JPS5510238A - Rll circuit - Google Patents

Rll circuit

Info

Publication number
JPS5510238A
JPS5510238A JP8275278A JP8275278A JPS5510238A JP S5510238 A JPS5510238 A JP S5510238A JP 8275278 A JP8275278 A JP 8275278A JP 8275278 A JP8275278 A JP 8275278A JP S5510238 A JPS5510238 A JP S5510238A
Authority
JP
Japan
Prior art keywords
phase
voltages
gate
trs
output terminal
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
JP8275278A
Other languages
Japanese (ja)
Inventor
Hiroo Fujita
Akira Tsuzuki
Heihachiro Ebihara
Fukuo Sekiya
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP8275278A priority Critical patent/JPS5510238A/en
Priority to DE19792912406 priority patent/DE2912406A1/en
Priority to US06/025,048 priority patent/US4244043A/en
Publication of JPS5510238A publication Critical patent/JPS5510238A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop

Landscapes

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

Abstract

PURPOSE:To make a phase comparison definite by providing a charge pump circuit which performs constant-current drive corresponding to the output signal of a phase comparator circuit. CONSTITUTION:The gate electrode of transistor Tr 45 is connected to the phase lagging pulse output terminal of phase comparator 2, and the gate electrode of Tr 46 is to the phase leading pulse output terminal. Both Tr 41 and Tr 43 are coupled together via resistance 42 and operate as resistance elements. Adjusting resistance value R controls a current flowing through Trs 41 and 43, so that gate voltages of Trs 44 and 47 can be fixed. On the arrival of a phase leading pulse, Tr 46 is ON and Tr 45 is OFF to start discharge. Since the gate and source voltages of Tr 47 are held below power voltage VDD at this time, the operation is hardly influenced by the drain and dource voltages of Tr 47. On the other hand, adjusting resistance 42 to such a state causes constant-current drive.
JP8275278A 1978-03-31 1978-07-07 Rll circuit Pending JPS5510238A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8275278A JPS5510238A (en) 1978-07-07 1978-07-07 Rll circuit
DE19792912406 DE2912406A1 (en) 1978-03-31 1979-03-29 FREQUENCY DIVIDER SYSTEM
US06/025,048 US4244043A (en) 1978-03-31 1979-03-29 Frequency division system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8275278A JPS5510238A (en) 1978-07-07 1978-07-07 Rll circuit

Publications (1)

Publication Number Publication Date
JPS5510238A true JPS5510238A (en) 1980-01-24

Family

ID=13783158

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8275278A Pending JPS5510238A (en) 1978-03-31 1978-07-07 Rll circuit

Country Status (1)

Country Link
JP (1) JPS5510238A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570131A (en) * 1982-12-14 1986-02-11 Sgs-Ates Deutschland Halbleiter Bauelemente Gmbh PLL circuit with selectable current charging
JPS61177023A (en) * 1985-01-31 1986-08-08 Toshiba Corp Synthesizer circuit
JPS6310911A (en) * 1986-07-02 1988-01-18 Fujitsu Ten Ltd Control circuit for electronic tuner
JPH0349423A (en) * 1989-07-18 1991-03-04 Nakamichi Corp Clock forming circuit
US5912575A (en) * 1996-09-24 1999-06-15 Mitsubishi Electric Semiconductor Software Co., Ltd. Phase-locked loop circuit with charge pump and time constant circuit
US6111469A (en) * 1997-08-20 2000-08-29 Nec Corporation Charge pumping circuit and PLL frequency synthesizer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5323257A (en) * 1976-08-14 1978-03-03 Fujitsu Ltd Phase difference detection circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5323257A (en) * 1976-08-14 1978-03-03 Fujitsu Ltd Phase difference detection circuit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570131A (en) * 1982-12-14 1986-02-11 Sgs-Ates Deutschland Halbleiter Bauelemente Gmbh PLL circuit with selectable current charging
JPS61177023A (en) * 1985-01-31 1986-08-08 Toshiba Corp Synthesizer circuit
JPS6310911A (en) * 1986-07-02 1988-01-18 Fujitsu Ten Ltd Control circuit for electronic tuner
JPH0349423A (en) * 1989-07-18 1991-03-04 Nakamichi Corp Clock forming circuit
US5912575A (en) * 1996-09-24 1999-06-15 Mitsubishi Electric Semiconductor Software Co., Ltd. Phase-locked loop circuit with charge pump and time constant circuit
US6111469A (en) * 1997-08-20 2000-08-29 Nec Corporation Charge pumping circuit and PLL frequency synthesizer

Similar Documents

Publication Publication Date Title
JPS6477465A (en) Charge pump circuit
JPS5693422A (en) Level-up circuit
JPS5510238A (en) Rll circuit
GB915314A (en) Improvements in or relating to electric waveform generators
JPS568913A (en) Signal clamping circuit
JPS54130872A (en) Bistable relay driving circuit
JPS57112135A (en) Mos type analogue switch integrated circuit
JPS55115730A (en) Switching circuit
JPS54102923A (en) Driving circiut
JPS5757028A (en) Driving circuit
JPS5797721A (en) Oscillator
JPS56137406A (en) Extension system of switch function
JPS57115030A (en) Power-on reset circuit
SU1188864A1 (en) Pulser
JPS5557919A (en) Voltage-current control circuit
JPS567522A (en) Delay circuit
JPS5217761A (en) Semiconductor universal - direction switch
JPS5538784A (en) Oscillation circuit
JPS5671490A (en) Control system for semiconductor motor
JPS57212821A (en) Oscillating circuit
JPS567523A (en) Off delay timer
JPS56132019A (en) High-voltage pulse circuit
JPS5779457A (en) Voltage comparing circuit
JPS54111743A (en) Switch circuit
JPS5476267A (en) Electronic watch