Atmel AT86RF233单片2.4GHz无线收发解决方案

Atmel 公司的AT86RF233是富有特性极低功耗的单片2.4GHz无线收发器,接收器灵敏度-101dBm,可编程输出功率从-17dBm到+40dBm,工作电压1.8V-3.6V,深度睡眠的功耗为0.02uA,主要用于 2.4GHz IEEE 802.15.4和ZigBee系统,RF4CE系统,能量收获系统,6LoWPAN系统,工业控制,住宅区和商业自动化,医疗保健,消费类电子和PC外设等.本文介绍了AT86RF233主要特性,方框图,基本和扩展特性应用电路,以及评估板REB233SMAD主要特性,框图,电路图,材料清单和PCB元件布局图.
The Atmel AT86RF233 is a feature rich, extremely low-power 2.4GHz radio transceiver designed for industrial and consumer ZigBee/IEEE 802.15.4, RF4CE, 6LoWPAN, and high data rate 2.4GHz ISM band applications. The radio transceiver is a true SPI-to-antenna solution. All RF-critical components except the antenna, crystal and de-coupling capacitors are integrated on-chip. MAC and AES hardware accelerators improve overall system power efficiency and timing. Therefore, the AT86RF233 is particularly suitable for applications like:
 2.4GHz IEEE 802.15.4 and ZigBee systems
 RF4CE systems
 Energy Harvesting systems
 6LoWPAN systems
 Wireless sensor networks
 Industrial Control
 Residential and commercial automation
 Health care
 Consumer electronics
 PC peripherals
The Atmel AT86RF233 single-chip radio transceiver provides a complete radio transceiver interface between an antenna and a microcontroller. It comprises the analog radio, digital modulation and demodulation including time and frequency synchronization and data buffering. The number of external components is minimized such that only the antenna, the crystal and decoupling capacitors are required. The bidirectional differential antenna pins (RFP, RFN) are used for transmission and reception, thus no external antenna switch is needed.
The received RF signal at pin 5 (RFN) and pin 6 (RFP) is differentially fed through the low-noise amplifier (LNA) to the RF filter (PPF) to generate a...