[AK4954A]
MS1542-J-00 2013/06
- 6 -
ピン/機能
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 Pin for Microphone 2
5 MPWR1 O MIC Power Supply Pin for Microphone 1
RIN1 I Rch Analog Input 1 Pin (DMIC bit = “0”: default)
6
DMCLK O Digital Microphone Clock pin (DMIC bit = “1”)
LIN1 I Lch Analog Input 1 Pin (DMIC bit = “0”: default)
7
DMDAT I Digital Microphone Data Input Pin (DMIC bit = “1”)
8 PDN I
Power-down & Reset
When “L”, the AK4954A is in power-down mode and is held in reset.
The AK4954A must be always reset upon power-up.
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
MCKI I External Master Clock Input Pin (OVFL bit = “0”: default)
15
OVF O Over Flow Flag Output Pin (OVFL bit = “1”)
16 TVDD - Digital I/O Power Supply Pin, 1.6 ~ 3.5V
17 VSS3 - Ground 3 Pin
18 SVDD - Speaker-Amp Power Supply Pin, 0.9 ~ 5.5V
SPN O Speaker-Amp Negative Output Pin (LOSEL bit = “0”: default)
19
ROUT O Rch Stereo Line Output Pin (LOSEL bit = “1”)
SPP O Speaker-Amp Positive Output Pin (LOSEL bit = “0”: default)
20
LOUT O Lch Stereo Line Output Pin (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 2.2F±50% 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 2.2F±50% capacitor in series.
27 CN I
Negative Charge-Pump Capacitor Terminal Pin
This pin must be connected to CP pin with 2.2F±50% capacitor in series.
27 AVDD - Analog Power Supply Pin, 2.5 ~ 3.5V
29 VSS1 - Ground 1 Pin
30 VCOM O
Common Voltage Output Pin
Bias voltage of ADC inputs and DAC outputs.
This pin must be connected to VSS1 with 2.2F±50% capacitor in series.
31 MRF O
MIC Power Supply Ripple Filter Pin
This pin must be connected to VSS1 with 2.2F±50% capacitor in series.
32 RIN3 I Rch Analog Input 3 Pin
Note 2. アナログ入力ピン (LIN1, RIN1, LIN2, RIN2, LIN3, RIN3)以外のすべての入力ピンはフローティングに
してはいけません。