EP 2342829 A1 20110713 - METHOD FOR CONTROLLING THE LOOP DELAY IN A SIGMA-DELTA MODULATOR, AND SIGMA-DELTA MODULATOR IMPLEMENTING SAID METHOD
Title (en)
METHOD FOR CONTROLLING THE LOOP DELAY IN A SIGMA-DELTA MODULATOR, AND SIGMA-DELTA MODULATOR IMPLEMENTING SAID METHOD
Title (de)
VERFAHREN ZUR SCHLEIFENVERZÖGERUNGSSTEUERUNG BEI EINEM SIGMA-DELTA-MODULATOR UND SIGMA-DELTA-MODULATOR MIT DIESEM VERFAHREN
Title (fr)
PROCEDE DE CONTROLE DU RETARD DE BOUCLE DANS UN MODULATEUR SIGMA-DELTA ET MODULATEUR METTANT EN UVRE LE PROCEDE
Publication
Application
Priority
- EP 2009064321 W 20091029
- FR 0806078 A 20081031
Abstract (en)
[origin: WO2010049504A1] The invention relates to a method for controlling the loop delay in a sigma-delta modulator that consists of a loop comprising at least one integrator (400, 500), an analog-to-digital converter ADC (401, 501), a digital-to-analog converter DAC (402, 502) and an adder-subtractor (403, 503), characterised in that at least one phase control programmable digital control (f1, f2) representing an offset is applied to one of the clock signals of the loop converters in order to adjust the relative phase between the clock signal h1(t) of the ADC converter (401, 501) and the clock signal h2(t) of the DAC converter (402, 502). The invention also relates to a sigma-delta modulator for implementing said method.
IPC 8 full level
H03M 3/02 (2006.01); H03M 1/06 (2006.01); H03M 1/10 (2006.01)
CPC (source: EP US)
H03M 3/37 (2013.01 - EP US); H03M 3/402 (2013.01 - EP US); H03M 3/424 (2013.01 - EP US); H03M 3/456 (2013.01 - EP US)
Citation (search report)
See references of WO 2010049504A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2010049504 A1 20100506; EP 2342829 A1 20110713; FR 2938082 A1 20100507; FR 2938082 B1 20130329; US 2012056765 A1 20120308
DOCDB simple family (application)
EP 2009064321 W 20091029; EP 09756277 A 20091029; FR 0806078 A 20081031; US 200913127040 A 20091029