摘要
为无线随动控制系统的数据传输所设计的无线数据收发系统,采用ARM LPC2148和nRF905构成,工作在433MHz的ISM频段,最远传输距离可达1000m,数据速率为50Kb/s,工作电压为3.3V,在发射功率为-10dBm时,电流消耗为11mA,低功耗模式时电流消耗仅为42μA。系统采用DSS+PLL频率合成技术和GMSK调制,信道数最多可达170个,能够满足需要多信道工作的特殊场合使用。
The wireless data transceiver system designed for the wireless servo-control data transceiver system consists of ARM LPC2148 and nRF905,works in ISM band at 433MHz,and achievs the farthest transmission distance up to 1 000m and the data transfer rate of 50Kb/s.The key specifications of the system：operating voltage of 3.3V;current consumption of 11mA at launch power of-10dBm,and 42μA in low-power mode.The DSS＋PLL frequency synthesis technology and GMSK modulation are adopted by the system,which satisfies the requirements of working in the special occasions which need multiple channels since its channels can be up to 170.
出处
《现代电子技术》
2010年第15期82-84,共3页
Modern Electronics Technique
