JPS5564429A - Digital phase comparator - Google Patents

Digital phase comparator

Info

Publication number
JPS5564429A
JPS5564429A JP13913678A JP13913678A JPS5564429A JP S5564429 A JPS5564429 A JP S5564429A JP 13913678 A JP13913678 A JP 13913678A JP 13913678 A JP13913678 A JP 13913678A JP S5564429 A JPS5564429 A JP S5564429A
Authority
JP
Japan
Prior art keywords
signals
circuits
signal
overtone
couple
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13913678A
Other languages
Japanese (ja)
Inventor
Toshiyuki Ozawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP13913678A priority Critical patent/JPS5564429A/en
Priority to US06/054,974 priority patent/US4281259A/en
Priority to CA331,184A priority patent/CA1130399A/en
Priority to DE7979103838T priority patent/DE2967106D1/en
Priority to EP79103838A priority patent/EP0011128B1/en
Publication of JPS5564429A publication Critical patent/JPS5564429A/en
Pending legal-status Critical Current

Links

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE: To simplify a circuit and also to prevent locking to an overtone by using a couple of delayed flip-flops (D-FF).
CONSTITUTION: Signals A and B applied to 1st and 2nd input terminals 1 and 2 are converted by edge segmentation circuits 3 and 4 into signals C and D, which are supplied to clock terminal CL and reset terminal R of a couple of D-FF circuits 11 and 12. When signal B leads signal A, negative-directional pulse signal H is outputted from output terminal 16 of charge pump circuit 13 and when lagging, on the other hand, negative-directional pulse signal H is generated. Edge segmentation circuits 3 and 4 reduce duty cycles of signals A and B to prevent locking to an overtone.
COPYRIGHT: (C)1980,JPO&Japio
JP13913678A 1978-11-08 1978-11-08 Digital phase comparator Pending JPS5564429A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP13913678A JPS5564429A (en) 1978-11-08 1978-11-08 Digital phase comparator
US06/054,974 US4281259A (en) 1978-11-08 1979-07-05 Digital phase comparing apparatus
CA331,184A CA1130399A (en) 1978-11-08 1979-07-05 Digital phase comparing apparatus
DE7979103838T DE2967106D1 (en) 1978-11-08 1979-10-08 Digital phase comparing apparatus
EP79103838A EP0011128B1 (en) 1978-11-08 1979-10-08 Digital phase comparing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13913678A JPS5564429A (en) 1978-11-08 1978-11-08 Digital phase comparator

Publications (1)

Publication Number Publication Date
JPS5564429A true JPS5564429A (en) 1980-05-15

Family

ID=15238368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13913678A Pending JPS5564429A (en) 1978-11-08 1978-11-08 Digital phase comparator

Country Status (1)

Country Link
JP (1) JPS5564429A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6313516A (en) * 1986-07-04 1988-01-20 Hitachi Ltd Phase comparator
JPS6331624U (en) * 1986-08-15 1988-03-01
JPS63229912A (en) * 1987-03-19 1988-09-26 Fujitsu Ltd Phase comparator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6313516A (en) * 1986-07-04 1988-01-20 Hitachi Ltd Phase comparator
JPS6331624U (en) * 1986-08-15 1988-03-01
JPS63229912A (en) * 1987-03-19 1988-09-26 Fujitsu Ltd Phase comparator

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