[AK4955]
PIN/FUNCTION
No Pin Name
Power Supply
E2 AVDD
D5 LVDD
F4
E1
E4
F2
B4
B3
F3
A4
E6
F5
F1
VCOM
VSS1
DVDD
TVDD
REGFIL
VSS2
SVDD
VSS3
PVEE
I/O
-
O
-
-
-
-
-
-
-
O
Function
Analog Power Supply Pin, 2.7 ~ 3.6V
Lineout-Amp Power Supply Pin, 2.7 ~ 5.5V
Common Voltage Output Pin
Bias voltage of ADC inputs and DAC outputs.
Ground 1 Pin
Digital Power Supply Pin, 1.6 ~ 2.0V
Digital Interface Supply Pin, DVDD-0.2 ~ 3.6V
LDO Voltage Output pin for Analog Logic (typ 2.3V)
This pin must be connected to VSS1 with 2.2μF ±50% capacitor in series.
Ground 2 Pin
Speaker-Amp Power Supply Pin, 2.7 ~ 5.5V
Ground 3 Pin
Negative Charge Pump Output Pin
Connect to VSS1 with a 2.2μF capacitor which is low ESR (Equivalent Series
Resistance) over all temperature range.
Master Clock Input Pin (Note
1)
Master Clock Output Pin
Channel Clock Pin (Note
1)
Audio Serial Data Clock Pin (Note
1)
Audio Serial Data Input Pin (Note
1)
Audio Serial Data Output Pin
Chip Select Pin
(I2C pin = “L”) (Note
1)
Control Data Input/Output Pin
(I2C pin = “H”) (Note
1)
Control Data Clock Pin
(I2C pin = “L”) (Note
1)
Control Data Clock Pin
(I2C pin = “H”) (Note
1)
Control Data Input/Output Pin
(I2C pin = “L”) (Note
1)
Chip Address Select Pin
(I2C pin = “H”) (Note
1)
2
Control Mode Select Pin “H”: I C Bus, “L”: 3-wire Serial (Note
1)
Audio Interface
A6 MCKI
I
A2 MCKO
O
B5 LRCK
I/O
A5 BICK
I/O
B6 SDTI
I
A3 SDTO
O
Control Register Interface
CSN
I
B1
SDA
I/O
CCLK
I
A1
SCL
I
CDTIO
I/O
B2
CAD0
I
I
D2 I2C
MS1343-E-00
-5-
2011/12
AKM [ ASAHI KASEI MICROSYSTEMS ]
