NXP OL2385全集成单片RF收发器解决方案
NXP公司的OL2385是用于工业环境的全集成单片RF收发器,包括稳定的晶振,分数N锁相环(PLL),低噪音放大器(LNA),用于自动增益控制(AGC)的衰减器,I/Q下混合器和两个高分辨率10位ADC.工作频率160 MHz - 960 MHz,工作速率高达400 kbit/s 4FSK,主要用在智能计量,家庭和建筑物安全和自动化(KNX-RF),遥控,无线医疗,无线传感器网络,工业监视和控制以及低功耗宽域网(SigFox).本文介绍了OL2385主要特性和优势,框图以及OM2385/FS001开发板主要特性,框图,参考设计板和屏蔽板电路图.
The device incorporates several commonly used building blocks including a crystalstabilized oscillator, a fractional-N based Phase Locked Loop (PLL) for accuratefrequency selection in both TX and RX, Low Noise Amplifier (LNA), attenuator forAutomatic Gain Control (AGC), I/Q down-mixer and two high resolution Analog to Digital
Converters (ADC).The conversion into the digital domain is done in an early phase,enabling a software defined radio like approach.By transforming signals in the digital domain in an early phase, one highly configurable RX channel is available including channel mixer, channel filter, ASK/FSK demodulator,clock-data recovery, bit processor and a micro-controller memory interface (DMA)allowing the micro-controller to complete the data handling and handshaking.
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