Nld8898B/C/D Vhf Rf Board Schematic Diagram, Sheet 2 Of 3 - Motorola ASTRO XTS 3000 Service Manual

TP8 BUSS_1
SYNTH_CE
J1-9 9
R208
C309
330pF
3.6K
C288
R207
L218 330pF
1uH
C206
620pF
L212 C230 CR202
100nH 4.7pF C225
1.6pF
C222
5.6pF
C228
330pF C226 L211
62pF 56nH R217
L213
30K
1uH
C223
4-5pF
CR207 CR203
C270
.001uF
C227
330pF C243 C241
30pF 30pF
L209
1uH
C244
CR201
CR208
.022uF
C239 C238
330pF .220uF
BUSS_20 TP5
V_CTRL
LOCK_DETECT
BUSS_2
MOD_IN
J1-14 14
C303
.022uF
SPI_CLOCK
SPI_DATA
BUSS_3
REF_OSC_EN
J1-8 8
BUSS_4 TP7 BUSS_21
R200
SWB+
18
J1-18
0
C304 C302
330pF 3.3uF
SUPER_FILTER_VOLTAGE
C231
MOD_OUT
20K
C233
10uF
330pF
L217
1uH
C221
R219
330pF
22
R206
L216 C219
39nH 10pF
20K
R204
C220 20K 9
11 C U201
16pF
B2
12 62U78
Q202
E2
C237
10pF
C236 L208
10pF 1uH
L210 C240 R205
R209
27nH 4-5pF 30K R203
22
510
L219
22nH
C235
15pF
VEE
U202
LP2951CM
8
INPUT OUTPUT
7
FEEDBACK ERROR
3
SHUTDOWN SENSE
5V_TAP
4
SW_B+
C204
L201
330pF
33nH
L223
C202 C205
C203
10pF 3pF
120nH
5.1pF C287 C207 C208
4.7pF 2pF 6.2pF
C289
330pF
SYNTH_CE
C316
R223 .0047uF
47K L204
1uH
SUPER_FILTER_VOLTAGE
C209 C271 C250 R214
0.1uF 4.7uF .001uF 39K
L220
2
150nH
RX
4
TX
R215
16
PS
30K
8
NC R220
2K
R210
510
C213
5.6pF
L215 C211
L205
1uH
33nH
330pF C212 C253
330pF C214 10uF
OMIT 3pF
OMIT
L221
390nH
SUPER_FILTER_VOLTAGE
C252 C242
330pF 330pF
VEE
V_CTRL
LOCK_DETECT
MOD_IN
SPI_CLOCK
SPI_DATA
REF_OSC_EN
R118
100K L225
2200nH
1 REG_5V
5
2
6 C210 C277 C255 C254 C292
.022uF 330pF .001uF 4.7uF .022uF
C286
330pF
13-4
MOD_OUT
U204
R222 C280 C245 C258
25U31
1K 100pF .001uF 4.7uF
14
XTAL1
3 15
CLK XTAL2
C257
4 10
CE FREFOUT
30
CR204 A1
MODOUT
5
.01uF
MODIN
2 9
DATA VMULT1
20 8
SUPFIN VMULT2
7
VMULT3
24 6
PVREF VMULT4
12
A/D BYPASS
37 C256
AUX1
29 38
CPBIAS1 AUX2 39
28
CPBIAS2 AUX3 R218
40
.01uF
AUX4
17
SUPFCAP 100K
18 26 C266
SUPFBASE TST1 27
21
PREIN TST2
R212 C248
620 0.1uF C267
.01uF
32
IOUT
16 34
NC IADAPT
31 41
.01uF
NC1 LOCK
43 35
NC2 ADAPTSW
44 19
NC3 SUPFOUT
R211 R213
62 270
C247 C246
1uF .022uF
C274
C251 .01uF
330pF
R221
2K
13
23
EN_CE
24 7
SS C_EXT
27 11
DCWARP V_REG
9 8
DE DET
12 10
V_OPT F_OUT
22 21
SCK SO
25
SI
U203
1 32
NC1 NC18
2 31
NC2 NC17
3 30
NC3 NC16
C260 4 29
NC4 NC15
.039uF 5 28
NC5 NC14
6 14
NC6 NC13
15 20
NC7 NC12
16 19
NC8 NC11
17 18
NC9 NC10
26

NLD8898B/C/D VHF RF Board Schematic Diagram, Sheet 2 of 3

RX_INJ
TX_OUT
REF_2.1MHz
C291
.022uF
4 5 6
A2 A3
4 5 6
A1 A2 A3
CR205
K1 K2 K3
3 2 1
K1 K2 K3
3 2 1
1 C259 C285
3 .220uF .022uF
CR206
2 OMIT OMIT
S
L222
390nH
Q201
D
VEE
BUSS_5
LOCK_DETECT
3 J1-3
C308
330pF
REG_5V
BUSS_6
RESET
12
J1-12
RESET
SW_B+
63B81086C68-O