
25
STR-KS500
IC1602
PCM1803DBR
DELTA-SIGMA
MODULATOR
DELTA-SIGMA
MODULATOR
VINL 1
VINR 2
VREF1 3
VREF2 4
VCC
AGND
5
6
BYPAS 8
TEST 9
LRCK 10
REFERENCE
×
1/64,
×
1/128
DECIMATION
FILTER
WITH
HIGH-PASS
FILTER
SERIAL
INTERFACE
&
MODE/FORMAT
CONTROL
MODE1
20
MODE0
19
FMT1
18
FMT0
17
OSR
16
SCKI
15
VDD
14
DGND
13
DOUT
12
BCK
11
CLOCK & TIMING CONTROL
POWER
SUPPLY
PDWN 7
– MAIN Board –
IC401
M61542FP
1
55
53
56
54
16
17
11
12
15
13
19
18
20 21 22 23 24
25 26 27 28
5 INPUT SELCTOR
45
29
30
32
31
VOLUME
14
INPUT ATT
(FOR ADC)
INPUT ATT
(FOR ADC)
36
35
33
34
VOLUME
37
38
40
39
VOLUME
GND
SRC
SLOUT
SLC
SLVIN
SLIGO
CIGO
CVIN
CVC
COUT
SWOUT
SWC
SWVIN
SWIGO
SLOUT
RECR2
RECR1
RECL1
LIGO
LVIN
LV
C
LOUT
ROUT
RVC
RVIN
RIGO
SRIGO
SRVIN
RECL2
INR1
ADIFL
ADIFR
GND
LIN
RIN
SLIN
SRIN
CIN
SWIN
GND
GND
D
ATA
CLOCK
DVDD
A
VCC
GND
AVEE
44 43
41
42
VOLUME
52 51
49
50
VOLUME
46
48 47
VOLUME
MCU I/F
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299