ATE365397T1 - Doppelzugriffsmodulator mit einem frequenzsynthetisierer - Google Patents

Doppelzugriffsmodulator mit einem frequenzsynthetisierer

Info

Publication number
ATE365397T1
ATE365397T1 AT04290262T AT04290262T ATE365397T1 AT E365397 T1 ATE365397 T1 AT E365397T1 AT 04290262 T AT04290262 T AT 04290262T AT 04290262 T AT04290262 T AT 04290262T AT E365397 T1 ATE365397 T1 AT E365397T1
Authority
AT
Austria
Prior art keywords
vco
signal
frequency divider
pll
modulator
Prior art date
Application number
AT04290262T
Other languages
English (en)
Inventor
Nadim Khlat
Original Assignee
Freescale Semiconductor Inc
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 Freescale Semiconductor Inc filed Critical Freescale Semiconductor Inc
Application granted granted Critical
Publication of ATE365397T1 publication Critical patent/ATE365397T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0966—Modifications of modulator for regulating the mean frequency using a phase locked loop modulating the reference clock
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
    • H03C3/0925—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop applying frequency modulation at the divider in the feedback loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
    • H03C3/0933—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop using fractional frequency division in the feedback loop of the phase locked loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0941—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation at more than one point in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/095—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation to the loop in front of the voltage controlled oscillator

Landscapes

  • Transmitters (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
AT04290262T 2004-01-30 2004-01-30 Doppelzugriffsmodulator mit einem frequenzsynthetisierer ATE365397T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04290262A EP1560336B1 (de) 2004-01-30 2004-01-30 Doppelzugriffsmodulator mit einem Frequenzsynthetisierer

Publications (1)

Publication Number Publication Date
ATE365397T1 true ATE365397T1 (de) 2007-07-15

Family

ID=34639492

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04290262T ATE365397T1 (de) 2004-01-30 2004-01-30 Doppelzugriffsmodulator mit einem frequenzsynthetisierer

Country Status (4)

Country Link
US (1) US7109816B2 (de)
EP (1) EP1560336B1 (de)
AT (1) ATE365397T1 (de)
DE (1) DE602004007095T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7199677B2 (en) * 2004-03-19 2007-04-03 Matsushita Electric Industrial Co., Ltd. Frequency modulation apparatus
US7098754B2 (en) * 2005-01-31 2006-08-29 Rf Micro Devices, Inc. Fractional-N offset phase locked loop
US20060217082A1 (en) * 2005-03-22 2006-09-28 Georg Fischer Shaping noise in power amplifiers of duplex communication systems
US7715808B2 (en) * 2005-04-28 2010-05-11 Panasonic Corporation Polar modulating circuit, polar coordinate modulating method, integrated circuit and radio transmission device
US7289004B2 (en) * 2005-08-15 2007-10-30 Motorola, Inc. Dual port modulator
US7565118B2 (en) * 2005-09-08 2009-07-21 Panasonic Corporation Polar modulation transmission apparatus and wireless communication apparatus
US7693496B2 (en) * 2006-09-07 2010-04-06 Infineon Technologies Ag Polar transmitter arrangement and method
US20100009641A1 (en) * 2008-07-11 2010-01-14 Matsushita Electric Industrial Co.,Ltd. Digital rf phase control in polar modulation transmitters
US8952763B2 (en) * 2012-05-10 2015-02-10 Mediatek Inc. Frequency modulator having digitally-controlled oscillator with modulation tuning and phase-locked loop tuning
US9444470B2 (en) * 2014-01-31 2016-09-13 Microsemi Semiconductor Ulc Double phase-locked loop with frequency stabilization
US9172570B1 (en) * 2014-06-13 2015-10-27 Intel IP Corporation Compensation of oscillator frequency pulling
US12028024B2 (en) * 2019-12-06 2024-07-02 Silicon Laboratories Inc. System and method of mitigating interference caused by coupling from power amplifier to voltage-controlled oscillator

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5021754A (en) * 1990-07-16 1991-06-04 Motorola, Inc. Fractional-N synthesizer having modulation spur compensation
US5111162A (en) * 1991-05-03 1992-05-05 Motorola, Inc. Digital frequency synthesizer having AFC and modulation applied to frequency divider
US5495206A (en) * 1993-10-29 1996-02-27 Motorola, Inc. Fractional N frequency synthesis with residual error correction and method thereof
US5493700A (en) * 1993-10-29 1996-02-20 Motorola Automatic frequency control apparatus
FR2728410B1 (fr) * 1994-12-16 1997-01-24 Thomson Csf Dispositif de synthese de frequence pour recepteur v/uhf large bande
US5856766A (en) * 1997-06-30 1999-01-05 Motorola Inc. Communication device with a frequency compensating synthesizer and method of providing same
US6094569A (en) * 1997-08-12 2000-07-25 U.S. Philips Corporation Multichannel radio device, a radio communication system, and a fractional division frequency synthesizer
US6104222A (en) * 1997-12-17 2000-08-15 Sony Corporation Flexible phase locked loop system
DE69826835T2 (de) * 1998-05-29 2006-02-23 Motorola Semiconducteurs S.A. Frequenzsynthetisierer
DE10065657A1 (de) * 2000-12-29 2002-07-04 Thomas Musch Kaskadierte Phasenregelkreise zur Linearisierung von Oszillatoren mit starkem Phasenrauschen
DE10108636A1 (de) * 2001-02-22 2002-09-19 Infineon Technologies Ag Abgleichverfahren und Abgleicheinrichtung für PLL-Schaltung zur Zwei-Punkt-Modulation
US6553089B2 (en) * 2001-03-20 2003-04-22 Gct Semiconductor, Inc. Fractional-N frequency synthesizer with fractional compensation method

Also Published As

Publication number Publication date
US20050175137A1 (en) 2005-08-11
DE602004007095T2 (de) 2007-10-11
US7109816B2 (en) 2006-09-19
DE602004007095D1 (de) 2007-08-02
EP1560336B1 (de) 2007-06-20
EP1560336A1 (de) 2005-08-03

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Legal Events

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