TW283281B - Frequency phase comparator - Google Patents

Frequency phase comparator

Info

Publication number
TW283281B
TW283281B TW84109204A TW84109204A TW283281B TW 283281 B TW283281 B TW 283281B TW 84109204 A TW84109204 A TW 84109204A TW 84109204 A TW84109204 A TW 84109204A TW 283281 B TW283281 B TW 283281B
Authority
TW
Taiwan
Prior art keywords
flip
flop
output
delay
phase comparator
Prior art date
Application number
TW84109204A
Other languages
Chinese (zh)
Inventor
Akio Fujikawa
Original Assignee
Rohm 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 Rohm Co Ltd filed Critical Rohm Co Ltd
Application granted granted Critical
Publication of TW283281B publication Critical patent/TW283281B/en

Links

Landscapes

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

Abstract

A frequency phase comparator comprises: first flip-flop with reset terminal to receive the first cycle signal on clock terminal; first delay mechanism to delay the first flip-flop output withpredetermined time t1; second flip-flop with reset terminal to receive the second cycle signal on clock terminal; second delay mechanism to delay the second flip-flop output withpredetermined time t2; logical circuit to perform logical operation between output of the second delay mechanism and the above first delay mechanism; synthesis mechanism to synthesize output of the above first flip-flop and output of the second flip-flop; linking output of the above logical circuit on individual reset terminal of the above first flip-flop and the above second flip-flop.
TW84109204A 1994-07-28 1995-09-02 Frequency phase comparator TW283281B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17647094A JP3479559B2 (en) 1994-07-28 1994-07-28 Frequency phase comparator

Publications (1)

Publication Number Publication Date
TW283281B true TW283281B (en) 1996-08-11

Family

ID=16014246

Family Applications (1)

Application Number Title Priority Date Filing Date
TW84109204A TW283281B (en) 1994-07-28 1995-09-02 Frequency phase comparator

Country Status (2)

Country Link
JP (1) JP3479559B2 (en)
TW (1) TW283281B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1326327C (en) * 2003-05-12 2007-07-11 瑞昱半导体股份有限公司 Phase frequency detecting circuit for phaselocked loop circuit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100390269B1 (en) * 2001-03-14 2003-07-04 주식회사 케이이씨 Phase Frequency Detector
KR100940622B1 (en) * 2007-06-25 2010-02-05 주식회사 동부하이텍 Frequency Synthesizer
JP5494443B2 (en) * 2010-11-30 2014-05-14 アイコム株式会社 Phase comparator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1326327C (en) * 2003-05-12 2007-07-11 瑞昱半导体股份有限公司 Phase frequency detecting circuit for phaselocked loop circuit

Also Published As

Publication number Publication date
JP3479559B2 (en) 2003-12-15
JPH0846498A (en) 1996-02-16

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees