[AK4685]
PIN/FUNCTION
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
Pin Name
XTO
MCB/XTI
MSB
LRCKC
MCLKC
BICKC
SDTIC
VSS1
DVDD3
SDA
SCL
PDN
MT1N
MT2N
DVDD2
VSS2
SDTIA
BICKA
MCLKA
LRCKA
SGL
AVDD2
VSS3
ROUT+
ROUT-
LOUT+
LOUT-
NC
CP
CN
PVDD
VSS4
PVEE
HPL
HPR
AVDD3
VSS5
RVCOM2
RIN2+
RIN2-
RAMPO2
LAMPO2
I/O
O
I
I
I
I
I
I
-
-
I/O
I
I
I
I
-
-
I
I
I
I
I
-
-
O
O
O
O
-
I
I
-
-
-
O
O
-
-
O
I
I
O
O
Function
X’tal Output Pin
ADC Master Clock Input /X’tal Input Pin
PORTB Master Mode Select Pin.
“L” (connected to the ground): Slave mode.
“H” (connected to DVDD2): Master mode.
DAC2 Input Channel Clock Pin
DAC2 Master Clock Input Pin
DAC2 Audio Serial Data Clock Pin
DAC2 Audio Serial Data Input Pin
DAC2 Digital Ground Pin, 0V
DAC2 Digital Power Supply Pin, 4.75V∼5.25V
Control Data Input/Output Pin
Control Data Clock Pin
Power-Down Mode & Reset Pin
When “L”, the AK4685 is powered-down, all registers are reset. And then all digital
output pins go “L”. The AK4685 must be reset once upon power-up.
DAC1 Mute Pin
“H”: Normal Operation
“L”: Mute
DAC2 Mute Pin
“H”: Normal Operation
“L”: Mute
DAC1 Digital Power Supply Pin, 4.75V∼5.25V
DAC1 Digital Ground Pin, 0V
DAC1 Audio Serial Data Input Pin
DAC1 Audio Serial Data Clock Pin
DAC1 Master Clock Input Pin
DAC1 Input Channel Clock Pin
Analog Output Mode Select Pin.
“L” (connected to the ground): Differential mode.
“H” (connected to DVDD): Single End mode.
DAC1 Analog Power Supply Pin, 4.75V∼5.25V
DAC1 Analog Ground Pin, 0V
Rch Positive Analog Output Pin
Rch Negative Analog Output Pin
Lch Positive Analog Output Pin
Lch Negative Analog Output Pin
No internal bonding. This pin must be connected to Ground.
Positive Charge Pump Capacitor Terminal Pin
Negative Charge Pump Capacitor Terminal Pin
Charge Pump Power Supply Pin, 3.0V ~ 3.6V.
Charge Pump Ground Pin, 0V.
Charge Pump Negative Power Output Pin.
Lch Headphone-Amp Output Pin
Rch Headphone-Amp Output Pin
DAC2 Analog Power Supply Pin, 4.75V∼5.25V
DAC2 Analog Ground Pin, 0V
Rch VCOM Output 2 Pin
Rch Positive Analog Input 2 Pin
Rch Negative Analog Input 2 Pin
Rch Pre-Amp Output 2 Pin
Lch Pre-Amp Output 2 Pin
2009/08
-4-
MS1106-E-00
AKM [ ASAHI KASEI MICROSYSTEMS ]
