According to the characteristics of asynchronous sequential circuits while clock signal is not synchronized,this paper leads in the commutation of clock variables,leading out the unified state equation of each toggle circuit to reference clock in circuits.
针对异步时序电路时钟信号不同步的特点,引入折算时钟变量,导出了电路中各触发器对基准时钟的统一状态方程,由此状态方程出发并按一定的步骤进行,能使异步时序电路的分析得到简化。
The principle of YH4 BSY s FM-PM demodulator is analyzed deeply in this paper,and the BSY loop clock,matching filtering channel s voltage,bit estimating level,signal level and baseline position which are keys to affect the dynamic characteristic are illustrated in detail.
在深入分析YH4系列码同步器鉴频、鉴相原理的基础上,对影响其动态性能的各个关键环节——码环基准时钟、匹配滤波输出通带电压、码元判决电平、输入信号电平和基线位置的检测和调试方法及工作机理都作了详细的阐述。