MC145170D

The MC145170D is a PLL frequency synthesizer from ON Semiconductor used to generate and control stable frequencies in communication and RF systems. By combining phase detection and control circuitry, it allows designers to create phase-locked loops that lock onto precise reference signals and maintain consistent output frequencies. This capability is essential in radios, transmitters, receivers, and test equipment where accuracy and stability directly affect performance. The device simplifies synthesizer design by reducing the number of external components required while offering predictable loop behaviour. Engineers can tailor loop filters and reference clocks to meet specific lock-time and noise requirements. Florida Circuit supplies authentic MC145170D parts with traceable sourcing to support both repairs and new production runs. Choose this synthesizer when you need reliable, repeatable frequency control in compact RF or IF applications where dependable operation matters most.