1 |
A1 |
MCLK |
I |
Master Clock Input |
2 |
B2 |
BCLK |
IO |
Audio serial data bus (primary) bit clock |
3 |
B3 |
WCLK |
IO |
Audio serial data bus (primary) word clock |
4 |
A2 |
DIN/MFP1 |
I |
Primary function |
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|
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Audio serial data bus data input |
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|
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Secondary function |
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|
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Digital Microphone Input
General Purpose Input |
5 |
A3 |
DOUT/MFP2 |
O |
Primary |
|
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|
|
|
Audio serial data bus data output |
|
|
|
|
Secondary |
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|
|
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General Purpose Output
Clock Output
INT1 Output
INT2 Output
Audio serial data bus (secondary) bit clock output
Audio serial data bus (secondary) word clock output |
6 |
A5 |
DMDIN/
MFP3/ |
I |
Primary (SPI_Select = 1) |
|
|
|
|
SPI serial clock |
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|
|
Secondary: (SPI_Select = 0) |
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Digital microphone input
Headset detect input
Audio serial data bus (secondary) bit clock input
Audio serial data bus (secondary) DAC/common word clock input
Audio serial data bus (secondary) ADC word clock input
Audio serial data bus (secondary) data input
General Purpose Input |
7 |
A4 |
SCL/
SS |
I |
Multi-function digital input.
For (SPI_SELECT=0): Clock Pin for I2C control bus.
For (SPI_SELECT = 1): SPI chip selection pin. |
8 |
B4 |
SDA/ MOSI |
I/O |
Multi-function digital pin.
For (SPI_SELECT=0): Data Pin for I2C control bus.
For (SPI_SELECT = 1): SPI data input. |
9 |
B5 |
DMCLK/
MFP4 |
O |
Primary (SPI_Select = 1) |
|
|
|
|
Serial data output |
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|
|
Secondary (SPI_Select = 0) Multifunction pin #4 (MFP4) options are only available using I2C |
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Digital microphone clock output
General purpose output
CLKOUT output
INT1 output
INT2 output
Audio serial data bus (primary) ADC word clock output
Audio serial data bus (secondary) data output
Audio serial data bus (secondary) bit clock output
Audio serial data bus (secondary) word clock output |
10 |
C5 |
HPR |
O |
Right high-power output driver |
11 |
D5 |
LDOin |
Power |
LDO Input supply and Headphone Power supply 1.9V– 3.6V |
12 |
D4 |
HPL |
O |
Left high power output driver |
13 |
D3 |
AVdd |
Power |
Analog voltage supply 1.5V–1.95V
Input when A-LDO disabled,
Filtering output when A-LDO enabled |
14 |
E4 |
AVss |
Ground |
Analog ground supply |
15 |
E5 |
INL |
I |
Left Analog Bypass Input |
16 |
E3 |
INR |
I |
Right Analog Bypass Input |
17 |
E2 |
REF |
O |
Reference voltage output for filtering |
18 |
D2 |
MICBIAS |
O |
Microphone bias voltage output |
19 |
E1 |
SPI_ SELECT |
I |
Control mode select pin ( 1 = SPI, 0 = I2C ) |
20 |
C2 |
RESET |
I |
Reset (active low) |
21 |
D1 |
DVss |
Ground |
Digital Ground and Chip-substrate |
22 |
C1 |
DVdd |
Power |
Digital voltage supply 1.26V–1.95V |
23 |
B1 |
IOVss |
Ground |
I/O ground supply |
24 |
C3 |
IOVdd |
Power |
I/O voltage supply 1.1V – 3.6V |
n/a |
C4 |
GPIO/MFP5 |
I/O |
Primary |
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|
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|
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General Purpose digital IO |
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|
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Secondary |
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CLKOUT Output
INT1 Output
INT2 Output
Audio serial data bus ADC word clock output
Audio serial data bus (secondary) bit clock output
Audio serial data bus (secondary) word clock output
Digital microphone clock output |