AK4951EG Datasheet, PDF (11/30 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4951]
[AK4951EG]
No. Pin Name I/O Function
B6 RIN2
I Rch Analog Input 2 Pin
A6 LIN2
I Lch Analog Input 2 pin
B5 MPWR1 O MIC Power Supply 1 Pin
A5 MPWR2 O MIC Power Supply 2 Pin
A4
RIN1
DMCLK
I Rch Analog Input 1 Pin
O Digital Microphone Clock pin
(DMIC bit = “0”: default)
(DMIC bit = “1”)
B4
LIN1
DMDAT
I Lch Analog Input 1 Pin
I Digital Microphone Data Input Pin
(DMIC bit = “0”: default)
(DMIC bit = “1”)
A3 PDN
I
Reset & Power-down Pin
“L”: Reset & Power-down, “H”: Normal Operation
D1 I2C
I
Control Mode Select Pin
“L”: 3-wire Serial, “H”: I²C Bus
B3
CCLK
SCL
I Control Data Clock Pin
I Control Data Clock Pin
(I2C pin = “L”)
(I2C pin = “H”)
E1
CDTIO
CAD0
I/O Control Data Input/Output Pin
I Chip Address Select Pin
(I2C pin = “L”)
(I2C pin = “H”)
A2
CSN
SDA
I Chip Select Pin
I/O Control Data Input/Output Pin
(I2C pin = “L”)
(I2C pin = “H”)
A1 SDTI
I Audio Serial Data Input Pin
B2 SDTO
O Audio Serial Data Output Pin
B1 LRCK
I/O Input/Output Channel Clock Pin
C2 BICK
I/O Audio Serial Data Clock Pin
C1 MCKI
I External Master Clock Input Pin
D2 TVDD
- Digital I/O Power Supply Pin, 1.6 or (DVDD-0.2) ~ 3.5V
F1 VSS3
- Ground 3 Pin
F2
SPN
ROUT
O Speaker-Amp Negative Output Pin
O Rch Stereo Line Output Pin
(LOSEL bit = “0”: default)
(LOSEL bit = “1”)
E2
SPP
LOUT
O Speaker-Amp Positive Output Pin
O Lch Stereo Line Output Pin
(LOSEL bit = “0”: default)
(LOSEL bit = “1”)
E3 DVDD
- Digital Power Supply Pin, 1.6 ~ 1.98V
F3 HPL
O Lch Headphone-Amp Output Pin
F4 HPR
O Rch Headphone-Amp Output Pin
F5 VEE
O
Charge-Pump Circuit Negative Voltage Output Pin
This pin must be connected to VSS2 with 2.2μF±20% capacitor in series.
F6 VSS2
- Ground 2 Pin
E4 CP
O
Positive Charge-Pump Capacitor Terminal Pin
This pin must be connected to CN pin with 2.2μF±20% capacitor in series.
E5 CN
I
Negative Charge-Pump Capacitor Terminal Pin
This pin must be connected to CP pin with 2.2μF±20% capacitor in series.
E6 AVDD
- Analog & Speaker-Amp Power Supply Pin, 2.8 ~ 3.5V
D6 VSS1
- Ground 1 Pin
Common Voltage Output Pin
D5 VCOM
O Bias voltage of ADC inputs and DAC outputs.
This pin must be connected to VSS1 with 2.2μF±20% capacitor in series.
C6 REGFIL
O
LDO Voltage Output pin for Analog Block (typ 2.3V)
This pin must be connected to VSS1 with 2.2μF±20% capacitor in series.
C5
RIN3
BEEP
I Rch Analog Input 3 Pin
I Beep Signal Input Pin
(PMBP bit = “0”: default)
(PMBP bit = “1”)
Note 3. All input pins except analog input pins (LIN1, RIN1, LIN2, RIN2, LIN3, RIN3/BEEP) must not be
allowed to float.
014004561-E-00-PB
- 11 -
2014/08