[AK4685]
43 LIN2-
44 LIN2+
45 LVCOM2
I
I
O
Lch Negative Analog Input 2 Pin
Lch Positive Analog Input 2 Pin
Lch VCOM Output 2 Pin
DAC/ADC Common Voltage Output Pin. AVDD1 x 0.5(typ).
10μF capacitor should be connected to VSS6 externally.
ADC Analog Ground Pin, 0V
46 VCOM
-
47 VSS6
-
-
48 AVDD1
49 RVCOM1
50 RIN1+
51 RIN1-
ADC Analog Power Supply Pin, 4.75V∼5.25V
Rch VCOM Output 1 Pin
O
I
Rch Positive Analog Input 1 Pin
Rch Negative Analog Input 1 Pin
Rch Pre-Amp Output 1 Pin
I
52 RAMPO1
53 LAMPO1
54 LIN1-
O
O
I
Lch Pre-Amp Output 1 Pin
Lch Negative Analog Input 1 Pin
Lch Positive Analog Input 1 Pin
Lch VCOM Output 1 Pin
55 LIN1+
I
56 LVCOM1
57 LRCKB
58 BICKB
O
I/O ADC Channel Clock Pin
I/O ADC Audio Serial Data Clock Pin
59
SDTOB2
O
O
O
ADC Audio Serial Data Output 2 Pin
ADC Audio Serial Data Output 1 Pin
Master Clock Output Pin
60 SDTOB1
61 MCKO
62 TVDD
63
64
-
-
-
Output Buffer Power Supply Pin, 3.0V∼5.25V
ADC Digital Ground Pin, 0V
VSS7
DVDD1
ADC Digital Power Supply Pin, 4.75V∼5.25V
Note 1. All digital input pins must not be left floating.
Note 2. AC coupling capacitors should be connected to analog input pins (LIN1+/-, LIN 2+/-, RIN1+/-, RIN 2+/-).
Note 3. AC coupling capacitors should be connected to analog output pins (LOUT+/-, ROUT+/-).
■ Handling of Unused Pin
The unused I/O pins must be processed appropriately as below.
Classification Pin Name
LOUT+/-, ROUT+/-,
Setting
These pins should be open.
These pins should be connected to each
VCOMO pins (LVCOM1/2,RVCOM1/2)
These pins should be connected to each
AMPO pins (LAMPO1/2,RAMPO1/2)
These pins should be open.
LIN1+, LIN 2+, RIN1+, RIN 2+
LIN1-, LIN 2-, RIN1-, RIN 2-
Analog
SDTOB1, SDTOB2, XTO, MCLKO,
LRCKB(Master), BICKB(Master)
MCLKA/C, MCB, LRCKA-C(Slave),
BICKA-C(Slave), SDTIA,C, MSB, MT1N, MT2N,
SGL
SDA, SCL
NC
These pins should be connected to ground.
Digital
-
These pins should be pulled-up to DVDD3.
This pin should be connected to ground.
MS1106-E-00
2009/08
- 5 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
