
1 5
VIN VOUT
4
560nH
BYPASS
C6753
C6837
0.1u F
1uF C6839
.01uF
VN_T6751, VN_T6769,
VN_T6763, VN_T6755, VN_T6752
5V_Reg
IF6750
5V_Reg
IF6768
16_8_CONT
IF6756
16_8MHz
IF6752
CLOCK
SPI_CLK
IF6754
Syn_Sel
SYN_SEL
IF6751
VN_T6770
MOD_IN
IF6753
DATA
SPI_DATA
IF6769 IF6770
FS_2 FS_3
IF6771 IF6772
DOUTA_2 DOUTA_3
IF6773 IF6774
CLKOUT_2 CLKOUT_3
IF6775 IF6776
PE_2 PE_3
IF6777 IF6778
PD_2 PD_3
IF6779 IF6780
PC_2 PC_3
IF6783 IF6784
5V_AUX_5 5V_AUX_6
L6755
IF6763 VN_B6759,VN_T6750
9.3V_1
560nH
C6806 C6807
.022uF 0.1uF
IF6762
9.3V_2
Figure 7-139. HUF4017A Frequency Generation Unit Overall Schematic (Sheet 1 of 2)
May 25, 2005
VN_T6757
F3.0v
F3.0v
C6751
L6750
1uF
2.2uH
C6750
0.1uF
Y6750
OSC1672A
16.8MHz
R6754
1 3
VCONT FOUT
TP6752
1
1K
R6758
10K
TP6762
VN_T6768
R6782
0
VN_T6759
R6762
7.5K
Part Series
C6795
6700-1
6800-1
0.47uF
Q6757
R6763
47K
F9.3V
C6818 C6813
10uF 39pF
Schematics, Component Location Diagrams, and Parts Lists: HUF4017A (700-800 MHz) Main Board
VN_B6766
L6751
C6817
.01uF
2.2uH
C6757
0.1uF
R6752
100K
R6753
100K
C6758
R6756 L6756
2 4
1uH
1K
1000pF 1
NC NC
U6752 C6755
100pF
TC7SH04
R6755
100K
C6760
R6757 VN_T6760
C6765
100
1000pF
C6759
0.1uF
33pF
VN_T6756,VN_T6767
VN_T6772
VN_T6773
NC
NC
VN_T6754
C6780
C6775
R6766 R6767 R6768
NC
39pF
10uF
10K 36K 7.5K
NC
C6794
NC
NC
NC
0.47uF
TP6771
Q6759
Q6758
R6769 R6760
2K 3.3K
C6808 C6790
10uF 0.1uF
R6770
47K
VN_T6762
*E6751*
SHIELD
1
1
TP6764
F3.0v F3.0v
L6752 L6753
2.2uH 2.2uH
C6763
C6764
0.1uF
0.1uF
F3.0v
NC
4
A1
VN_T6771
C6766 5
A2
6
VN_T6761
A3
0.1uF
C6769
23
XTAL1
24
XTAL2 NC
0.1uF
8 19
4 A1
CLK FREFOUT NC
9 41
5
C6771
CEX MODOUT A2
6
A3
10 15
MODIN VMULT1 NC
7 14 0.1uF
DATA VMULT2 NC
30
12
SFIN VMULT3
TP6768
11
VMULT4
35
PVREF
21 48
VBPASS AUX1
VN_B6769
1
U6751
AUX2
40 2
63A27
BIAS1 AUX3
39 3
BIAS2 AUX4
26 37
SFCAP TEST1 NC
27 38
SFBASE TEST2 NC
32 TP6758
PREIN
43
IOUT
18 45
REFSEL IADAPT
42 4
CCOMP LOCK
46
R6764
ADAPTSW
1.5K
17 28
NC1 SFOUT
29 16
NC2 INDMULT NC
31 25
NC3 WARP
R6765
*NP*
180
C6781
1200pF
TP6755
C6785
0.1uF
C6783
C6791
0.1uF
.0012uF
TP6770
1
*E6752* *E6753*
SHIELD SHIELD
1 1
D6751
3
K1 NC
2
K2
1
K3
C6768
10uF
D6752
3
K1
2
K2
1
K3
1
2
3
4
R6761
5
510
C6776 C6777
C6778 C6779
.047uF .022uF
.047uF .022uF
1
TP6760
1
TP6756
C6786 C6787 C6788 C6789 C6782
0.1uF 0.1uF 0.1uF 0.1uF 39pF
6
7
8
MAEPF-27829-O
6881096C74-B