AK4951AEN Datasheet, PDF (8/105 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4951A]
■ PIN/FUNCTION
No. Pin Name I/O Function
1 LIN3
I Lch Analog Input 3 pin
2 RIN2
I Rch Analog Input 2 Pin
3 LIN2
I Lch Analog Input 2 pin
4 MPWR2
O MIC Power Supply 2 Pin
5 MPWR1
O MIC Power Supply 1 Pin
6
RIN1
DMCLK
I Rch Analog Input 1 Pin
O Digital Microphone Clock pin
(DMIC bit = “0”: default)
(DMIC bit = “1”)
7
LIN1
DMDAT
I Lch Analog Input 1 Pin
I Digital Microphone Data Input Pin
(DMIC bit = “0”: default)
(DMIC bit = “1”)
8 PDN
I
Reset & Power-down Pin
“L”: Reset & Power-down, “H”: Normal Operation
9 SCL
I Control Data Clock Pin
10 SDA
I/O Control Data Input/Output Pin
11 SDTI
I Audio Serial Data Input Pin
12 SDTO
O Audio Serial Data Output Pin
13 LRCK
I/O Input/Output Channel Clock Pin
14 BICK
I/O Audio Serial Data Clock Pin
15 MCKI
I External Master Clock Input Pin
16 TVDD
- Digital I/O Power Supply Pin, 1.6 or (DVDD-0.2) ~ 3.5V
17 VSS3
- Ground 3 Pin
18 SVDD
- Speaker-Amp Power Supply Pin, 1.8 ~ 5.5V
19
SPN
ROUT
O Speaker-Amp Negative Output Pin
O Rch Stereo Line Output Pin
(LOSEL bit = “0”: default)
(LOSEL bit = “1”)
20
SPP
LOUT
O Speaker-Amp Positive Output Pin
O Lch Stereo Line Output Pin
(LOSEL bit = “0”: default)
(LOSEL bit = “1”)
21 DVDD
- Digital Power Supply Pin, 1.6 ~ 1.98V
22 HPL
O Lch Headphone-Amp Output Pin
23 HPR
O Rch Headphone-Amp Output Pin
24 VEE
O
Charge-Pump Circuit Negative Voltage Output Pin
This pin must be connected to VSS2 with 2.2μF±20% capacitor in series.
25 VSS2
- Ground 2 Pin
26 CP
O
Positive Charge-Pump Capacitor Terminal Pin
This pin must be connected to CN pin with 2.2μF±20% capacitor in series.
27 CN
I
Negative Charge-Pump Capacitor Terminal Pin
This pin must be connected to CP pin with 2.2μF±20% capacitor in series.
28 AVDD
- Analog Power Supply Pin, 2.8 ~ 3.5V
29 VSS1
- Ground 1 Pin
Common Voltage Output Pin
30 VCOM
O Bias voltage of ADC inputs and DAC outputs.
This pin must be connected to VSS1 with 2.2F±20% capacitor in series.
31 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.
32
RIN3
BEEP
I Rch Analog Input 3 Pin
I Beep Signal Input Pin
(PMBP bit = “0”: default)
(PMBP bit = “1”)
Note 1. All input pins except analog input pins (LIN1, RIN1, LIN2, RIN2, LIN3, RIN3/BEEP) must not be
allowed to float.
016001936-E-00
-8-
2016/03