JPS5513590A - Crystal oscillator circuit - Google Patents

Crystal oscillator circuit

Info

Publication number
JPS5513590A
JPS5513590A JP8692778A JP8692778A JPS5513590A JP S5513590 A JPS5513590 A JP S5513590A JP 8692778 A JP8692778 A JP 8692778A JP 8692778 A JP8692778 A JP 8692778A JP S5513590 A JPS5513590 A JP S5513590A
Authority
JP
Japan
Prior art keywords
clamp circuit
amplitude
output
capacitor
constitution
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
JP8692778A
Other languages
Japanese (ja)
Inventor
Tsutomu Ogishi
Toru Akiyama
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 JP8692778A priority Critical patent/JPS5513590A/en
Publication of JPS5513590A publication Critical patent/JPS5513590A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To reduce needless radiation by restraining the amplitude of a crystal oscillation output by a clamp circuit.
CONSTITUTION: Clamp circuit 17 which clamps the output amplitude is added to the output end of a crystal osicillator. As regards clamp circuit 17, for example, two silicon diodes 18 and 19 which are connected in parallel in a direction opposite to each other and capacitor 20 are connected in series, and the other end of capacitor 20 is connected to the earth. By this constitution, the crystal oscillation output can be restrained to the double amplitude of the threshold voltage in the forward direction of silicon diodes without changing the operating point of inversion amplifier 7. As a result, no large signals are applied to the IC terminal, so that needless radiation can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP8692778A 1978-07-14 1978-07-14 Crystal oscillator circuit Pending JPS5513590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8692778A JPS5513590A (en) 1978-07-14 1978-07-14 Crystal oscillator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8692778A JPS5513590A (en) 1978-07-14 1978-07-14 Crystal oscillator circuit

Publications (1)

Publication Number Publication Date
JPS5513590A true JPS5513590A (en) 1980-01-30

Family

ID=13900487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8692778A Pending JPS5513590A (en) 1978-07-14 1978-07-14 Crystal oscillator circuit

Country Status (1)

Country Link
JP (1) JPS5513590A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009124290A (en) * 2007-11-13 2009-06-04 Nippon Dempa Kogyo Co Ltd Crystal oscillator
JP2011077724A (en) * 2009-09-29 2011-04-14 Murata Mfg Co Ltd Crystal oscillation circuit
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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP2011077724A (en) * 2009-09-29 2011-04-14 Murata Mfg Co Ltd Crystal oscillation circuit

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