Transcription of CMOS Phase-Locked-Loop Applications (Rev. B)
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CMOS Phase-Locked-Loop Applications (Rev. B)
Application Report SCHA003B - September 2002. CMOS Phase-Locked-Loop Applications Using the CD54/74HC/HCT4046A and CD54/74HC/HCT7046A. W. M. Austin Standard Linear & Logic ABSTRACT. Applications of the HC/HCT4046A phase- locked loop (PLL) and HC/HCT7046A PLL with lock detection are provided, including design examples with calculated and measured results. Features of these devices relative to phase comparators, lock indicators, voltage-controlled oscillators (VCOs), and filter design are presented. Contents Introduction .. 4. Basic Loop Operation .. 4. Description of the HC/HCT4046A .. 6. Phase Comparators (PCs) .. 8. Operation of Phase Comparator PC1 .. 9. Operation of Phase Comparator PC2 .. 9. Operation of Phase Comparator PC3 (HC/HCT4046A Only) .. 12. Lock Indicators .. 13. PCPout of the HC/HCT4046A .. 13.
SCHA003B CMOS Phase-Locked-Loop Applications Using the CD54/74HC/HCT4046A and CD54/74HC/HCT7046A 3 25 VCO Frequency and Power-Supply Current as a Function of Operating Voltage
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