Methods and apparatus for a programmable frequency generator that requires no dedicated programming pins

摘要: A programmable crystal oscillator that generates a wide range of possible frequencies with high stability is disclosed. The clock includes an industry standard package, storage, and phase lock loop (PLL) circuit coupled to the storage. package does not contain any dedicated programming connections. contained within stores parameters representing desired output frequency for oscillator. enclosed provides source frequency. PLL circuit, also in receives frequency, produces frequencies, based on parameters.