WM8960 Module
Pin Definition
| Pin | name | Description |
|---|---|---|
|
1~4 |
VIN |
Power Supply, 3.3V or 5V (ordering options) |
|
5~6 |
NC |
Not connect |
|
7~8 |
DGND |
Ground |
|
9 |
BCLK |
Audio interface bit clock |
|
10 |
MCLK |
Master Clock; Normally, driven by on-board 24Mhz crystal oscillator; You could use another clock (different frequency or precision) to drive it. If this pin is driven by external clock, please bypass the on-board XTAL by taking off a resistor. (Contact technical support for details). |
|
11 |
DACDAT |
Audio DAC data |
|
12 |
DACLRC |
Audio DAC left/right frame clock |
|
13 |
ADCDAT |
Audio ADC data |
|
14 |
ADCLRC |
Audio ADC left/right frame clock or GPIO1;
If it is GPIO1, the ADC use DACLRC as a frame clock. GPIO1 could be configured as multiple function, see datasheet for details.
|
|
15 |
SDA |
I2C data |
|
16 |
SCL |
I2C clock |
Interface
| Pin | name | Description |
|---|---|---|
|
1
|
JP3 |
3.5mm stereo audio input interface |
|
2
|
MIC2/U4 |
Onboard right-channel microphone. Choose one: silicon microphone (U4) or electret microphone (MIC2) |
|
3
|
MIC1/U3 |
Onboard left-channel microphone. Choose one: silicon microphone (U3) or electret microphone (MIC1) |
|
4 |
J8/J10 |
External right-channel microphone. Supports 1.25mm/2.00mm/2.54mm pitch connectors |
|
5 |
J1 |
External left-channel microphone (3.5mm audio interface) |
|
6 |
J7/J9 |
External left-channel microphone. Supports 1.25mm/2.00mm/2.54mm pitch connectors |
|
7 |
JP6 |
Selection jumper for onboard right-channel microphone and external right-channel microphone |
|
8 |
JP4 |
Selection jumper for onboard left-channel microphone and external left-channel microphone |
|
9 |
J2 |
3.5mm audio output/headset microphone combo jack. Supports both OMTP and CTIA headphone standards |
|
10 |
JP4 |
Selection jumper for headset microphone and onboard/external microphone |
|
11 |
JP1/JP2 |
Selection jumper for J2’s headphone standard (OMTP and CTIA) |
|
12 |
J3/J4/J11 |
Left-channel speaker output, provides optional 2.54mm/2.0mm/1.25mm pitch pin headers or a 3.5mm audio output interface (on the back) |
|
13 |
J5/J6/J12 |
Right-channel speaker output, provides optional 2.54mm/2.0mm/1.25mm pitch pin headers or a 3.5mm audio output interface (on the back) |
|
14 |
P2 |
2.54mm pitch interface, corresponding to WM8960’s LINPUT3 pin |
|
15 |
P3 |
2.54mm pitch interface, corresponding to WM8960’s OUT3 pin |
|
16 |
LED1 |
Power indicator LED |
|
17 |
LED2 |
Custom indicator LED, driven by the WM8960’s ADCLRC pin. When ADCLRC is configured as a GPIO, it can be used to verify if the I2C interface is communicating properly |
|
18 |
JP8 |
Input power jumper selection: 5V or 3.3V |
|
19 |
IPX1 |
24MHz clock can be provided externally (need to bypass the onboard 24MHz crystal oscillator) |