AK4953A Datasheet, PDF (5/96 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4953A]
PIN/FUNCTION
No. Pin Name
I/O Function
1 MPWR1
O MIC Power Supply Pin for Microphone 1
2 ^LIN1
DMDAT
I Lch Analog Input 1 Pin
I Digital Microphone Data Input Pin
(DMIC bit = “0”)
(DMIC bit = “1”)
3 ^RIN1
DMCLK
I Rch Analog Input 1 Pin
O Digital Microphone Clock pin
(DMIC bit = “0”)
(DMIC bit = “1”)
Power-down & Reset
4 PDN
I
When “L”, the AK4953A is in power-down mode and is held in reset.
The AK4953A must be always reset upon power-up.
5 ^CSN
SDA
I Chip Select Pin
I/O Control Data Input/Output Pin
(I2C pin = “L”)
(I2C pin = “H”)
6 ^CCLK
SCL
I Control Data Clock Pin
I Control Data Clock Pin
(I2C pin = “L”)
(I2C pin = “H”)
7 ^CDTIO
CAD0
I/O Control Data Input/Output Pin
I Chip Address Select Pin
(I2C pin = “L”)
(I2C pin = “H”)
8 SDTI
I Audio Serial Data Input Pin
9 LRCK
I/O Input/Output Channel Clock Pin
10 BICK
I/O Audio Serial Data Clock Pin
11 SDTO
O Audio Serial Data Output Pin
12 TVDD
- Digital I/O Power Supply Pin, 1.6 ~ 3.5V
13 VSS2
- Ground 2 Pin
14 MCKI
I External Master Clock Input Pin
15 MCKO
16 I2C
O Master Clock Output Pin
I Control Mode Select Pin “H”: I²C Bus, “L”: 3-wire Serial
17 SVDD
- Speaker-Amp Power Supply Pin, 0.9 ~ 5.5V
18 VSS4
- Ground 4 Pin
19 SPN
O Speaker-Amp Negative Output Pin
20 SPP
O Speaker-Amp Positive Output Pin
21 DVDD
- Digital Power Supply Pin, 1.6 ~ 2.0V
22 HPL
O Lch Headphone-Amp Output Pin
23 HPR
O Rch Headphone-Amp Output Pin
24 PVEE
O
Charge-Pump Circuit Negative Voltage Output Pin
This pin must be connected to VSS3 with 2.2μF±50% capacitor in series.
25 VSS3
- Ground 3 Pin
26 CP
O
Positive Charge-Pump Capacitor Terminal Pin
This pin must be connected to CN pin with 2.2μF±50% capacitor in series.
27 CN
I
Negative Charge-Pump Capacitor Terminal Pin
This pin must be connected to CP pin with 2.2μF±50% capacitor in series.
28 AVDD
- Analog Power Supply Pin, 2.85 ~ 3.5V
29 VSS1
- Ground 1 Pin
30 REGFIL
O
Regulator Ripple Filter Pin
This pin must be connected to VSS1 with 2.2μF±50% capacitor in series.
Common Voltage Output Pin
31 VCOM
O
Bias voltage of ADC inputs and DAC outputs.
This pin must be connected to VSS1 with 2.2μF±50% capacitor in series.
32 LIN3
I Lch Analog Input 3 Pin
33 RIN3
I Rch Analog Input 3 Pin
34 LIN2
I Lch Analog Input 2 pin
35 RIN2
I Rch Analog Input 2 Pin
36 MPWR2
O MIC Power Supply Pin for Microphone 2
Note 2. All input pins except analog input pins (LIN1, RIN1, LIN2, RIN2, LIN3, RIN3) must not be left floating.
MS1252-E-00
-5-
2010/10