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參數(shù)資料
| 型號： | LV25700PM |
| 元件分類： | 調(diào)諧器 |
| 英文描述： | AUDIO TUNER, PQFP80 |
| 封裝： | 20 X 14 MM, QIP-80 |
| 文件頁數(shù)： | 22/22頁 |
| 文件大小： | 746K |
| 代理商： | LV25700PM |
LV25700PM
No.A1709-9/68
Block Diagram
+
50
Ω
R10B 50
Ω
C15 0.022
μ
F
SG1 AC1
39
38
37
35
34
33
32
31
30
29
28
27
26
25
65
66
67
68
69
71
74
75
76
77
78
79
41
46
47
51
52
54
55
56
58
60
61
64
23
21
20
16
14
13
12
4
2
1
2
FM_RFAGC/AM_IF
AGC
VCC
_GND
FM_ANT_DR
OSC_VCC
FE_OSC1
15
SW5D
C14
0.22
μ
F
R13B
330
Ω
C18
1μ
F
8V(15pin)
I2
C_BUS
LOGIC
PLL
A/D
R21
2.7k
Ω
R22
3.3k
Ω
10k
Ω
3k
Ω
C21
0.22
μF
C22A
15000pF
C22B
1000pF
R18
33k
Ω
C16
2pF
FE_OSC2
A_QOUT
FET_GND
FET_GND2
DCMON
F3
IF_END
ST_IND
Q_OUT
RD_DA
RD_CL
S_DA
S_CK
RESET
BUS
D_V
CC
_5V
VREG_3V
D_GND
XT
AL_OUT
XT
AL_IN
XT
AL_GND
MIX_OUT2
RF
AGC_IN
_BYP
ASS
HCC_CONT
AM_RF_
AGC_OUT
1ST_IF_AMP
1ST_IF_IN
IF_V
CC
_5V
1ST_IF_OUT
IF_GND
MOD
_INDEX
2ND_MIX
_IN1
2ND_MIX
_IN2
AM_MIX2
SEP
A_ADJ
AM_LC
AM_RF
_AGC
VT_LPF
VT_COUNT
CPAM
R41
3.3k
Ω
C41B
68nF
C41A
3.9nF
RDS_LPF
CPFM
C17
3pF
FM_MIX_IN1
ANT_DAC
RF_DAC
AM_ATT_D
AM_RFAGC
MIX_OUT1
RF_VCC
_8V
AM_MIX_IN1
AM_MIX_IN2
C10
1000pF
T10
MIX_IN
T68
IFT_450k
CF3
CF_450k
SW2
SW4
SW3
AC4
SW1
FM_MIX_IN2
MPX_IN
R_OUT
HCC_C
L_OUT
BB_GND
NC_AGC
BB_VCC
AFC_C
AFC_OUT
S_METER
PD2
MRC_TIME
VSM_AC
MRC_IN
NC_IN
DET_OUT
VREF_4.9V
AM_IF_IN1
AM_IF_IN2
MUTE_CONT
PD1
C10
1000pF
C16B
330pF
L16
L_OSC
C18
150pF
C16A
2pF
VCD2
SVC704
C58
0.022
μ
F
C5
0.022
μF
C74A
0.022
μ
F
C74B
10
μ
F
C76
0.022
μF
C77
1μ
F
C78
1μ
F
C79
1μ
F
C80
0.022
μ
F
R80
30
Ω
C10B
0.022
μ
F
FM_IN
C6
0.47
μ
F
R6
470
Ω
R5
100k
Ω
R6A
10k
Ω
5V
L_AM1
6.8
μ
H
L_AM3
1mH
FET1
CPM5905
R2
680
Ω
L_AM4
47
μ
H
L_AM2
30mH
1:OPEN
2:SHOR
T
D3
1SV251
C13C
2200pF
65pF
+
C2A
22n
C2B
100
μ
F
C3
0.1
μ
F
C4A
0.22
μ
F
C4B
36pF
C4C
15pF
C53
0.22
μ
F
C56
1μ
F
C55
1μ
F
C54
0.47
μ
F
C52
0.47
μ
F
C47
0.47
μ
F
C50
0.015
μ
F
C49
0.015
μ
F
C44
0.22
μ
F
C45B
0.47
μ
F
C45
0.01
μ
F
C51
2200pF
R54
3k
Ω
R47
1M
Ω
15pF
V
ref
2.7V
AFC
Q_OUT
IF_BW_OUT
SD/ST
INJ/MPX
VCO
VSM
NC_GA
TE
D1
1SV251
17
18
19
22
1
2
RF_AGC
FM_ATT
SW5C
C8
0.22
μ
F
R8
10k
Ω
5V
1
2
SW5A
SW5B
R31
10k
Ω
R30 10k
Ω
C36 10
μ
F
C35 1μ
F
P_Cancel
N_AGC
State_DET
N_SENS
N_GA
TE
AFC_SW
Sepa_adj.
XT
AL_OSC
D/A
SW
Phase
LPF
FF
P_DEC.
38k<0
LMT
IQ_MIX.
19k<0
SD
SUB_DEC.
MA
TRIX
FM_DET
.
SMETER
FM_RF_AGC
RF_LOCAL
RDS_DEC
AFC
DIV
.
Mute
HPF
LPF
SNC
HCC
M
S
MRC
RF_DAC
AT
T
.
(I)
S_DL
(I/O)
RESET
X'T
AL_OUT
(I)
S_DA
(I/O)
Q_OUT
DC
AC FREQ
U6
+5V
51
Ω
-5V
HF
A1
1
2
C38B 3pF
C38 18pF
C39 18pF
Vb
X1 20.5M
1
3
2
(O)
ST_IND
DC
AC
U2
V.
V
(O)
VSM
(DC)
DC
VSM
(DC)
DC
V
AFC
DC
Vc
Va 0.1V
,0.6V
,3V
T80 IFT_10.7M
CF1
CF_10.7M
CF2 CF_10.7M
Vsm_AC
DC
Vsm_AC
DC/AC
MRC
OUT
DC
R-CH
OUT
AC
L-CH
OUT
AC
IF_END
DET_OUT
AM_RF_AGC
(O)
DC_MON
A_QOUT
DC/FREQ
DC
(O)
DC
DC FM_ANTD
DC FM_A
TT
DC AM_ANT_D
DC RF_DAC
ANT_DAC
F3
HCC
V
CC
_5V
V
CC
_8V
VT
(O)
F1
DI
(I)
F2
CLK
(I)
RD_DL
(O)
RD_DA
(O)
(I)
R33 10k
Ω
C33 0.1
μ
F
+
36
+ -
AM_RF_AGC
IF_LOCAL
IF_AGC
AM_DET
.
IF_AMP
.
B.V
._BPF
Q_CONT
.
+ -
CF
OUT
+5V
51
Ω
-5V
HF
A1
1
2
3
1
2
+ -
OSC
OUT
AC
U1
+5V
51
Ω
-5V
HF
A1
1
2
C17B 3pF
AC
INPUT
SW
AC1
SW1
FM
IN
IF_IN
AC2
SW2
IF
IN
IF_OUT_MONIT
OR
AC3
SW3
IF
IN
NC_IN
AC4
SW4
MRC
IN
PULSE_IN
AC5
SW5A/5B/5C/5D
PULSE
IN
INT_A
TT
SW
1
3
2
+ -
11
10
3
R13A
1k
Ω
C13C
2200pF
D2
1SV251
51
Ω
AC2 SG2
IF_IN
50
Ω
30
Ω
AC3 SG2
AM_IN
9
8
50
Ω
300
Ω
100
Ω
0.022
μ
F
0.022
μ
F
51
Ω
A
C5(PULSE)
f=1kHz
Wide=1
μ
S
0.1
μ
F
C67
1μ
F
C66
1μ
F
C65
1μ
F
C69
0.022
μ
F
C54
1μ
F
C63
0.1
μ
F
C61
0.1
μ
F
C60
18000pF
C59
1μ
F
C57
0.01
μ
F
C71
1μ
F
SW1
IF
IN
7
6
5
80
1
73
72
70
62
SW2
CF
OUT
SW3
NC
IN
SW4
PG
IN
59
44
45
48
49
50
53
57
MPX_PLL
42
43
63
24
40
V
CC
_8V
V
CC
_5V
V
CC
_3V
V
CC
_5V
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