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