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WO1996031944B1 - Circuit d'echantillonnage en phase et en quadrature - Google Patents

Circuit d'echantillonnage en phase et en quadrature

Info

Publication number
WO1996031944B1
WO1996031944B1 PCT/US1996/004685 US9604685W WO9631944B1 WO 1996031944 B1 WO1996031944 B1 WO 1996031944B1 US 9604685 W US9604685 W US 9604685W WO 9631944 B1 WO9631944 B1 WO 9631944B1
Authority
WO
WIPO (PCT)
Prior art keywords
digital
filter
samples
circuit
adc
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.)
Ceased
Application number
PCT/US1996/004685
Other languages
English (en)
Other versions
WO1996031944A1 (fr
Filing date
Publication date
Priority claimed from US08/418,546 external-priority patent/US5621345A/en
Application filed filed Critical
Priority to DE69603172T priority Critical patent/DE69603172T2/de
Priority to EP96912576A priority patent/EP0819338B1/fr
Publication of WO1996031944A1 publication Critical patent/WO1996031944A1/fr
Publication of WO1996031944B1 publication Critical patent/WO1996031944B1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Abstract

Cette invention concerne un circuit permettant d'obtenir des échantillons de composantes en phase et en quadrature d'une forme d'onde d'entrée. Ce circuit comprend un convertisseur analogique-numérique sigma-delta de suréchantillonnage qui reçoit la forme d'onde d'entrée et la convertit en échantillons numériques à une certaine vitesse de suréchantillonnage. Un premier filtre numérique, couplé au convertisseur analogique-numérique, reçoit les échantillons numériques provenant du convertisseur analogique-numérique et fournit les échantillons de composantes en phase de la forme d'onde d'entrée. Un second filtre numérique, couplé au convertisseur analogique-numérique, reçoit les échantillons numériques provenant du convertisseur analogique-numérique et fournit les échantillons de composantes en quadrature de la forme d'onde d'entrée.
PCT/US1996/004685 1995-04-07 1996-04-05 Circuit d'echantillonnage en phase et en quadrature Ceased WO1996031944A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE69603172T DE69603172T2 (de) 1995-04-07 1996-04-05 Inphase- und quadraturabtastschaltung
EP96912576A EP0819338B1 (fr) 1995-04-07 1996-04-05 Circuit d'echantillonnage en phase et en quadrature

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/418,546 US5621345A (en) 1995-04-07 1995-04-07 In-phase and quadrature sampling circuit
US08/418,546 1995-04-07

Publications (2)

Publication Number Publication Date
WO1996031944A1 WO1996031944A1 (fr) 1996-10-10
WO1996031944B1 true WO1996031944B1 (fr) 1996-11-21

Family

ID=23658580

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/004685 Ceased WO1996031944A1 (fr) 1995-04-07 1996-04-05 Circuit d'echantillonnage en phase et en quadrature

Country Status (4)

Country Link
US (1) US5621345A (fr)
EP (1) EP0819338B1 (fr)
DE (1) DE69603172T2 (fr)
WO (1) WO1996031944A1 (fr)

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