JPS6427336A - Phase comparator circuit - Google Patents

Phase comparator circuit

Info

Publication number
JPS6427336A
JPS6427336A JP62182233A JP18223387A JPS6427336A JP S6427336 A JPS6427336 A JP S6427336A JP 62182233 A JP62182233 A JP 62182233A JP 18223387 A JP18223387 A JP 18223387A JP S6427336 A JPS6427336 A JP S6427336A
Authority
JP
Japan
Prior art keywords
circuit
fed
reference signal
signal
coincidence
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
JP62182233A
Other languages
Japanese (ja)
Inventor
Shinya Fukuoka
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP62182233A priority Critical patent/JPS6427336A/en
Publication of JPS6427336A publication Critical patent/JPS6427336A/en
Pending legal-status Critical Current

Links

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE:To reproduce a stable PLL clock signal while avoiding the disadvantage of simultaneous production of an error signal and a reference signal by ORing exclusively the error signal and the reference signal and detecting coincidence and discrepancy between the error signal and the reference signal so as to control the phase comparison output. CONSTITUTION:The error signal PD from an EX-OR circuit 4 and the reference signal REF from the EX-OR circuit 5 are fed to an EX-OR circuit 11. Then the coincidence/discrepancy detection signal from the EX-OR circuit 11 and the reference signal REF from the EX-OR circuit 5 are fed to a NAND circuit 13. Then both the signals are fed to a gate terminal G of a FET 7. Moreover, the coincidence/discrepancy detection signal from the EX-OR circuit 11 and the reference signal from the EXOR circuit 5 via an inverter 12 are fed to an AND circuit 14 and the result is fed to a gate terminal G of the FET 8. Thus, the simultaneous turning-on of both the FETs 7, 8 is avoided by using the output from the NAND circuit 13 and the AND circuit 14.
JP62182233A 1987-07-23 1987-07-23 Phase comparator circuit Pending JPS6427336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62182233A JPS6427336A (en) 1987-07-23 1987-07-23 Phase comparator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62182233A JPS6427336A (en) 1987-07-23 1987-07-23 Phase comparator circuit

Publications (1)

Publication Number Publication Date
JPS6427336A true JPS6427336A (en) 1989-01-30

Family

ID=16114673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62182233A Pending JPS6427336A (en) 1987-07-23 1987-07-23 Phase comparator circuit

Country Status (1)

Country Link
JP (1) JPS6427336A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6680992B1 (en) 1998-08-26 2004-01-20 Nec Corporation Clock identification and reproduction circuit
KR100451765B1 (en) * 2001-12-20 2004-10-08 주식회사 하이닉스반도체 parity error detection circuit
CN103807195A (en) * 2012-11-07 2014-05-21 英业达科技有限公司 Fan control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6680992B1 (en) 1998-08-26 2004-01-20 Nec Corporation Clock identification and reproduction circuit
KR100451765B1 (en) * 2001-12-20 2004-10-08 주식회사 하이닉스반도체 parity error detection circuit
CN103807195A (en) * 2012-11-07 2014-05-21 英业达科技有限公司 Fan control device

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