55
1
2
3
4
5
6
7
8
9
VREFH
AINR+
AINR-
AINL+
AINL-
VA
AGND
NC
NC
DIF0
DIF1
LRCK
SCLK
SDTI
10
11
12
13
14
VCOM
28
DGND
23
PD
24
CMODE
25
VD
22
NC
21
NC
20
MCKI
19
DEM1
18
DEM0
17
SMUTE
16
SDTO
15
HPF
LPF
∆Σ
MODULATOR
∆Σ
MODULATOR
DECIMATION
FILTER
8x
INTERPOLATOR
∆Σ
MODULATOR
8x
INTERPOLATOR
HPF
SERIAL I/O
INTERFACE
∆Σ
MODULATOR
DECIMATION
FILTER
CLOCK
DIVIDER
AOUTR
27
AOUTL
26
LPF
COMMON VOLTAGE
IC300 AK4523VF-E2
REGISTER
PEAK
HOLD
68Hz
B.P.F.
REGISTER
PEAK
HOLD
170Hz
B.P.F.
REGISTER
PEAK
HOLD
420Hz
B.P.F.
REGISTER
PEAK
HOLD
1kHz
B.P.F.
REGISTER
PEAK
HOLD
2.4kHz
B.P.F.
REGISTER
PEAK
HOLD
5.9kHz
B.P.F.
REGISTER
PEAK
HOLD
14.4kHz
B.P.F.
DIFFERENTIAL
AMPLIFIER
MULTIPLEXER
1
2 3 4
5
6
7 8
9
BIASC
VREFC
RREF
NC
D
IFOUT
NC
CIN
AIN
VCC
DECODER
10
11
12
13
14
15
16
17
18
A
B
C
NC
SEL
NC
TEST
AOU
T
GND
IC652 BA3834F
Содержание MDX-C800REC
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