
[AK4682] 
MS0610-E-01 
2007/07 
- 4 - 
PIN/FUNCTION 
No. 
1 
2 
3 
4 
5 
6 
Pin Name 
DVSS1 
MCLKB 
TVDD 
LRCKB 
BICKB 
SDTOB 
I/O 
- 
I 
- 
I/O 
I/O 
O 
Function 
ADC Digital Ground Pin, 0V 
ADC Master Clock Input Pin 
Output Buffer Power Supply Pin, 2.7V
~
5.25V 
Channel Clock B Pin 
Audio Serial Data Clock B Pin  
Audio Serial Data Output B Pin  
Power-Down Mode & Reset Pin 
When “L”, the AK4682 is powered-down, all registers are reset. And then all digital 
output pins go “L”. The AK4682 must be reset once upon power-up. 
Input Channel Clock A Pin 
Audio Serial Data Clock A Pin 
DAC Master Clock Input Pin 
Audio Serial Data Input A1 Pin 
Audio Serial Data Input A2 Pin 
Control Data Pin 
Control Data Clock Pin 
DAC Digital Power Supply Pin, 4.75V
~
5.25V 
DAC Digital Ground Pin, 0V  
Lch Analog Output Pin1 
Rch Analog Output Pin1 
PORTB Master Mode Select Pin.  
“L”(connected to the ground): Master/Slave mode. ORed with MSB bit. 
“H”(connected to DVDD2) : Master mode. 
Lch Analog Output Pin2 
Rch Analog Output Pin2 
Output Buffer Power Supply Pin, 8.5V ~ 12.6V. 
Output Buffer Ground Pin, 0V. 
Lch Analog Output Pin 3 
Rch Analog Output Pin 3 
DAC Analog Power Supply Pin, 4.75V
~
5.25V 
DAC Analog Ground Pin, 0V 
Common Voltage Output Pin for Output Buffer. AVDD2 x 0.734(typ). 
10
μ
F capacitor should be connected to AVSS2 externally. 
DAC/ADC Common Voltage Output Pin. AVDD2 x 0.6(typ). 
10
μ
F capacitor should be connected to AVSS2 externally. 
ADC Analog Ground Pin, 0V  
ADC Analog Power Supply Pin, 4.75V
~
5.25V 
Lch Input 1 Pin 
Rch Input 1 Pin 
No Connection.   
No internal bonding. This pin should be connected to the ground. 
Lch Input 2 Pin 
Rch Input 2 Pin 
Lch Input 3 Pin 
Rch Input 3 Pin 
No Connection.   
No internal bonding. This pin should be connected to the ground. 
Lch Input 4 Pin 
Rch Input 4 Pin 
No Connection.   
No internal bonding. This pin should be connected to the ground. 
7 
PDN 
I 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
LRCKA 
BICKA 
MCLKA 
SDTIA1 
SDTIA2 
SDA 
SCL 
DVDD2 
DVSS2 
LOUT1 
ROUT1 
I 
I 
I 
I 
I 
I/O 
I 
- 
- 
O 
O 
19 
MSB 
I 
20 
21 
22 
23 
24 
25 
26 
27 
LOUT2 
ROUT2 
PVDD 
PVSS 
LOUT3 
ROUT3 
AVDD2 
AVSS2 
O 
O 
- 
- 
O 
O 
- 
- 
28 
VCOM36 
- 
29 
VCOM3 
- 
30 
31 
32 
33 
AVSS1 
AVDD1 
LIN1 
RIN1 
- 
- 
I 
I 
34 
NC 
- 
35 
36 
37 
38 
LIN2 
RIN2 
LIN3 
RIN3 
I 
I 
I 
I 
39 
NC 
- 
40 
41 
LIN4 
RIN4 
I 
I 
42 
NC 
-