The music alarm clock from SCM system is the smallest system and the expansion of LED display circuit and voice circuit .
该音乐闹钟系统是由单片机最小系统及扩展LED显示电路和语音电路组成。
Bit synchronous clock recover circuit is the key part of the communication system, it can exactly recover the synchronous signal from input data stream.
位同步时钟信号的提取是通信系统中的关键部分，应用数字锁相环可以准确地从输入码流中提取出位同步信号。
Bit synchronous clock recover circuit is the key part of the communication system, it can exactly recover the synchronous signal from input data stream.
位同步时钟信号的提取是通信系统中的关键部分，应用数字锁相环可以准确地从输入码流中提取出位同步信号。
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