DE69423946D1 - Frequenzsynthetisierer - Google Patents
FrequenzsynthetisiererInfo
- Publication number
- DE69423946D1 DE69423946D1 DE69423946T DE69423946T DE69423946D1 DE 69423946 D1 DE69423946 D1 DE 69423946D1 DE 69423946 T DE69423946 T DE 69423946T DE 69423946 T DE69423946 T DE 69423946T DE 69423946 D1 DE69423946 D1 DE 69423946D1
- Authority
- DE
- Germany
- Prior art keywords
- frequency synthesizer
- synthesizer
- frequency
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
- H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
- H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses
- H03K23/662—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses by adding or suppressing pulses
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/02—Digital function generators
- G06F1/025—Digital function generators for functions having two-valued amplitude, e.g. Walsh functions
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9315072 | 1993-12-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69423946D1 true DE69423946D1 (de) | 2000-05-18 |
DE69423946T2 DE69423946T2 (de) | 2001-07-19 |
Family
ID=9453963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69423946T Expired - Fee Related DE69423946T2 (de) | 1993-12-15 | 1994-12-06 | Frequenzsynthetisierer |
Country Status (4)
Country | Link |
---|---|
US (1) | US5656958A (de) |
EP (1) | EP0658838B1 (de) |
JP (1) | JPH07202691A (de) |
DE (1) | DE69423946T2 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5977805A (en) * | 1998-01-21 | 1999-11-02 | Atmel Corporation | Frequency synthesis circuit tuned by digital words |
US6822488B1 (en) * | 2000-07-31 | 2004-11-23 | Skyworks Solutions, Inc. | Frequency synthesizer |
US7539078B2 (en) * | 2006-08-22 | 2009-05-26 | Atmel Corporation | Circuits to delay a signal from a memory device |
US7433262B2 (en) * | 2006-08-22 | 2008-10-07 | Atmel Corporation | Circuits to delay a signal from DDR-SDRAM memory device including an automatic phase error correction |
US7486145B2 (en) * | 2007-01-10 | 2009-02-03 | International Business Machines Corporation | Circuits and methods for implementing sub-integer-N frequency dividers using phase rotators |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3882403A (en) * | 1974-03-14 | 1975-05-06 | Gen Dynamics Corp | Digital frequency synthesizer |
US4031476A (en) * | 1976-05-12 | 1977-06-21 | Rca Corporation | Non-integer frequency divider having controllable error |
US4216463A (en) * | 1978-08-10 | 1980-08-05 | Motorola, Inc. | Programmable digital tone detector |
US4423381A (en) * | 1981-01-16 | 1983-12-27 | Cincinnati Electronics Corporation | Pulse control circuit |
US4559613A (en) * | 1982-06-29 | 1985-12-17 | The United States Of America As Represented By The Secretary Of The Air Force | Digital frequency synthesizer circuit |
US4514696A (en) * | 1982-12-27 | 1985-04-30 | Motorola, Inc. | Numerically controlled oscillator |
US4580277A (en) * | 1984-03-12 | 1986-04-01 | Angello Paul S | Digital-based phase shift keying modulator |
US4815018A (en) * | 1985-12-24 | 1989-03-21 | Hughes Aircraft Company | Spurless fractional divider direct digital frequency synthesizer and method |
US5398031A (en) * | 1989-07-28 | 1995-03-14 | Rohm Co., Ltd. | DTMF signal generating circuit |
-
1994
- 1994-12-06 DE DE69423946T patent/DE69423946T2/de not_active Expired - Fee Related
- 1994-12-06 EP EP94203540A patent/EP0658838B1/de not_active Expired - Lifetime
- 1994-12-08 US US08/352,410 patent/US5656958A/en not_active Expired - Lifetime
- 1994-12-12 JP JP6308009A patent/JPH07202691A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0658838B1 (de) | 2000-04-12 |
DE69423946T2 (de) | 2001-07-19 |
EP0658838A1 (de) | 1995-06-21 |
JPH07202691A (ja) | 1995-08-04 |
US5656958A (en) | 1997-08-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de | ||
8370 | Indication of lapse of patent is to be deleted | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |