[AK4128A]
No.
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
Pin Name
CM2
CM1
CM0
ODIF1
ODIF0
SDTO3
SDTO2
SDTO1
SDTO4
VSS4
DVDD3
OBICK
OLRCK
OMCLK/XTI
XTO
MCKO
TST0
CAD0
DVDD4
VSS5
TST1
SMSEMI
TST2
SCL
I/O
I
I
I
I
I
O
O
O
O
-
-
I/ O
I/ O
I
O
O
I
I
-
-
I
I
I
I
58
SDA
I/ O
59
SPB
I
Function
Clock Select or Mode Select #2 Pin for Output PORT
Clock Select or Mode Select #1 Pin for Output PORT
Clock Select or Mode Select #0 Pin for Output PORT
Audio Interface Format #1 Pin for Output PORT
Audio Interface Format #0 Pin for Output PORT
Audio Serial Data Output #3 Pin for Output PORT
When the PDN pin = “L”, the SDRO3 pin outputs “L”.
Audio Serial Data Output #2 Pin for Output PORT
When the PDN pin = “L”, the SDTO2 pin outputs “L”.
Audio Serial Data Output #1 Pin for Output PORT
When the PDN pin = “L”, the SDTO1 pin outputs “L”.
Audio Serial Data Output #4 Pin for Output PORT
When the PDN pin = “L”, the SDRO4 pin outputs “L”.
Digital Ground Pin
Digital Power Supply Pin, 3.0
∼
3.6V
Audio Serial Data Clock Pin for Output PORT
When the PDN pin = “L” in master mode, the OBOCK pin outputs “L”.
Output Channel Clock Pin for Output PORT
When the PDN pin = “L” in master mode, the OBOCK pin outputs “L”.
External Master Clock Input / X’tal Input Pin
X’tal Output Pin
When the PDN pin = “L”, XTO outputs Hi-z.
Master Clock Output Pin
When the PM2 pin = “H” and PDN pin = “L”, the MCKO pin outputs “L”.
When the PM2 pin = “L” and PDN pin = “L”, the MCKO pin outputs Hi-z.
Test Pin. This pin should be connected to VSS2-5.
Chip Address 0 pin
This pin must be connected to VSS2-5 in parallel control mode (SPB pin = “L”).
Digital Power Supply Pin, 3.0
∼
3.6V
Digital Ground Pin
Test Pin. This pin should be connected to VSS2-5.
Soft Mute Semi-auto Mode Setting Pin
“H”: Semi-auto, “L”: Manual Mode
Test Pin. This pin should be connected to VSS2-5.
I
2
C Control Data Clock Pin, (when the SPB pin= “H”)
Since there is a protection diode between this pin and DVDD1-4, connect
pulled-up resister to DVDD1-4 + 0.3V or less. This pin must be connected to the
VSS2-5 in parallel control mode (PSB pin= “L”).
I
2
C Control Data In/Out put Pin, (when the SPB pin= “H”)
Since there is a protection diode between this pin and DVDD1-4, connect
pulled-up resister to DVDD1-4 + 0.3V or less. This pin must be connected to the
VSS2-5 in parallel control mode (PSB pin= “L”).
Parallel/Serial Control Mode Select Pin
“H”: Serial Control Mode, “L”: Parallel Control Mode
MS1242-E-00
-7-
2010/09
AKM [ ASAHI KASEI MICROSYSTEMS ]
