[AK4129]
No. Pin Name
60 AVDD
I/O
-
Function
Analog Power Supply Pin, 3.0 ∼ 3.6V
Digital Power Output Pin, Typ 1.8V
When the PDN pin= “L”, the DV18 pin outputs “L”. Current must not be taken from
this pin. A 1μF (±30%; including the temperature characteristics) capacitor should
be connected between this pin and DVSS. When this capacitor is polarized, the
positive polarity pin should be connected to the VD18 pin.
Analog Ground Pin
61 VD18
O
62 VSS1
63 TST3
-
I
Test Pin.
This pin should be connected to VSS2-5.
Input Channel Clock #2 Pin
When INAS pin = “L”, this pin should be connected to VSS2-5.
64 ILRCK2
I
Note: All input pins should not be left floating. DVDD1-4 must be connected to the same power supply.
Note 1. SPB, CM2-0, INAS, PM2-1, OBIT1-0, TDM, ODIF1-0, IDIF2-0 and CAD0 pin must be changed when the PDN
pin= “L”.
Note 2. In parallel control mode (SPB pin = “L”), IDIF2-0 pins control all SRC1~3 audio interface input formats.
In serial control mode (SPB pin = “H”), the setting of IDIF2-0 pins is ignored. The IDIF[12:10] bits setting is
reflected to SRC1, the IDIF[22:20] bits setting is reflected to SRC2 and the IDIF[32:30] bits setting is reflected
to SRC3.
Note 3. In parallel control mode (SPB pin = “L”), the SMUTE pin controls all SRC1~3 soft mute.
In serial control mode (SPB pin = “H”), the SUMUTE pin setting is ignored. The SMUTE1 bit setting is
reflected to SRC1, the SMUTE2 bit setting is reflected to SRC2 and the SMUTE3 bit setting is reflected to
SRC3.
Note 4. In parallel control mode (SPB pin= “L”), DEM1-0 pins control all SRC1~3 de-emphasis settings.
In serial control mode (SPB pin= “H”), setting of DEM1-0 pins is ignored. DEM[11:10] bits setting is reflected
to SRC1, DEM[21:20] bits setting is reflected to SRC2 and DEM[31:30] bits setting is reflected to SRC3.
■ Handling of Unused Pins
The unused I/O pins should be processed appropriately as below.
Classification Pin Name
IBICK2, IMCLK, SDTI3, ILRCK3,
Setting
IBICK3, SMUTE, DITHER,
OMCLK/XTI, ILRCK2, SDA, SCL,
CAD0, TST0-6
These pins must be connected to VSS2-5.
Digital
UNLOCK, SDTO1-3, MCKO, XTO,
TST7
These pins must be open.
MS1173-E-01
2010/09
- 8 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
