AK4955 Datasheet, PDF (5/117 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP/ LDO & DSP

[AK4955]
PIN/FUNCTION
No Pin Name
I/O
Power Supply
E2 AVDD
-
D5 LVDD
F4 VCOM
O
E1
E4 VSS1
-
F2
B4 DVDD
-
B3 TVDD
-
F3 REGFIL
-
A4 VSS2
-
E6 SVDD
-
F5 VSS3
-
F1 PVEE
O
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
B1 ^CSN
I
SDA
I/O
A1 ^CCLK
I
SCL
I
B2 ^CDTIO
I/O
CAD0
I
D2 I2C
I
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)
Control Mode Select Pin “H”: I²C Bus, “L”: 3-wire Serial (Note 1)
MS1343-E-00
-5-
2011/12