Figure 9.1-12. Pmld4303A/ Pmld4264B Frequency Generation Unit (Fgu) Schematic - Sheet 1 Of 3 - Motorola XTS 2500 Service Manual

VHF Schematics, Board Overlays, and Parts Lists
ANA_3V
L202
4
A1
5
2.2uH A2
6
A3
C246 C230 C223
2.2uF 0.1uF 330pF
4
A1
5
A2
6
A3
F5V_IN ANA_3V
F5V_IN
ANA_3V
TP208
TEST_POINT
SPI_CLK
SYN_SEL
SPI_DATA
PRES_IN
TEST_POINT
TP23
6816985H01-F
C206
0.1uF
D201
3
C207
K1
2
K2
1
K3
0.1uF
C208
C210 C232
10uF
0.1uF
D202
C209 ANA_3V
3
K1 L203
2
K2
0.1uF
1
2.2uH
K3
C218
C217
0.1uF
330pF
C211
F5V_IN
TP209
0.1uF
TEST_POINT
TP207
TEST_POINT
F4
CLK_CLK
G1
EN_CEX
H1
MODIN
F1
DATA
E10
TP36 SFIN
TEST_POINT
1 B10
MODIN NC PVREF
G6
NC VBYPASS
R205
39K
D7
CPB1
A7
CPB2
R204
H10
56K
SFCAP
G10
NC SFBASE
D10
PREIN
C219
10uF
G5
NC REFSEL
D6
NC CCOMP
G4
NC NC1
F10
NC NC2
F7
NC NC3
ANA_3V
L204
2.2uH
C213
0.1uF
1K
R207
R206
1
10K
C215
100pF
C234
330pF
C212
0.1uF 330pF
ANA_3V
L201
2.2uH
F5V_IN
C233
0.1uF
K9
XTAL1
K10
XTAL2 NC
K6
FREFOUT NC
A6
MODOUT
K4
VMULT1 VMULT1
K3
VMULT2 NC
K1
VMULT3
J1
VMULT4
U202
A1
AUX1 NC
B1
AUX2 NC
C1
AUX3
D1
AUX4 NC
A9
TEST1 NC
A8
TEST2 NC
A5
IOUT
A4
R202
IADAPT
E1 680
LOCK
A3
ADAPTSW NC
G7
SFOUT
C200
K5
INDMULT NC 4700pF
J10
WARP
4.6VSF_OUT
C201
2
0.1uF
L200
1uH
1
R215
10K
C221 C220 C222
330pF .01uF 10uF
SF_TP
TEST_POINT
1
168_TP
C214 TEST_POINT
3 1
VCON OUT
.01uF
Y200
Figure 9.1-12. PMLD4303A/ PMLD4264B Frequency Generation Unit (FGU) Schematic – Sheet 1 of 3
F5V_IN
L206
2.2uH
C243
0.1uF
R211
330
R210
5.1K U805
4 5
1
3
2 R216
100
C247
100pF
R208 R212
5.1K 270
C248
33pF
AUX3_TP
TEST_POINT
TRB
R203
VCTRL
220
C202 C203 C204
1K
.047uF .047uF 2000pF
R214
R201
82
VC_TP
C236 C237 C238 C239 C240
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
LOCK
C235
100pF
LK_TP
9.1-13
16.8MHz
L205
C249
1uH
68pF
C245
330pF
February 14, 2012