Technical Manual

13-3
NLD8898B/C/D VHF RF Board Schematic Diagram, Sheet 1 of 3
0.1uF
0.1uF
0.1uF
BAT_STATUS
BAT_STATUS
GROUND
GROUND
GROUND
GROUND
GROUND
SPI_CLOCK
SPI_DATA
SPI_DATA
RESET
LOCK_DETECT
DA_CE
REG_5V
IF_FREQ
330pF
C315
SW_B+
TX_OUT
RAW_1_B+
.01uF
C84
C502
330pF
C501
330pF
R4
10K
R111
ANODE1
ANODE2
C4
5.6K
GND
D3
INT_CAP2
C3
62U72
U101
E4
TEMP_SEN
B1
TX_5V
C2 B3
B+
BIAS_EN
B2
BIAS_RT
C5
CATH_1
D4
CATH_2
A4
C_BIAS
D2
4.7K
IN_CAP1
E2
PA_BIAS
A3
REF_V
C1
RF_DET
E3
RX_5V
A2
RX_I
B4
100
TX_I1
D5
TX_I2
B5
V_CTRL
D1
10K
R102
R7
R101
Q111
D1
2
C86
6.2pF
C15
.01uF
33pF
C99
R10
47K
3
1
330pF
C146
TP12
2
3
1
10K
FMW1
Q108
53
1
VR1
20V
4
U002
29V26
10
BBP
R103
7
GND1
9
GND2
11
VCC
2
GND
4
IFN
6
IFP
8
LOIN
2
14
GND4
16
GND5
NC
5
NC1
13
1
RFN
15
RFP
12
BDIV
C31
.01uF
J3-1
3
GND3
33.47nH
L127
16
42.90nH
L126
C14
1uF
21.95nH
L11
J1-16
L128
0
R9
59.71nH
R125
24pF
C150
1uH
470
17
100K
L122
C149
24pF
J1-17
47nH
L30
R128
47
1uH
C161
0.1uF
C152
330pF
L121
Q110
1
2
3
51
R126
C310
330pF
BUSS_12
0.1uF
C118
Q1
C154
330pF
01J69
U104
FWD_PWR
1
FWD_TRM
6
7
GND GND
16
8
GND
9
GND
10
GND GND
11
GND
12
GND
13
GND
14
GND
15
5
PWR_IN
2
PWR_OUT
REV_PWR
4
REV_TRM
3
CR9
330pF
C503
330pF
C113
CR6
R113
330pF
C504
BUSS_15
10K
BUSS_19
1uF
C112
1
2
3
4
5
BUSS_18
T1
BUSS_13
C148
1pF
CR109
BUSS_17
E3
5V
D2
ANT_EN
E2
BIAS_EN
CE
C3
D4
CLK
B3
GND
D1
NC
B2
REF_DA
D3
RESET
C1
RX_DA
B1
R_T
U102
62U70
C4
SC3
D5
SC4
A3
SW1
B5
SW2
A4
SW_C
C2
TX_DA
E4
DAT
A2
GND
B4
SC1
C5
SC2
CR3
L14
43.67nH
BUSS_11
1.5K
R106
182K
R2
5.1
150
330pF
C98
R115
R8
ERROR
57
FEEDBACK
J3-3
C7
6.2pF
U106
LP2951CM
5V_TAP
6
4
GND
8
INPUT
1
OUTPUT
2
SENSE
3
SHUTDOWN
R1
C147
330pF
5.1
CR108
C140
330pF
Q107
FMC2A
10pF
C6
4
.01uF
C13
330pF
C141
L8
5
2
1
3
CR103
1
3
2
C115
1uH
Q101
1
3
2
C88
2.2K
CR102
R110
10pF
C107
330pF
C104
3.3uF
J1-1313
L102
1uH
130K
R116
1uH
L130
C85
10uF
L12
47nH
L3
CR2
470nH
47K
10pF
C130
1pF
C129
F1
R117
8.2pF
C151
C11
.01uF
BUSS_16
13pF
C97
R11
CR8
R3
22K
470
L16
21.95nH
C301
CR1
SHW5071
U105
5
B+
2
BIAS
4
BIAS1
4.7uF
RF_IN 1
RF_OUT
6
VCNTR
3
0.1uF
C77
20
16pF
C8
RT101
330pF
50k
J1-20
100pF
C164
330pF
C111
C133
10uF
C103C101
0.1uF
C132
330pF
.01uF
C82
C163
100pF
L5
47nH
C126
3.3uF
J1-10
330pF
C108
C87
16pF
J1-7 7
10
C135
1uH
L101
J1-19
330pF
19
1uF
C109
VR3
20V
2
3
1
E101
CR7
J1-55
T2
12
3
4
5
33pF
C80
10K
R5
J1-66
43.67nH
L13
330pF
C4
C83
.01uF
CR4
C123
J3-2
TP11
330pF
C505
2
3
4
1
J2
10uF
C106
TP10
C12
330pF
330pF
BUSS_14
1uH
L105R127
C102
510.1uF
C510
C153
J1-1515
330pF
C105
C121
330pF
39nH
L4
R114
15K
1.2pF
C116
OMIT
OMIT
63B81086C67-O