4-8
SH200
SH201
SHIELD
SHIELD
1
1
C241
FN_PRESC
PRESC
100pF
C240
1.3pF
FN_DATA
SPI_DATA_OUT
FN_MOD
MOD_IN
FN_SYNTH_CS
SYNTH_CS
FN_CLK
SPI_CL K
Reference Oscillator
Crystal
TCXO
C201
220pF
NU
C202
62pF
NU
C203
2.7pF
NU
C206
NU
0.01uF
R202
150k
47k
R206
NU
100
D201
1SV232
NU
Y201
14R06
NU
Y202
NU
45J68
UHF2 (438-470 MHz) Synthesizer Schematic Diagram
UHF R2 Synthesizer
R230
R247
47K
22K
31
NC
NC3
29
INDMULT 16
NC
NC2
17
NC
NC1
ADAPTSW 46
42
NC
CCOMP
18
NC
REFSEL
32
PREIN
27
NC
SFBASE
26
SFCAP
39
BIAS2
C230
40
BIAS1
U201
2.2uF
21
NC
VBPASS
63A 27
35
NC
PVREF
30
SFIN
7
DATA
10
MODIN
9
MODOUT 41
CEX
8
FREFOUT 19
CLK
C207
C208
C209
C210
470pF
470pF
470pF
470pF
FN_3V
L211
3V
390nH
C212
C213
C214
.01uF
2.2uF
1000pF
5V
FN_5V
R212
5V
0
C215
C216
2.2uF
0.1uF
C233
C231
C232
1000pF
0.1uF
4.7uF
WARP 25
NC
SFOUT 28
NC
4
LOCK
IADAPT 45
IOUT 43
TP200
TEST2 38
R246
NC
1
TEST1 37
NC
100K
AUX4 3
NC
FN_TRB
AUX3 2
TR B
AUX2 1
R202
NC
TX: 3V
AUX1 48
150K
NC
RX: 0V
VMULT4 11
NC
VMULT3 12
NC
VMULT2 14
VMULT1 15
XTAL2 24
5V
XTAL1 23
C202
C201
Y202
C211
45J68
62pF
220pF
NU
1%
0.1uF
4
VCC
C206
R206
3 OU T
1
VCON
16.8MHz
NU
NU
GND
Y201
2
14R06
16.8MHz
3
1
OUT
IN
D201
C203
GND1
GND
4
2
2.7pF
3.7%
R223
100
C217
C218
C219
1000pF
2.2uF
0.1uF
UHF2 PCB 8486348Z13-C Schematic Diagrams
FN_V_SF
4.5V
V_SF
FN_LOCK
LOCK
LOCK: 3V
C204
UNLOCK: 0V
470pF
C243
R243
820
0.1uF
PT08MTPB49
R244
51
1
C245
VCO_MOD
FN_VCO_MOD
1uF
R205
R220
R221
100
91
91
C220
FN_16_8
16_8_MHZ
22pF
C205
C221
NU
.01uF
C222
3V
.01uF
0V
C223
3V
.01uF
0V
C224
.01uF
C228
C227
C226
C225
R227
NU
1000pF
0.1uF
10uF
10uF
FN_V_STEER
R245
3.2V to 4.5V
V_STEER
1.5K
C244
.01uF
TP240
3
A3 4
K3
5
2 K2
A2
1
6
K1
A1
D220
NC
NC
3
4
K3
A3
2
A2 5
K2
1
6
K1
A1
D221
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