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1. WO2007147132 - CONTINUOUS GAIN COMPENSATION AND FAST BAND SELECTION IN A MULTI-STANDARD, MULTI-FREQUENCEY SYNTHESIZER

Publication Number WO/2007/147132
Publication Date 21.12.2007
International Application No. PCT/US2007/071367
International Filing Date 15.06.2007
Chapter 2 Demand Filed 28.05.2008
IPC
H03L 7/187 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7Automatic control of frequency or phase; Synchronisation
06using a reference signal applied to a frequency- or phase-locked loop
16Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
18using a frequency divider or counter in the loop
183a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
187using means for coarse tuning the voltage controlled oscillator of the loop
H03L 7/093 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7Automatic control of frequency or phase; Synchronisation
06using a reference signal applied to a frequency- or phase-locked loop
08Details of the phase-locked loop
085concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
093using special filtering or amplification characteristics in the loop
H03L 7/099 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7Automatic control of frequency or phase; Synchronisation
06using a reference signal applied to a frequency- or phase-locked loop
08Details of the phase-locked loop
099concerning mainly the controlled oscillator of the loop
H03L 7/10 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7Automatic control of frequency or phase; Synchronisation
06using a reference signal applied to a frequency- or phase-locked loop
08Details of the phase-locked loop
10for assuring initial synchronisation or for broadening the capture range
H03L 7/107 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7Automatic control of frequency or phase; Synchronisation
06using a reference signal applied to a frequency- or phase-locked loop
08Details of the phase-locked loop
10for assuring initial synchronisation or for broadening the capture range
107using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
CPC
H03B 5/1212
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
5Generation of oscillations using amplifier with regenerative feedback from output to input
08with frequency-determining element comprising lumped inductance and capacitance
12active element in amplifier being semiconductor device
1206using multiple transistors for amplification
1212the amplifier comprising a pair of transistors, wherein an output terminal of each being connected to an input terminal of the other, e.g. a cross coupled pair
H03B 5/1228
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
5Generation of oscillations using amplifier with regenerative feedback from output to input
08with frequency-determining element comprising lumped inductance and capacitance
12active element in amplifier being semiconductor device
1228the amplifier comprising one or more field effect transistors
H03B 5/124
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
5Generation of oscillations using amplifier with regenerative feedback from output to input
08with frequency-determining element comprising lumped inductance and capacitance
12active element in amplifier being semiconductor device
1237comprising means for varying the frequency of the generator
124the means comprising a voltage dependent capacitance
H03B 5/1265
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
5Generation of oscillations using amplifier with regenerative feedback from output to input
08with frequency-determining element comprising lumped inductance and capacitance
12active element in amplifier being semiconductor device
1237comprising means for varying the frequency of the generator
1262the means comprising switched elements
1265switched capacitors
H03C 3/0925
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
CMODULATION
3Angle modulation
02Details
09Modifications of modulator for regulating the mean frequency
0908using a phase locked loop
0916with frequency divider or counter in the loop
0925applying frequency modulation at the divider in the feedback loop
H03C 3/0933
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
CMODULATION
3Angle modulation
02Details
09Modifications of modulator for regulating the mean frequency
0908using a phase locked loop
0916with frequency divider or counter in the loop
0933using fractional frequency division in the feedback loop of the phase locked loop
Applicants
  • BITWAVE SEMICONDUCTOR, INC. [US]/[US] (AllExceptUS)
  • VENUTI, Jeff [US]/[US] (UsOnly)
  • BOHORQUEZ, Jose [US]/[US] (UsOnly)
Inventors
  • VENUTI, Jeff
  • BOHORQUEZ, Jose
Agents
  • ANASTASI, John, N.
Priority Data
11/454,19215.06.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CONTINUOUS GAIN COMPENSATION AND FAST BAND SELECTION IN A MULTI-STANDARD, MULTI-FREQUENCEY SYNTHESIZER
(FR) COMPENSATION DE GAIN CONTINUE ET SÉLECTION DE BANDE RAPIDE DANS UN SYNTHÉTISEUR MULTISTANDARD, MULTIFRÉQUENCE
Abstract
(EN)
A frequency synthesizer capable of high speed, low power, wideband operation including a method of gain compensation, and a method of fast voltage controlled oscillator (VCO) band calibration. In addition, the frequency synthesizer may include two or more switchable independent loop filters to facilitate wideband operation. Such a frequency synthesizer may be used in many applications, and in one example, may be particularly suitable for use in a multi-band, multi-standard transmitter or radio transceiver.
(FR)
La présente invention concerne un synthétiseur de fréquence capable d'un fonctionnement en bande large, à vitesse élevée, de faible puissance incluant un procédé de compensation de gain, et un procédé d'étalonnage rapide de bande de l'oscillateur commandé en tension (VCO). De plus, le synthétiseur de fréquence peut inclure deux ou plus de deux filtres de boucle indépendants commutables pour faciliter le fonctionnement en bande large. Un tel synthétiseur de fréquence peut être utilisé dans de nombreuses applications et, dans un exemple, peut être particulièrement approprié pour être utilisé dans un émetteur multibande, multistandard ou dans un émetteur – récepteur radio.
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