[AK4129]
PIN / FUNCTION
No. Pin Name
I/O
I
Function
Audio Serial Data Clock #2 Pin
1
IBICK2
When the INAS pin = “L”, this pin should be connected to VSS2-5.
Master Clock Input Pin for Input PORT
Input Channel Clock #1 Pin
2
3
4
5
6
7
8
9
IMCLK
ILRCK1
IBICK1
DVDD1
VSS2
I
I
I
-
-
I
I
I
I
I
I
I
Audio Serial Data Clock #1 Pin
Digital Power Supply Pin, 3.0 ∼ 3.6V
Digital Ground Pin
TST4
Test Pin. This pin should be connected to VSS2-5.
Audio Serial Data Input #1 Pin
SDTI1
SDTI2
Audio Serial Data Input #2 Pin
Audio Serial Data Input #3 Pin
10 SDTI3
11 IDIF0
12 IDIF1
13 IDIF2
Audio Interface Format #0 Pin for Input PORT (Note 2)
Audio Interface Format #1 Pin for Input PORT (Note 2)
Audio Interface Format #2 Pin for Input PORT (Note 2)
Input Channel Clock #3 Pin
When the INAS pin = “L”, this pin should be connected to VSS2-5.
Audio Serial Data Clock #3 Pin
When the INAS pin = “L”, this pin should be connected to VSS2-5.
Test Pin.
This pin should be connected to VSS2-5.
Test Pin.
14 ILRCK3
15 IBICK3
16 TST5
I
I
I
I
17 TST6
This pin should be connected to VSS2-5.
Asynchronous Mode Select Pin.
18 INAS
I
“L”(connected to the ground): Synchronous mode.
“H”(connected to DVDD1-4) : Asynchronous mode.
Unlock Status Pin
When the PDN pin= “L”, this pin outputs “H”.
Digital Power Supply Pin, 3.0 ∼ 3.6V
Digital Ground Pin
19 UNLOCK
O
20 DVDD2
21 VSS3
-
-
I
I
22 SMUTE
23 DITHER
Soft Mute Pin (Note 3)
Dither Enable Pin
“H” : Soft Mute, “L” : Normal Operation
“H” : Dither ON, “L” : Dither OFF
Power-Down Mode Pin
24 PDN
I
“H”: Power up, “L”: Power down reset and initializes the control register.
The AK4129 should be reset once by bringing PDN pin = “L” upon power-up.
25 SMT0
26 SMT1
27 DEM0
28 DEM1
29 PM1
I
I
I
I
I
I
I
I
Soft Mute Timer Select #0 Pin
Soft Mute Timer Select #1 Pin
De-emphasis Control #0 Pin (Note 4)
De-emphasis Control #1 Pin (Note 4)
Channel Mode Select #1 Pin
30 OBIT0
31 OBIT1
32 PM2
Bit Length Select #0 Pin for Output Data
Bit Length Select #1 Pin for Output Data
Channel Mode Select #2 Pin
TDM Format Select Pin.
33 TDM
I
“L”(connected to the ground): Stereo mode.
“H”(connected to DVDD1-4) : TDM mode.
MS1173-E-01
2010/09
- 6 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
