[AK4129]
No. Pin Name
34 CM2
I/O
Function
I
I
I
I
I
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”.
Test Pin. This pin should be open.
35 CM1
36 CM0
37 ODIF1
38 ODIF0
39 SDTO3
40 SDTO2
41 SDTO1
O
O
O
42 TST7
43 VSS4
44 DVDD3
O
-
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
45 OBICK
I/ O
46 OLRCK
47 OMCLK/XTI
48 XTO
I/ O
I
O
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
49 MCKO
O
50 TST0
51 CAD0
I
I
52 DVDD4
53 VSS5
54 TST1
-
-
I
Digital Ground Pin
Test Pin. This pin should be connected to VSS2-5.
Soft Mute Semi-auto Mode Setting Pin
55 SMSEMI
56 TST2
I
I
“H”: Semi-auto, “L”: Manual Mode
Test Pin. This pin should be connected to VSS2-5.
I2C 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”).
57 SCL
I
I2C 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”).
58 SDA
59 SPB
I/ O
I
Parallel/Serial Control Mode Select Pin
“H”: Serial Control Mode, “L”: Parallel Control Mode
MS1173-E-01
2010/09
- 7 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
