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MDS-JE770
IC500 AK4524 (MAIN BOARD)
IC440 M54641L (MAIN BOARD)
VCOM
AINR
AINL
2
1
3
VREF
4
TEST
7
XTI
9
XTALE
10
XTO
8
SDTI
14
LRCK
11
BICK
12
SDTO
13
AGND
5
VA
6
A/D
CONVERTER
BLOCK
D/A
CONVERTER
BLOCK
CLOCK
GENERATOR
& DIVIDER
AUDIO
INTERFACE
CONTROLLER
CDTI
15
CIF
18
CLKO
21
AOUTL+
26
AOUTL–
25
DGND
24
VD
23
VT
22
AOUTR+
28
AOUTR–
27
PD
19
M/S
20
CS
17
CCLK
16
CONTROL
REGISTER
INTERFACE
H.P.F.
D-ATT
D-ATT,
S-MUTE
REG
CONTROL
INPUT
AMP.
INPUT
AMP.
1
2
3
4
5
6
7
8
POWER AMP.
POWER AMP.
VCC
OUT1
IN2
VZ
GND
IN1
OUT2
VCC
IC421 M5293L (MAIN BOARD)
2
5
5k
+
–
27k
OVERCURRENT
LIMITTER
OVERHEAT
PROTECTION
REFERENCE
VOLTAGE
GND
ON/OFF
VIN
REFERENCE
VOLTAGE
VOUT
3
4
1