Search - frequency synthesizer radio

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[SCM] wireless-transmitter DL : 0: nRF24.L01是一款新型单片射频收发器件,工作于2.4 GHz～2.5 GHz ISM频段。内置频率合成器、功率放大器、晶体振荡器、调制器等功能模块,并融合了增强型ShockBurst技术，其中输出功率和通信频道可通过程序进行配置。nRF24L01功耗低,在以-6 dBm的功率发射时，工作电流也只有9 mA 接收时，工作电流只有12.3 mA，多种低功率工作模式(掉电模式和空闲模式)使节能设计更方便。 -nRF24.L01 is a new single-chip radio transceiver device operating in the 2.4 GHz ~ 2.5 GHz ISM band. Built-in frequency synthesizer, power amplifier, crystal oscillator, modulator and other functional modules, and integration of the enhanced ShockBurst technology, in which the output power and communication channels can be configured by the program. nRF24L01 low power consumption, in order to-6 dBm launch power, operating current is only 9 mA received, the operating current of only 12.3 mA, a variety of low-power mode (power-down mode and Idle mode) to more convenient energy-saving design .
Date : 2025-12-17 Size : 9kb User : 蔺伟涛
[SCM] radio DL : 0: 调频接收机（FM Radio）一直在人们的生活娱乐中占有非常重要的地位，从老式的晶体管收音机到今天的网络收音机，诸如MP3、智能手机、便携式Video播放器等产品中嵌入FM部分。基于FM Radio的广泛应用，本设计主要研究利用单片机实现接收的智能控制。利用所学的高频知识和单片机知识，通过硬件、软件两方面的设计实现功能。- According to the demand of my design,I utilized the digital frequency Synthesizing technology to form the electric parts of the frequency modulatiom receiver.This receiver owns the functions of tuning and selecting channel,seaching and so on,In my paper,I emphasized on the FM Frequency tuning circuit that consists of the ICs CXA1019S from Sony Corp,the phase locking loop circuit formed by BU2614 PLL frequency synthesizer,MCS51 monolithic processor and the other circuits of keyboards,screen and storage.
Date : 2025-12-17 Size : 34kb User : 吴旺军