| GND1 |
A1 |
P |
Analog / digital ground 1 |
| INR |
A2 |
I |
Headphone right channel input |
| INL |
A3 |
I |
Headphone left channel input |
| CPVDD |
A4 |
I |
Headphone charge-pump positive supply (internally generated). Connect a 1-µF capacitor to ground. |
| JACK_SENSE |
A5 |
I/O |
Connect to headset jack terminal 5 (for mechanical switch). If mechanical switch is not available, then this terminal can be kept floating. |
| NC (Floating) |
B1 |
O |
Leave floating (no connection) |
| GND2 |
B2 |
I |
Ground 2 - Connect to ground 1 on board. |
| IRQ |
B3 |
O |
Active low interrupt output |
| MOUTN |
B4 |
O |
Microphone preamplifier negative output |
| TIP |
B5 |
O |
Left headphone / line output. Connect to headset jack TIP (terminal 1). |
| CPVSS |
C1 |
I |
Headphone charge-pump negative supply (internally generated). Connect a 1-µF capacitor to ground. |
| SCL |
C2 |
I |
I2C clock line |
| GND |
C3 |
I |
Connect to ground |
| MOUTP |
C4 |
O |
Microphone preamplifier positive output |
| RING1 |
C5 |
O |
Right headphone / line output. Connect to headset jack RING1 (terminal 2). |
| C1N |
D1 |
P |
Charge pump flying capacitor positive terminal |
| SDA |
D2 |
I/O |
I2C data line |
| PGND |
D3, E2 |
P |
Power ground |
| NC (Floating) |
D4 |
O |
Leave floating (no connection) |
| MICVDD |
D5 |
P |
Analog supply |
| C1P |
E1 |
P |
Charge pump flying capacitor negative terminal |
| VDD |
E3 |
P |
Analog / digital supply |
| RING2 |
E4 |
I/O |
Connect to headset jack RING2 (terminal 3) |
| SLEEVE |
E5 |
I/O |
Connect to headset jack SLEEVE (terminal 4) |