AK4128A Datasheet, PDF (8/50 Pages) Asahi Kasei Microsystems – 8ch 216kHz / 24-Bit Asynchronous SRC

[AK4128A]
No. Pin Name
I/O
Function
60 AVDD
- 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
61 VD18
O 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.
62 VSS1
- Analog Ground Pin
63 TST3
I
Test Pin.
This pin should be connected to VSS2-5.
64 ILRCK2
Input Channel Clock #2 Pin
I
When INAS pin = “L”, this pin should be connected to VSS2-5.
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 SRC1~4 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, the IDIF[32:30] bits setting is reflected to
SRC3, and the IDIF[42:40] bits setting is reflected to SRC4.
Note 3. In parallel control mode (SPB pin = “L”), the SMUTE pin controls all SRC1~4 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, the SMUTE3 bit setting is reflected to SRC3,
and the SMUTE4 bit setting is reflected to SRC4.
Note 4. In parallel control mode (SPB pin= “L”), DEM1-0 pins control all SRC1~4 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, DEM[31:30] bits setting is reflected to SRC3, and
DEM[41:40] bits setting is reflected to SRC4.
■ Handling of Unused Pins
The unused I/O pins should be processed appropriately as below.
Classification
Digital
Pin Name
IBICK2, IMCLK, SDTI3-4, ILRCK3,
IBICK3, ILRCK4, IBICK4, SMUTE,
DITHER, OMCLK/XTI, ILRCK2,
SDA, SCL, CAD0, TST0-3
UNLOCK, SDTO1-4, MCKO, XTO
Setting
These pins must be connected to VSS2-5.
These pins must be open.
MS1242-E-00
-8-
2010/09