
LA72715NV
No.A1770-5/13
Block Diagram and Test Circuit
4.5MHz
BPF
I2
C
D
ATA
MPX
INPUT
Base
Band
Mode
Application
controlled
by
I
2 C
N.C
N.C.
I2
C
CLOCK
TEST1
SLA
VE
ADD
SELECT
V
CC
5V
EXT_IN(R)
MUTE
H:MUTE
OPEN/L:NORMAL
V
CC
GND
EXT_IN(L)
OUT(R)
H:84H
OPEN:80H
L:A0H
+
OUT(L)
+
1
2
3
4
+
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
CONTROL
CUE BPF
4.5fH TRAP
15kHz
LPF
MAIN DEEM
JUST CLK
I2
C
DECODE
15kHz
LPF
3.5fH CLK.G
SUB BPF
SUB DEEM
SUB
DEMOD
COMP
REGULA
T
O
R
MODE
952Hz
BPF
AM
DEMOD
SIF
MA
TRIX
SW
LCH
RCH
AMP(10dB)
SLA
VE
ADDRESS
=
1000
000*B
(16PIN
:
OPEN)
SLA
VE
ADDRESS
=
1000
010*B
(16PIN
:
H)
SLA
VE
ADDRESS
=
1010
000*B
(16PIN
:
L)
+
AUDIO
ANAL
YZER
+
OSCILLO SCOPE
SG
SIF_INPUT
+
SG
DC
VOL
T
METER