[原创] Microchip MRF24XA 2.4GHz RF收发器解决方案

Microchip公司的MRF24XA是IEEE 802.15.4兼容的2.4GHz RF收发器,在单片上集成了PHY和MAC功能,能实现最低成本低功耗高数据速率(125kbps-2Mbps)无线个人局域网(WPAN),可配置的发送功率-17.5 到0 dBm,工作电压1.5V到3.6V,主要用在工业监视和控制,IEEE 1588协议网络,自动读表,家庭自动化,低功耗无线传感器网络,消费类电子,语音和音频.本文介绍了MRF24XA主要特性,无线节点框图,架构框图,应用电路图以及MRF24XA PICtail™/PICtail Plus子板主要特性,电路图,材料清单和PCB设计文件.

MRF24XA is an IEEE 802.15.4™ Standard compliant2.4 GHz RF transceiver with feature extensions.

MRF24XA integrates the PHY and MAC functionality ina single chip solution. MRF24XA implements a lowcost,low-power, high data rate (125 kbps to 2 Mbps)Wireless Personal Area Network (WPAN) device. Allthe data rates have the same spectral shape requiring identical bandwidth. At 125 kbps data rate DirectSequence Spread Spectrum (DSSS) is combined witherror correction and coding for maximum range androbustness against interference. The 2 Mbps data ratecan be used to minimize radio ON-time, therefore extending battery life.

MRF24XA interfaces to many popular Microchip PIC®microcontrollers through a 4-wire serial SPI interface,interrupt, GPIO, and RESET pins.MRF24XA can also handle external Power Amplifier(PA) and Low Noise Amplifier (LNA).
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