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Support : AIRcable SMD : Terminal Description
SMD Terminal Description
| 1 |
PIO(0) |
I/O |
3.3V TTL |
general purpose input or output pin defined by the BASIC program |
| 2 |
LED(0) |
O |
Supply |
Charger LED, current sink, 4.2V tolerant |
| 3 |
VREG_EN |
I |
Supply |
>2.2V enables the voltage regulator |
| 4 |
VBATT |
I/O |
Supply |
LiIon or LiPol battery, positive terminal |
| 5 |
AIO(0) |
I |
Analog |
Analog input 0-1.8V |
| 6 |
AIO(1) |
I |
Analog |
Analog input 0-1.8V |
| 7 |
RESET |
I |
3.3V TTL |
Active high reset |
| 8 |
MISO |
I |
3.3V TTL |
SPI firmware programming |
| 9 |
CSB |
I |
3.3V TTL |
SPI firmware programming |
| 10 |
CLK |
I |
3.3V TTL |
SPI firmware programming |
| 11 |
MOSI |
O |
3.3V TTL |
SPI firmware programming |
| 12 |
CTS |
I |
3.3V TTL |
Uart clear to send |
| 13 |
TX |
O |
3.3V TTL |
Uart async serial output |
| 14 |
RTS |
O |
3.3V TTL |
Uart request to send |
| 15 |
RX |
I |
3.3V TTL |
Uart async serial input |
| 16 |
1V8 |
O |
Supply |
Supply 1.8V power supply output |
| 17 |
VIN |
I |
Supply |
Supply Battery charger input, 4.5V – 5.75V |
| 18 |
GND |
|
Supply |
Ground |
| 19 |
MIC_P |
I |
Analog |
Microphone input plus |
| 20 |
MIC_N |
I |
Analog |
Microphone input minus |
| 21 |
SPKR_P |
O |
Analog |
Speaker output plus |
| 22 |
SPKR_N |
O |
Analog |
Speaker output minus |
| 23 |
USB_DP |
I/O |
3.3V TTL |
USB data plus |
| 24 |
USB_DN |
I/O |
3.3V TTL |
USB data minus |
| 25 |
SDA |
I/O |
3.3V TTL |
I2C master data |
| 26 |
SCL |
O |
3.3V TTL |
I2C master clock |
| 27 |
SEC |
I |
3.3V TTL |
Security overwrite |
| 28 |
PIO(4) |
I/O |
3.3V TTL |
general purpose input or output pin defined by the BASIC program |
| 29 |
PIO(3) |
I/O |
3.3V TTL |
general purpose input or output pin defined by the BASIC program |
| 30 |
PIO(2) |
I/O |
3.3V TTL |
general purpose input or output pin defined by the BASIC program |
| 31 |
PIO(1) |
I/O |
3.3V TTL |
general purpose input or output pin defined by the BASIC program |
| 32 |
PIO(0) |
I/O |
3.3V TTL |
general purpose input or output pin defined by the BASIC program |
| 33 |
PIO(8) |
I/O |
3.3V TTL |
general purpose input or output pin defined by the BASIC program |
| 34 |
LED(1) |
O |
Supply |
LED output, current sink, 4.2V tolerant |
| 35 |
GND |
|
Supply |
Ground |
| 36 |
PIO(9) |
I/O |
3.3V TTL |
general purpose input or output pin defined by the BASIC program |
RF Port Description
For versions of the AIRcable SMD without antenna, only use the antenna port with a 50 Ohm trace to an external antenna. The other ports are designed for use with an external power amplifier. Contact Wireless Cables Inc. for these version.
| 37 |
GND |
|
Supply |
Ground |
| 38 |
RF_IN |
I |
Analog |
RF input, for class 1
|
| 39 |
GND |
|
Supply |
Ground |
| 40 |
ANT |
I/O |
Analog |
RF antenna connector |
| 41 |
GND |
|
Supply |
Ground |
| 42 |
AUX_DAC |
O |
Analog |
PA gain control, for class 1 |
| 43 |
GND |
|
Supply |
Ground |
www.aircables.net/support-smd-terminal-desc.html
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