A7105 2.4G Wireless Transceiver Module


MD7105-SY A7105 2.4G Wireless Transceiver Module

Product Description:

Item Specification Remark
Supply voltage 2.5V~3.6V
Current consumption 1uA (typical)   @Sleep mode

0.3mA (typical) @Idle mode

1.7mA (typical) @Stand-by mode

9mA (typical)    @PLL Mode

16mA (typical)  @Rx mode

20mA (typical)  @Tx mode (Pout = 0dBm)

Frequency 2400 – 2483 MHz ISM band
Transmit output power 0 dBm @ room temperature typical
Rx sensitivity -105 dBm (typical) @ 10Kbps mode, Dev = 40 KHz

-100 dBm (typical) @ 250Kbps mode, Dev = 93 KHz

-96 dBm(typical) @ 500Kbps mode, Dev = 186 KHz

Modulation FSK or GFSK
Transmission distance About 100meter BER≦1E-3
Interface 8pin 2.54 mm header
Dimension 23.3mm(L) x 12.5mm(W) x 5mm(H) Not include the connector
Operating temperature -40 ~ 85 ℃


Pin No. Symbol Function Description Remark
1 GND Ground
2 Vin RF Module Supply Votlage Inpute 2.5V–3.3V
3  NC NO Connection
4 SCS SPI Chip Selection
5 SCK SPI Clock
7 GIO1 General Purpose I/O1
8 GIO2 General Purpose I/O 2

XL7105-SY is made by adopting high performance 2.4G wireless transceiver chip A7105 of Taiwan Shengke (AMIC)
Working in 2400-2483M international opened ISM band
The biggest transmission power is 0 dBm(1 mW )500 KBPS
The highest RX sensitivity is -99 dBm @ 250 KBPS,
The distance is as far as 120M
Built-in ID CODE WORD in IC,support CD (carrier detect), FEC error correction
SPI interface, independent 64 bytes RX and TX FIFO.
Cost performance is higher than NRF24L01 and CC2500

Note: this module needs 3.3V power supply, can use voltage chip to reduce the voltage.

Documentation at wiki