SE8401268L - crystal oscillator - Google Patents
crystal oscillatorInfo
- Publication number
- SE8401268L SE8401268L SE8401268A SE8401268A SE8401268L SE 8401268 L SE8401268 L SE 8401268L SE 8401268 A SE8401268 A SE 8401268A SE 8401268 A SE8401268 A SE 8401268A SE 8401268 L SE8401268 L SE 8401268L
- Authority
- SE
- Sweden
- Prior art keywords
- stage
- comparator
- crystal oscillator
- transistor
- gate
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
- H03K3/354—Astable circuits
- H03K3/3545—Stabilisation of output, e.g. using crystal
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Abstract
A crystal oscillator (10) including a basic oscillator stage (16), a comparator stage (18), and a TTL output stage (20) has the amplifying transistor gate (26) of the comparator stage (18) connected to the input node (21) of the basic oscillator stage (16) to improve the duty cycle. A load transistor (M7) for the amplifying transistor (M6) of the comparator (18) is connected as a stably biased source-follower to permit symmetrical square-wave output over a wide range of supply voltages. The gate of the load transistor (M7) may be connected to the output node 22 of the inverter (M1, M2) of the basic oscillator stage (16), and is an active load. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US47385783A | 1983-03-09 | 1983-03-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8401268D0 SE8401268D0 (en) | 1984-03-07 |
SE8401268L true SE8401268L (en) | 1984-09-10 |
Family
ID=23881306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8401268A SE8401268L (en) | 1983-03-09 | 1984-03-07 | crystal oscillator |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS59169211A (en) |
DE (1) | DE3408393A1 (en) |
FR (1) | FR2542526A1 (en) |
GB (1) | GB2136651A (en) |
IT (1) | IT1175948B (en) |
SE (1) | SE8401268L (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4766399A (en) * | 1987-08-03 | 1988-08-23 | International Business Machines Corporation | Oscillator circuit |
US4825178A (en) * | 1987-08-26 | 1989-04-25 | International Business Machines Corporation | Oscillator with noise rejection and square wave output |
US4853655A (en) * | 1987-11-27 | 1989-08-01 | American Telephone And Telegraph Company, At&T Bell Laboratories | High frequency CMOS oscillator |
DE3831176A1 (en) * | 1988-09-13 | 1990-03-22 | Siemens Ag | Oscillator cell |
US5446420A (en) * | 1993-08-25 | 1995-08-29 | Motorola, Inc. | Method and apparatus for reducing jitter and improving testability of an oscillator |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3350662A (en) * | 1965-10-21 | 1967-10-31 | Ibm | Crystal controlled oscillator circuit utilizing transistors |
US3665342A (en) * | 1970-11-04 | 1972-05-23 | Motorola Inc | Resonant circuit transistor oscillator system |
US3913026A (en) * | 1974-04-08 | 1975-10-14 | Bulova Watch Co Inc | Mos transistor gain block |
CH580358A5 (en) * | 1974-09-20 | 1976-09-30 | Centre Electron Horloger | |
JPS5190549A (en) * | 1975-02-06 | 1976-08-09 | ||
US3959744A (en) * | 1975-02-26 | 1976-05-25 | Time Computer, Inc. | CMOS oscillator having bias circuit outside oscillator feedback loop |
FR2379945A1 (en) * | 1977-02-04 | 1978-09-01 | Labo Cent Telecommunicat | Matching circuit for logic systems - has three MOSFETs in drain-source series between supply poles |
CH641316B (en) | 1980-09-19 | Ebauches Electroniques Sa | LOW CURRENT CONSUMPTION OSCILLATOR CIRCUIT. | |
US4383224A (en) * | 1981-01-21 | 1983-05-10 | Bell Telephone Laboratories, Incorporated | NMOS Crystal oscillator |
-
1984
- 1984-03-06 FR FR8403447A patent/FR2542526A1/en not_active Withdrawn
- 1984-03-07 SE SE8401268A patent/SE8401268L/en not_active Application Discontinuation
- 1984-03-08 DE DE19843408393 patent/DE3408393A1/en not_active Withdrawn
- 1984-03-08 IT IT19954/84A patent/IT1175948B/en active
- 1984-03-08 JP JP59043023A patent/JPS59169211A/en active Pending
- 1984-03-09 GB GB08406277A patent/GB2136651A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB8406277D0 (en) | 1984-04-11 |
DE3408393A1 (en) | 1984-09-13 |
FR2542526A1 (en) | 1984-09-14 |
IT1175948B (en) | 1987-08-12 |
IT8419954A0 (en) | 1984-03-08 |
JPS59169211A (en) | 1984-09-25 |
SE8401268D0 (en) | 1984-03-07 |
GB2136651A (en) | 1984-09-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
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