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JPS5564406A - Crystal oscillation circuit - Google Patents

Crystal oscillation circuit

Info

Publication number
JPS5564406A
JPS5564406A JP13809778A JP13809778A JPS5564406A JP S5564406 A JPS5564406 A JP S5564406A JP 13809778 A JP13809778 A JP 13809778A JP 13809778 A JP13809778 A JP 13809778A JP S5564406 A JPS5564406 A JP S5564406A
Authority
JP
Japan
Prior art keywords
output terminal
voltage
conducts
generating circuit
diodes
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.)
Granted
Application number
JP13809778A
Other languages
Japanese (ja)
Other versions
JPS6125241B2 (en
Inventor
Toru Akiyama
Tsutomu Ogishi
Masayuki Matsubara
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.)
Sanyo Electric Co Ltd
Original Assignee
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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP13809778A priority Critical patent/JPS5564406A/en
Publication of JPS5564406A publication Critical patent/JPS5564406A/en
Publication of JPS6125241B2 publication Critical patent/JPS6125241B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE: To suppress unneeded radiation and also to simplify IC-implementation by decreasing a crystal oscillation output in amplitude by providing a clamping circuit between the output terminal of a crystal oscillator and a potential generating circuit.
CONSTITUTION: A potential generating circuit is provided which consists of resistances 11 and 12 series-connected between power voltage V and the earth, and clamping silicon diodes 8 and 9 parallel-connected in mutually-opposite directions are connected between output terminal N2 of crystal oscillator 3 and output terminal N3 of the potential generating circuit. A voltage at output terminal N3 is equalized to the operating voltage of phase-inverting amplifier 1. As a result, when the voltage at output terminal N2 is greater than that at output terminal N3 by a threshold level, diode 8 conducts and when less, diode 9 conducts. When the voltage at output terminal N2 is nearly equal to the direct-current operating voltage of amplifier 1, diodes 8 and 9 are both OFF and when not, diodes 8 and 9 both conducts for clamping.
COPYRIGHT: (C)1980,JPO&Japio
JP13809778A 1978-11-07 1978-11-07 Crystal oscillation circuit Granted JPS5564406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13809778A JPS5564406A (en) 1978-11-07 1978-11-07 Crystal oscillation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13809778A JPS5564406A (en) 1978-11-07 1978-11-07 Crystal oscillation circuit

Publications (2)

Publication Number Publication Date
JPS5564406A true JPS5564406A (en) 1980-05-15
JPS6125241B2 JPS6125241B2 (en) 1986-06-14

Family

ID=15213871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13809778A Granted JPS5564406A (en) 1978-11-07 1978-11-07 Crystal oscillation circuit

Country Status (1)

Country Link
JP (1) JPS5564406A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114606A (en) * 1981-12-28 1983-07-08 Fujitsu Ltd oscillation circuit
US5399996A (en) * 1993-08-16 1995-03-21 At&T Global Information Solutions Company Circuit and method for minimizing electromagnetic emissions
JP2009124290A (en) * 2007-11-13 2009-06-04 Nippon Dempa Kogyo Co Ltd Crystal oscillator
JP5227394B2 (en) * 2008-03-13 2013-07-03 旭化成エレクトロニクス株式会社 Oscillator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114606A (en) * 1981-12-28 1983-07-08 Fujitsu Ltd oscillation circuit
US5399996A (en) * 1993-08-16 1995-03-21 At&T Global Information Solutions Company Circuit and method for minimizing electromagnetic emissions
JP2009124290A (en) * 2007-11-13 2009-06-04 Nippon Dempa Kogyo Co Ltd Crystal oscillator
JP5227394B2 (en) * 2008-03-13 2013-07-03 旭化成エレクトロニクス株式会社 Oscillator
US8653900B2 (en) 2008-03-13 2014-02-18 Asahi Kasei Microdevices Corporation Oscillator

Also Published As

Publication number Publication date
JPS6125241B2 (en) 1986-06-14

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