PLL circuit apparatus and phase difference detecting circuit app
PLL frequency synthesizer
PLL frequency synthesizer having a main loop and a secondary loo
Plural feedback loop digital frequency synthesizer
Plural phase lock loop signal regeneration circuit
Plural phase locked loop circuit suitable for integrated circuit
Plural phase locked loop frequency synthesizer
Plural phase locked loop frequency synthesizer
Plural phase-lock loops sharing a common frequency control
Programmable multiple oscillator circuit
Provision of local oscillator signals