[AK4128A]
DVDD1-4
SMSEMI
VSS2-5
DITHER
SMUTE
DEM1
DEM0
IDIF2
IDIF1
IDIF0
SMT1
SMT0
INAS
OLRCK
OBICK
Bypass
SRC1
SMUTE
IBICK1
ILRCK1
SDTI1
Input
Serial
Audio
I/F
DEM
FIR
SRC
SRC
+
0.5 LSB
SDTO1
OBIT1
OBIT2
SRC2
ODIF1
ODIF0
Output
Serial
Audio
I/F
SRC3
SDTO2
Dither
Bypass
IBICK2
ILRCK2
SDTI2
Input
Serial
Audio
I/F
DEM
FIR
SRC
SMUTE
SRC
+
0.5 LSB
Dither
Bypass
IBICK3
ILRCK3
SDTI3
Input
Serial
Audio
I/F
DEM
FIR
SRC
SMUTE
SRC
+
0.5 LSB
SDTO3
Dither
Bypass
SRC4
SMUTE
IBICK4
ILRCK4
SDTI4
IMCLK
PDN
PM1
PM2
Input
Serial
Audio
I/F
DEM
FIR
SRC
SRC
+
0.5 LSB
SDTO4
Dither
Internal
OSC
uP
I/F
X’tal
Osc
Clock
Div
Bypass
UNLOCK
MCKO
SRC
Internal
Regulator
REF
AVDD
VSS1
CAD0
SDA SCL XTO OMCLK/XTI
SPB
CM2 CM1 CM0
VD18
Figure 1. AK4128A Block Diagram (Synchronous mode INAS pin = “L”)
DVDD1-4
SMSEMI
VSS2-5
DITHER
SMUTE
DEM1
DEM0
IDIF2
IDIF1
IDIF0
SMT1
SMT0
INAS
OLRCK
OBICK
Bypass
SRC1
SMUTE
IBICK1
ILRCK1
SDTI1
Input
Serial
Audio
I/F
DEM
FIR
SRC
SRC
+
0.5LSB
SDTO1
OBIT1
OBIT0
SRC2
ODIF1
ODIF0
Output
Serial
Audio
I/F
SRC3
SDTO2
Dither
Bypass
IBICK2
ILRCK2
SDTI2
Input
Serial
Audio
I/F
DEM
FIR
SRC
SMUTE
SRC
+
0.5LSB
Dither
Bypass
IBICK3
ILRCK3
SDTI3
Input
Serial
Audio
I/F
DEM
FIR
SRC
SMUTE
SRC
+
0.5LSB
SDTO3
Dither
Bypass
SRC4
SMUTE
IBICK4
ILRCK4
SDTI4
IMCLK
PDN
PM1
PM2
Input
Serial
Audio
I/F
DEM
FIR
SRC
SRC
+
0.5LSB
SDTO4
Dither
Internal
OSC
uP
I/F
X’tal
Osc
Clock
Div
Bypass
UNLOCK
MCKO
SRC
Internal
Regulator
REF
AVDD
VSS1
CAD0
SDA SCL XTO OMCLK/XTI
SPB
CM2 CM1 CM0
VD18
Figure 2. AK4128A Block Diagram (Asynchronous mode INAS pin = “H”)
MS1242-E-00
-2-
2010/09
AKM [ ASAHI KASEI MICROSYSTEMS ]
