User's Manual

X1TXM 2.4GHz DSSS Module User Manual.
Horizon Hobby Inc.,
1657 Country Club Dr.,
Milpitas CA 95035 USA
408 945 9800
1. Features
• 2.4Ghz Direct Sequence Spread Spectrum (DSSS) radio transceiver module.
• Operates in the unlicensed worldwide ISM band (2.4 GHz to 2.483.5GHz) band
• Fully integrated power regulation with a wide input unregulated operating range
2.4 to 3.6V.
• Fully integrated local oscillator and 12MHz 20ppm reference crystal
• 200mA operating current
• Transmit power up to 100mW EIRP
• Receive sensitivity up to -95dBm
• DSSS data rates up to 250kbps
• 1 mile operating range
• Full packet assembling and disassembling
• Auto transaction sequencer
• Fully buffered digital interface with high voltage tolerant inputs
2. Pin description
Pin Number Name Description
1 GND Module Ground
2 VDD Module power input
3 IRQ Interrupt Request
4 RST Reset, active High
5 MOSI Master out, slave In data
6 nSS Slave Select, Active Low
7 SCLK SPI data clock
8 MISO Master in, slave out data
9 GND Module Ground
10 XOUT Clock output from module
11 TXRX Switch antenna to transmit direction
12 RXTX Switch antenna to receive direction