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接收单元,我们采用的原理和调频收音机原理一样。图3为接收电路,以专用调频接收模块IC1 TDA7021T为核心,经解调后的音频信号从脚输出,送到IC2 LM38...
接收单元,我们采用的原理和调频收音机原理一样。图3为接收电路,以专用调频接收模块IC1 TDA7021T为核心,经解调后的音频信号从脚输出,送到IC2 LM386作功率放大,推动耳机发声。三极管BG9018等组成高频放大级,以提高接收灵敏度。调节可调电容器C23可以改变接收频率,使其对准发射机的发射频率。-Receiving unit, we have adopted the principle and the principle of like FM radio. Figure 3 for the receiver circuit to a dedicated IC1 TDA7021T FM receiver module as the core, after demodulation of the audio signal after the output from the feet, to make IC2 LM386 power amplifier, and promote sound headphones. BG9018 triode composed of high-frequency amplification level in order to improve receiver sensitivity. Conditioning adjustable capacitor C23 can change the receiver frequency so that it fired at the transmitter frequency.
- 2022-07-11 03:12:17下载
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电子地图查询,实现查询的基本功能,精确查找和模糊查找
电子地图查询,实现查询的基本功能,精确查找和模糊查找-E-map queries, to achieve the basic functions of query
- 2022-02-15 10:23:13下载
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simulation windows date
模拟windows 日期-时间-simulation windows date-time
- 2023-04-17 05:50:03下载
- 积分:1
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一个逆波兰式的生成程序
一个逆波兰式的生成程序-an inverse Polish generation procedures
- 2022-03-26 07:13:23下载
- 积分:1
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vc下的系统调用,API函数(字体)
vc下的系统调用,API函数(字体)-vc under the system call API functions (fonts)
- 2022-03-22 08:07:23下载
- 积分:1
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Run only one instance, and activate an instance of the former
程序只运行一个实例,并激活前一个实例 -Run only one instance, and activate an instance of the former
- 2023-03-19 23:40:04下载
- 积分:1
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可以进行 CHIRP
可以进行 CHIRP-Z 的FFT变换(CZT)-can CHIRP-Z FFT transform (CZT)
- 2022-02-01 18:31:53下载
- 积分:1
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一个打印机的程序
一个打印机的程序-a printer procedures
- 2022-04-06 23:41:14下载
- 积分:1
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WinCE下利用COPYDATA消息在进程间发送和接收数据代码实例
1.SendData工程文件
2.ReceiveData工程文件...
WinCE下利用COPYDATA消息在进程间发送和接收数据代码实例
1.SendData工程文件
2.ReceiveData工程文件-WinCE using COPYDATA news in the process of sending and receiving data between code examples 1.SendData project file 2.ReceiveData project file
- 2023-05-21 20:20:03下载
- 积分:1
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在定时关机
浅谈系统的定时关机-On the Mytob.BSNotes
- 2022-04-24 14:24:42下载
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