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| 型号： | LA72715VA |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO24 |
| 封装： | 0.225 INCH, SSOP-24 |
| 文件页数： | 8/12页 |
| 文件大小： | 200K |
| 代理商： | LA72715VA |
LA72715V, 72715VA
No.A0982-5/12
Block Diagram and Application Circuit Example
1k
1k
100k
SIF_IN
Fr
o
m
T
uner
Match
re
sistance
(*2)
4.5MHz
BPF
JUST
CLK
OUT
(open
collector)
I2
C
DAT
A
10k
MPX
IN
Base
Band
Mode
Application
controlled
by
I
2 C
N.C
N.C.
I2
C
CLOCK
TEST1
SLAVE
ADD
SELECT
V
CC
5V
MODE
I/O
EXT
_IN(R)
MUTE
H:MUT
E
OPEN/L:NORMAL
V
CC
GND
1
F
4.7
F
0.1
F
0.01
F
to
0.047
F
(*1)
1
F
EXT
_IN(L)
1
F
4.7
F
(*3)
1
F
OUT(R)
2.2
F
or
more
H:84H
OPEN:80H
L:A0H
+
OUT(L)
2.2
F
or
more
+
2.2
F
+
1
2
3
4
10
F
+
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
MAIN
SUB
CUE DET
SUB DET
LOGIC
CONT
ROL
CUE BPF
4.5fH TR
AP
15kHz
LPF
MAIN DEEM
JUST CLK
I2
C
DECODE
15kHz
LPF
3.5fH CLK.G
SUB BPF
SUB DEEM
SUB
DEMOD
COMP
REGULAT
O
R
MODE
952Hz
BPF
AM
DEMOD
SIF
MATRIX
SW
LCH
RCH
AMP(10dB)
0.1
F
SLAVE
ADDRESS
=
1000
000*B
(16PIN
:
OPEN)
SLAVE
ADDRESS
=
1000
010*B
(16PIN
:
H)
SLAVE
ADDRESS
=
1010
000*B
(16PIN
:
L)
+
47
F
100
H
R1
R2
(*2)
470k
to
1M
(*1)
V
CC
The value of (1*), (2*), and (3*) affects sensitivity for signal detection. It must be adjusted depending on the
circumstances by the user.
(1*): Recommended constant value 0.0033
F + 470k (values when tested)
(2*): Recommended matching resistor value R1=1k
, R2=1k
Recommended BPF Murata SFSRA4M50DF00-B0
(3*): Recommended constant value 4.7
F to 10k
The ceramic capacitor may be used for the electrolytic capacitor.
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