LV25450PNW
Sample Application Circuit
XT
AL_V
CC
5V
No.A1668-39/40
64
63
62
61
60
59
58
57
55
56
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26
25
27
28
29
30
31
32
280
Ω
10.7OUTN
C29 0.022
μ
F
+
280
Ω
R34 15k
Ω
R44 1.8k
Ω
R42 3.9k
Ω
R42B
XT
AL_16k
C45 0.1
μF
C47 0.022
μF
10.7OUTP
DIV_OUT_IF
10.7M_OUT_P
10.7M_OUT_M
AGC_DAC_S
C30 0.022
μ
F
DO
CL
AGC_DAC_S
IF
AGC_GND
IF
AGC_V
CC
B
VREG
3V
Analos-IF
AGC
Disital
V
CC
CE
DI
CE
IF_N_IN1
IF_N_IN
Bypass
Analog
VCC
VREG49
IF_OUT
Address_SW
AM_NAGC
AM_ANALOG_IN
VSM_AC
VSM_DC
AM_ANALOG
_IN BYPASS
Analog
GND
IFAGC
Driver
GND
IFAGC
Driver
VCC
VREG27
OSC_B
OSC_C
FM_FEL_IN
AM_FEL_IN
AM_CP OUT
FM_CP
OUT
VREG 4V
Disital GND
XTAL_VCC
XT
AL_OSC
XT
AL_OSC
OUT2
FM_IN
V
CC
8V
A
M_IN
CL
DO
pull
up
DI
V
CC
D5V
KT
AL_OUT
KT
AL_IN
CS
IF
AGC_V
CC
8V
IF
AGC_Driver
V
CC
8V
XT
AL_GND
snd
XT
AL_DSC
AM_ANT_D
RF_AGC BYP
ASS
AM_RF_AGC
AM_W
AGC
CF_180k
RF_DAC
ANT_DAC
MIX_OUT2
N_AGC
MIX_OUT1
AM_MIX
FM_MIX1
FE_V
CC
8V
FM_MIX2
IN
IN1
IN2
FM_ANTD
OUT2
GND
EEPROM
TEST
NC
V
CC
4
3
2
1
5
6
7
8
DO
DI
SK
CS
30k
Ω
47k
Ω
30
Ω
VCCA5V
FM amp
AM amp
AM
1st
AMP
W
AGC
RF
AGC
N
AGC
ANT
d
+ -
VREG3
VREG4
IN3-1
IN1/IN2
bus
BUFF
CP1
SW
R1
1
R1
1
2.2k
Ω
C60
0.1
μ
F
C51 1μ
F
C62
0.022
μ
F
C53 30pF
C49 0.022
μ
F
R56 30k
Ω
R62C 180
Ω
R57 30k
Ω
R62 30
Ω
coil
C54
L72
C62 10pF
C63 10pF
C1000 8pF
VCD2
SVC208
C15 0.22
μF
AM_Filer
FET_GND
FM_RF_AGC
Local_OSC
GND
C8
0.01
μF
C15 0.22
μF
C107 1000pF
C63 0.1
μF
C38
1000pF
4.5M
C36 0.1
μF
C38 0.022
μF
C34
0.22
μF
C18 15pF
C26
0.22
μ
F
C17 10pF
C25 1μ
F
C10A 1
μ
F
C107 0.1
μ
F
C16A 0.022
μ
F
C16B 10
μ
F
C16 0.1
μ
F
C1
1A
0.033
μF
R10 1.3k
Ω
C1
1B
2200pF
10k
Ω
3k
Ω
+8V
C2
2.2
μ
F
+
C58B 0.022
μF
C62C 1000pF
C58A 100
μF
+
C35A 10
μ
F
C35B 0.022
μ
F
C27A 10
μ
F
C27B 0.022
μ
F
+
C41A 10
μ
F
C41B 0.022
μ
F
+
R2
220k
Ω
C107 1000pF
C105 5pF
C103 4pF
0.15
μH
C101 18pF
100pF
KV1862
Pin_D2 1SV251
R635 180
Ω
R63M 180
Ω
R107A 100k
Ω
R107B 100k
Ω
R64 100
Ω
R4 30k
Ω
C5 3pF
C4 2pF
C48 1pF
C45
330pF
SW
FM
OSC
K
AGC
N
AGC
W
AGC
ANT_DAC
RF_DAC
ANT
D
RF
AGC
div
BUFF
reference
counter
programable
divider
phase
detecter
swallow
counter
OSC
BUFFER
IN3-2
AM
MIX
IQ
MIX
VSM
VREG49
VREG27
1/12,1/8
1/6,1/4
+
FM
cut
6.8
μH
R101G
1M
CPH5905
C50 10μ
F
15pF
36pF
C101
0.022
μF
Loding
coil
D70
1SV251
C52 0.022
μF
C56
1000pF
C57
1000pF
R52B 470
Ω
R49C 220
Ω
L49A 1mH
L70B
47
μH
R49
470
Ω
C61
0.022
μF