Figure 9.5-13. Pmlf4036A Frequency Generation Unit (Fgu) Schematic - Sheet 1 Of 3 - Motorola XTS 2500 Service Manual

9.5-14
IF566
SSI_CLK_1
IF204
SSI_CLK_2
IF205
SSI_FSYNC_1
IF567
SSI_FSYNC_2
R295
47K
IF585
C219
SC_FILT_EN
0.10uF
C225
0.10uF
U202
AD5320BRT
R250
8
IF211 0 CLK
5 7
FL200
TX_SSI_CLK SCLK SHDN
6
MAX7414
TX_SSI_FSYNC SYNC
1 2 5
R251 VOUT IN OUT
IF212
4
0
DIN
1
COM
6
OS
IF206 R252
TX_SSI_DATA
0 C233
0.10uF
SH201 SH202 SH204
SHIELD SHIELD SHIELD
1 1 1
Figure 9.5-13. PMLF4036A Frequency Generation Unit (FGU) Schematic – Sheet 1 of 3
February 14, 2012
.01uF
4 3
A3 K3
5 2
C202
A2 K2
6 1
.01uF
A1 K1
.01uF
R200
D201 C203
100 100
.01uF
.01uF
C212
C204
0.1uF
0.10uF .01uF
4 3
.01uF
A3 K3
5 2
C205
A2 K2
6 1
.01uF
A1 K1
D202
C244
IF568 .01uF
SPI_CLK_RX
C220
IF570
SPI_CLK_TX
39pF
IF200
SPI_CLK_A
IF571
UNIVERSAL_CS_1
C222
IF202
39pF
UNIVERSAL_SPI_CS
C226
IF203
DNP SPI_MOSI_A
R293 R6
C223 39pF
8.2K 15K
220pF IF572
SPI_MOSI_RX
IF573
SPI_MOSI_TX
TP203
TEST_POINT
MODIN
C236
L204
6.8nH 39pF
PRESC
1 1
VSF
C248 C237
L207
3.3pF 0.75pF
0
2 2
39pF
-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
0.10uF 2.2uF
12.8V (Typical)
C206
R201
22pF
R202 150
33pF 150
150
150
C207
C208 C209 C210
10uF 10uF
0.10uF 39pF
R204
0
C213 C214
.01uF 2.2uF
K9
XTAL1
K10
XTAL2
F4 K6
CLK_CLK FREFOUT
G1 A6
EN_CEX MODOUT
H1 K4
MODIN VMULT1
F1 K3
DATA VMULT2
E10 K1
SFIN VMULT3
J1
VMULT4
B10
C227
PVREF
G6 A1
VBYPASS AUX1
B1
AUX2
0.10uF D7 C1
NU CPB1 U201 AUX3
A7 D1
CPB2 35U92 AUX4
H10 A9
SFCAP TEST1
G10 A8
SFBASE TEST2
R213
D10
PREIN 0
A5
IOUT
G5 A4
REFSEL IADAPT
D6 E1
CCOMP LOCK
A3
C232
ADAPTSW
2.2uF G4 G7
NC1 SFOUT
F10 K5
TEST_POINT
NC2 INDMULT TP201
F7 J10 1
NC3 WARP
C238 C239 C240
.01uF 10uF
SYNTHESIZER BOTTOM SHIELD
SYNTHESIZER TOP SHIELD
900MHz Schematics, Board Overlays, and Parts Lists
5V
(SOURCE)
R285
2K
R290
4
33K
C290
3
1000pF
R291
36K
ANA_3V
L201
2.2uH
C215 C216 C217
0.10uF 39pF 2.2uF
R294
C289
0.1uF
0 0.10uF
C211 C218
DNP
R205
0.1uF L299
3.9K Not placed
1.8uH
C221
R206 0.1uF
R207
91
200
AUX2
AUX3
C228
AUX4
.015uF
C229 R210
.015uF 750
R211
R212
0
330
C234
1uH
L203
39pF
C235
IF208
LOCK_DET
4700pF
ANA_3V
R216
L206
C241
2.2uH
Y200
47K 0.10uF Steering Line DC Voltage
45J68
16.8MHz
2 to 9V in RX mode
3 to 11V in TX mode
1 3
VCON OUT
C242
39pF
C243
R217
100
.01uF
5V
L205
2.2uH
C285
0.10uF
U205
5
CLC450 C286
R286 L290
1
1uH
2 68 1000pF
C293
100pF
IF569
16_8_RX
IF201
16_8_filtered
C295 C291 C292 C298
0.1uF 0.1uF 0.1uF 0.1uF
VCTRL
1K
R208
6816985H01-F