摘要
CC4046集成电路锁相环采用RC型压控振荡器,外接RC作为充放电元件,电路简单、成本低廉、实用价值大,可广泛应用于广播电视系统,各种通信系统,以及频率合成,自动控制及时钟同步等技术领域。利用数字集成锁相环组成温控变频电路可以克服常见温控系统可靠性低、抗干扰能力差的缺点,为温度的精确测量及需要进行温度检测控制的设备提供了一种可行的电路设计方案。
The CC4046 integrated circuit phase locked loop with the exterior conjunction RCas component of Charge and discharge uses the RC VCO(Voltage Controlled Oscillator).It is widely used in the broadcast television system,various communications systen,frequency synthesis system,automatic control and clock synchronization systen because of its simple electric circuit,the imexpensive cost,and large pratical value.It can overcome the shortcomings such as low reliability and bad anti-interference to constitute tempe...
关键词
数字锁相环
相位同步
温度控制
频率变换
digital phase locked loop
phase modulating synchronization
temperature control
frequency conversion
