Figure 9.5-14. Pmlf4036B Frequency Generation Unit (Fgu) Schematic - Sheet 1 Of 3 - Motorola XTS 2500 Service Manual

900MHz Schematics, Board Overlays, and Parts Lists
IF566
SSI_CLK_1
IF204
SSI_CLK_2
IF205
SSI_FSYNC_1
IF567
SSI_FSYNC_2
R295
47K
C219
IF585
0.10uF
SC_FILT_EN
C225
0.10uF
U202 FL200
AD5320BRT
MAX7414
R250
8 CLK
IF211
0
5 7
TX_SSI_CLK SCLK SHDN
6
TX_SSI_FSYNC SYNC
1
2
VOUT IN OUT
IF212 R251
4
DIN
0
1
COM
6
OS
IF206
TX_SSI_DATA
R252
C233
0
0.10uF
SH201 SH202
SHIELD SHIELD
6816985H01-F
4 3
A3 K3
5 2
C202
A2 K2
6 1
.01uF
A1 K1
R200
D201
C203
100
.01uF
C212
C204
0.1uF
.01uF
4 3
A3 K3
5 2
C205
A2 K2
6 1
.01uF
A1 K1
D202
IF568
SPI_CLK_RX
C220
39pF
IF570
SPI_CLK_TX
IF200
SPI_CLK_A
C222
IF571
39pF
UNIVERSAL_CS_1
IF202
UNIVERSAL_SPI_CS
IF203
R6 SPI_MOSI_A
R293
15K
8.2K C223
DNP
IF572
220pF
SPI_MOSI_RX
5
IF573
SPI_MOSI_TX
TP203
TEST_POINT
MODIN
R214
12K
C236
L204
39pF
6.8nH
PRESC
1 1
VSF
C248 C237
L207
3.3pF
0.75pF
0
2 2
SH204
SHIELD
-20dBm RX VCO
-35dBm Second Harmonic RX VCO
-18.5dBm TX VCO
-33.5dBm Second Harmonic TX VCO
All values above are 'typical'
Measured with HP85024A
High Frequency Probe
L200
2.2uH
C200 C201
2.2uF
0.10uF
12.8V (Typical)
C206
R201
22pF 150
R202
150
C208 C207 C209
C210
C244 10uF 10uF 0.10uF
39pF
.01uF
R204
0
C213
.01uF
K9
XTAL1
K10
XTAL2
F4
K6
CLK FREFOUT
G1 A6
CEX MODOUT
H1 K4
MODIN VMULT1
F1 K3
DATA VMULT2
C227 E10 K1
SFIN VMULT3
0.10uF J1
VMULT4
NU
B10
PVREF
C226
G6 A1
VTMP AUX1
39pF B1
AUX2
D7 C1
CPB1 AUX3
U201
A7 D1
CPB2 AT25016 AUX4
H10 A9
SFCAP TEST1
G10 A8
SFBASE TEST2
D10
PREIN
A5
IOUT
G5 A4
REFSEL IADAPT
D6 E1
CCOMP LOCK
R215
A3
C232
ADAPTSW
20K
G4 G7
2.2uF NC1 SFOUT TEST_POINT
F10 K5 TP201
NC2 INDMULT
F7 1
J10
NC3 WARP
C238 C239 C240
10uF
39pF
.01uF
Figure 9.5-14. PMLF4036B Frequency Generation Unit (FGU) Schematic – Sheet 1 of 3
5V
(SOURCE)
R290
C290
33K
1000pF
R291
36K
ANA_3V
L201
2.2uH
C215 C216 C217
0.10uF 39pF 2.2uF
C214
C289
2.2uF
R294
0.10uF
0
C211
0.1uF
DNP C218
R205
L299
0.1uF
3.9K 1.8uH
NU
R206
R207
C221
91
200
0.1uF
AUX2
AUX3
C228
AUX4
.015uF
C229
R210
.015uF 750
R213 R212
0 330
L203 C235
C234 1uH
4700pF
IF208
39pF
LOCK_DET
ANA_3V
R216
L206
47K
2.2uH
C241
Y200
TTS12VS-A3
0.10uF
16.8MHz
1 3
VCON OUT
C242
39pF
C243
R217
.01uF
100
9.5-15
5V
L205
2.2uH
C285
0.10uF
R285
2K
C286
R286 L290
4 5 1000pF
68 1uH
1
3
2
U205
C293
LMH6723
100pF
IF569
16_8_RX
IF201
16_8_filtered
C295 C291 C292 C298
0.1uF 0.1uF 0.1uF 0.1uF
R211
0
VCTRL
R208
1K
TP202
Steering Line DC Voltage
2 to 9V in RX mode
3 to 11V in TX mode
February 14, 2012