在数字式频率合成器锁相环中,目前广泛采用了脉冲取样保持鉴相器。这种鉴相器对于正弦鉴相器来说,它的主要优点为:1.线性范围大正弦鉴相的线性范围为60°,而三角波脉冲取样保持鉴相为180°,锯龄波脉冲取样保持鉴相超过180°,锯齿波脉冲顶点取样保持鉴相则可接近360°。线性范围大,能够展宽环路的捕捉带和缩小捕捉时间。据资料介绍,360°鉴相此180°鉴 In the digital frequency synthesizer PLL, the pulse sampling and holding phase detector is widely used at present. The phase detector for sinusoidal phase detector, its main advantages are: 1. Linear range of large sinusoidal phase detection linear range of 60 °, while the triangular wave sampling phase to maintain phase identification 180 °, sawing age pulse sampling Maintaining the phase discrimination over 180 °, the sampling and maintaining phase of the sawtooth pulse apex can approach 360 °. Large linear range, can widen the capture loop of the loop and reduce the capture time. According to the introduction of information, 360 ° Kam phase 180 ° Kam Kam