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NX-HD10
AK4552VT-X (IC904) : ADC / DAC
1. Pin layout
RIN 1
LIN 2
VSS 3
VA 4
VD 5
DEM0 6
DEM1 7
STDO 8
3. Block diagram
VA
VSS
LIN
Modulator
RIN
Modulator
Common Voltage
VCOM
LOUT
LPF
ROUT
LPF
1-36
2. Pin function
PIN No.
16 ROUT
1
15 LOUT
2
14 VCOM
3
13 PDN
4
12 BCLK
5
11 MCLK
6
10 LRCK
7
8
9 SDTI
9
10
11
12
13
14
15
16
VD
Decimation
filter
Decimation
filter
8x
Interpolator
Modulator
8x
Modulator
Interpolator
Symbol
I/O
Function
RIN
I
Rch analog input terminal
LIN
I
Lch analog input terminal
VSS
-
Ground terminal
VA
-
Analog power terminal
VD
-
Digital power terminal
DEM0
I
De Emphasis control terminal
DEM1
I
De Emphasis control terminal
SDTO
O
Audio serial data output terminal
SDTI
I
Audio serial data input terminal
LRCK
I
L/R channel clock terminal
MCLK
I
Master clock input terminal
BCLK
I
Audio serial data clock terminal
PDN
I
ADC & DAC power down & reset mode terminal
VCOM
O
Common voltage output terminal 0.45xVA
LOUT
O
Lch analog output terminal
ROUT
O
Rch analog output terminal
Clock
MCLK
Divider
LRCK
BCLK
SDTO
Serial I/O
Interface
SDTI
DEM0
DEM1
PDN
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