AK4685 AKM [Asahi Kasei Microsystems], AK4685 Datasheet - Page 5

• Manufacturer Part Number: AK4685
• Description: Multi-channel CODEC with Differential Analog I/O
• Manufacturer: AKM [Asahi Kasei Microsystems]

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