DE10125155C1 - Programmierbarer fraktionaler Frequenzteiler - Google Patents
Programmierbarer fraktionaler FrequenzteilerInfo
- Publication number
- DE10125155C1 DE10125155C1 DE10125155A DE10125155A DE10125155C1 DE 10125155 C1 DE10125155 C1 DE 10125155C1 DE 10125155 A DE10125155 A DE 10125155A DE 10125155 A DE10125155 A DE 10125155A DE 10125155 C1 DE10125155 C1 DE 10125155C1
- Authority
- DE
- Germany
- Prior art keywords
- output
- frequency divider
- phase
- fractional frequency
- phases
- 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
- 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
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
-
- 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
- H03K23/68—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a base which is a non-integer
-
- 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
- H03L7/081—Details of the phase-locked loop provided with an additional controlled phase shifter
Abstract
Description
FF1-FF6 Schieberegister
Ph1-ph6 Phasen
Ph_out Phasenausgang
Fout Frequenzausgang
CK Takteingang
D Signaleingang
Q Signalausgang
MUX1-MUX6 Multiplexer
B1, B2 Steuerbits
S0, S1 Steuereingang
Claims (7)
eine Phasenauswähleinrichtung (1), an deren Eingang mehrere gegeneinander phasenverschobene Signale (Phasen ph- phK) anliegen, die abwechselnd auf einen Ausgang (ph-out) durchgeschaltet werden, an dem ein aus den Signalen (ph1-phK) gebildetes Phasensignal ausgegeben wird, und
eine Steuereinrichtung (2, 4) zur Auswahl der einzelnen Phasen (ph1-phK),
dadurch gekennzeichnet,
dass die Steuereinrichtung (2, 4) derart gestaltet ist, dass die Anzahl der Phasen (ph1-phK) und/oder die Reihenfolge, in der die Phasen (ph1-phK) auf den Ausgang (ph-out) durchgeschaltet werden, programmierbar ist.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10125155A DE10125155C1 (de) | 2001-05-22 | 2001-05-22 | Programmierbarer fraktionaler Frequenzteiler |
US10/153,365 US6738449B2 (en) | 2001-05-22 | 2002-05-22 | Programmable fractional frequency divider |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10125155A DE10125155C1 (de) | 2001-05-22 | 2001-05-22 | Programmierbarer fraktionaler Frequenzteiler |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10125155C1 true DE10125155C1 (de) | 2002-11-28 |
Family
ID=7685880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10125155A Expired - Fee Related DE10125155C1 (de) | 2001-05-22 | 2001-05-22 | Programmierbarer fraktionaler Frequenzteiler |
Country Status (2)
Country | Link |
---|---|
US (1) | US6738449B2 (de) |
DE (1) | DE10125155C1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6847239B2 (en) * | 2002-04-16 | 2005-01-25 | Research In Motion Limited | Frequency divider system |
JP4560039B2 (ja) * | 2003-03-19 | 2010-10-13 | エヌエックスピー ビー ヴィ | 直交クロック分周器 |
US6956793B2 (en) * | 2003-11-20 | 2005-10-18 | International Business Machines Corporation | Phase clock selector for generating a non-integer frequency division |
US8085070B2 (en) * | 2007-12-20 | 2011-12-27 | Integrated Device Technology Inc. | Overclocking with phase selection |
WO2010056157A1 (en) * | 2008-11-11 | 2010-05-20 | Telefonaktiebolaget L M Ericsson (Publ) | A frequency generator |
TWI376877B (en) * | 2008-12-26 | 2012-11-11 | Ind Tech Res Inst | Clock generator and multimodulus frequency divider and delta-sigma modulator thereof |
TW201115297A (en) * | 2009-10-16 | 2011-05-01 | Novatek Microelectronics Corp | Multi-phase signals generator |
US10298382B2 (en) | 2016-06-23 | 2019-05-21 | Omnivision Technologies, Inc. | 1-16 and 1.5-7.5 frequency divider for clock synthesizer in digital systems |
CN114204937B (zh) * | 2022-02-16 | 2022-06-14 | 山东兆通微电子有限公司 | 一种分频器电路及频率合成器 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5477196A (en) * | 1993-12-24 | 1995-12-19 | Nippondenso Co., Ltd. | Pulse generator |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6157694A (en) * | 1998-12-09 | 2000-12-05 | Lucent Technologies, Inc. | Fractional frequency divider |
-
2001
- 2001-05-22 DE DE10125155A patent/DE10125155C1/de not_active Expired - Fee Related
-
2002
- 2002-05-22 US US10/153,365 patent/US6738449B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5477196A (en) * | 1993-12-24 | 1995-12-19 | Nippondenso Co., Ltd. | Pulse generator |
Non-Patent Citations (1)
Title |
---|
US-Z.: KRISHNAPURA, N. u.a.: A 5.3-GHz Programmable Divider for HiPerlLAN in 0.25 mum CMOS, In: IEEE Journal of Solid-State Circuits, Vol. 35, No. 7, July 2000, S. 1019-1024 * |
Also Published As
Publication number | Publication date |
---|---|
US20030020523A1 (en) | 2003-01-30 |
US6738449B2 (en) | 2004-05-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: LANTIQ DEUTSCHLAND GMBH, 85579 NEUBIBERG, DE |
|
R081 | Change of applicant/patentee |
Owner name: LANTIQ DEUTSCHLAND GMBH, DE Free format text: FORMER OWNER: INFINEON TECHNOLOGIES AG, 81669 MUENCHEN, DE Effective date: 20110325 Owner name: LANTIQ BETEILIGUNGS-GMBH & CO. KG, DE Free format text: FORMER OWNER: INFINEON TECHNOLOGIES AG, 81669 MUENCHEN, DE Effective date: 20110325 |
|
R081 | Change of applicant/patentee |
Owner name: LANTIQ BETEILIGUNGS-GMBH & CO. KG, DE Free format text: FORMER OWNER: LANTIQ DEUTSCHLAND GMBH, 85579 NEUBIBERG, DE |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |