1980
DOI: 10.1109/isscc.1980.1156031
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Abstract: PLL-BASED FREQUENCY synthesizer tuning for consumer radios has become fairly common. An alternative method employing the frequency lock principle will be described in this paper.The approach affords stability, lock time and noise performance as virtually independent variables (loop filter parameters, under program control, are adaptively optimized to the tuning process in operation), and no variable modulus dividers are needed.-4 block drawing of the system is shown in Figure 1. The desired frequency is enter…

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