Technical Manual

13-25
NLE4250B, NLE4250E UHF Range 2 RF Board Schematic Diagram, Sheet 2 of 3
REF_2.1MHz
0.22uF
0.47uF
SW_B+
LOCK_DETECTLOCK_DETECT
LOCK_DETECT
SUPER_FILTER_VOLTAGE
SUPER_FILTER_VOLTAGE
SUPER_FILTER_VOLTAGE
RESET_1
MOD_OUTMOD_OUT
REG_5V
REG_5V
RESET
REF_OSC_EN
REF_OSC_EN
RX_INJ
TX_OUT
V_CTRL V_CTRL
CLOCK
CLOCK
DATA
DATA
SYNTH_CE
SYNTH_CE
MOD_IN
MOD_IN
SWB+ SW_B+
VEE
VEEVEE
VEE
TP5
Q201
D
1.5pF
C203
2.4pF
C202
C284
C
9
E2
12
GND
1
GND
13
S
S1
7
S2
14
TRB
5
TX
62U78
U201
5VI
6
B2
11
J1-33
NC
8
PS
16
RBY
15
RX
2
4
VC
10
VSF
3
3.3pF
C289
15nH
L216
Q203
.0047uF
C299
BUSS_13
BUSS_10
BUSS_11
BUSS_08
BUSS_09
.0015uF
C206
CR209
CR203
CR207
0.1uF
C279
.022uF
C303
100pF
C204
1pF
C292
22nH
TP7
L201
100pF
C238
TP8
C240
4-5pF
J1-14
CR204
A2
5
A3
6
K1
3
K2
2
K3
1
14
.0033uF
C236
4.3pF
A1
4
C235
3.3pF
C237
390nH
L204
18.9nH
L210
L209
390nH
C500
68pF
CR201
C223
4-5pF
0.1uF
C282
.022uF
4.7uF
C304
C255
LP2951CM
U202
.01uF
C274
0.1uF
C511
4
INPUT
8
1
OUTPUT
SENSE
2
L202
2200nH
9
C260
6
5V_TAP
5
ERRORFEEDBACK
7
GND
11pF
C226
SHUTDOWN
3
J1-9
100pF
C227
C233
100pF
.047uF
J1-18 18
CR202
R301
0
BUSS_12
L224
R218
100K
CR208
33nH
13pF
C243
CR205
A1
4
A2
5
A3
6
K1
3
K2
2
K3
1
3.9pF
C222
68pF
C506
J1-8
J1-12
8
3.9pF
C219
.022uF
C244
4.7pF
C205
12
220nH
L207
L223
390nH
R206
10K
10pF
C239
R217
1pF
C201
10uF
C231
15K
47K
.022uF
C270
390nH
R223
5.1pF
C220
100pF
C294
L218
10uF
C253
.01uF
C266
3.3uF
C125
L213
R118
100K
100pF
C216
C254
4.7uF
C258
100nH
4.7uF
8
DET
10
.01uF
C267
29
NC15
30
U203
23
EN_CE
7
C_EXT
27
DCWARP
9
DE
6
NC6
15
F_OUT
1
NC1
18
NC10
19
NC11
NC12
20
14
NC13
28
NC14
13
VDD
12
NC16
31
NC17
32
NC18
2
NC2
3
NC3
4
NC4
5
NC5
NC7
16
NC8
17
NC9
22
SCK
25
SI
21
SO
24
SS
V_OPT
11
V_REG
26
GND
C257
.01uF
.022uF
C210
47K
390nH
L215
2K
.01uF
C256
R214
2K
R208
R219
10
R222
R207
68K
CR206
.001uF
C245
22nH
L212
R220
2K
R221
1
3
2
1.2K
R610
0
1pF
C225
C275
0.1uF
68pF
C507
C217
100pF
100pF
100pF
C228
0.1uF
C280
C211
1.8pF
C230
CE
3
CLK
10.7nH
L211
VCC3
10
FREFOUT
25U31
U204
35
ADAPTSW
37
AUX1
38
AUX2
39
AUX3
40
AUX4
4
LOCK
5
MODIN
29
CPBIAS1
28
CPBIAS2
2
DATA
23
VEE1
11
VCC1
25
VCC2
42
PVREF
SUPFBASE
18
1
GND1
13
GND2
22
GND3
33
GND4
34
IADAPT
32
IOUT
41
VEE2
9
VMULT1
30
MODOUT
NC
16
NC1
31
NC2
43
NC3
44
21
PREIN
24
R210
SUPFCAP
17
20
SUPFIN
SUPFOUT
19
26
TST1
27
TST2
12
A/D BYPASS
36
8
VMULT2
7
VMULT3
6
VMULT4
14
XTAL1
15
XTAL2
C247
330
C290
750
100pF
L221
390nH
L220
27nH
R212
C208
100pF
C250
.001uF
120
R211
5.1pF
C214
27nH
L205
4.7uF
C271
R205
.01uF
C209
15K
22
C221
.01uF
.022uF
C246
R209
R203
470
L208
390nH
18nH
L219
Q202
R215
43K
R204
10K
R213
750
OMIT OMIT
OMIT
63B81086C74-O

Summary of content (24 pages)