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Machine translation
1. (WO2012048140) PIPELINED CONTINUOUS-TIME SIGMA DELTA MODULATOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/048140    International Application No.:    PCT/US2011/055147
Publication Date: 12.04.2012 International Filing Date: 06.10.2011
IPC:
H03M 3/00 (2006.01)
Applicants: TEXAS INSTRUMENTS INCORPORATED [US/US]; P.O. Box 655474, Mail Station 3999 Dallas, TX 75265-5474 (US) (For All Designated States Except US).
TEXAS INSTRUMENTS JAPAN LIMITED [JP/JP]; 24-1, Nishi-Shinjuku 6-chome Shinjuku-ku, Tokyo, 160-8366 (JP) (JP only).
HAROUN, Baher, S. [CA/US]; (US) (For US Only).
SRINIVASAN, Venkatesh [IN/US]; (US) (For US Only).
SATARZADEH, Patrick [US/US]; (US) (For US Only).
CORSI, Marco [GB/US]; (US) (For US Only)
Inventors: HAROUN, Baher, S.; (US).
SRINIVASAN, Venkatesh; (US).
SATARZADEH, Patrick; (US).
CORSI, Marco; (US)
Agent: FRANZ, Warren, L.; Texas Instruments Incorporated P.O. Box 655474, Mail Station 3999 Dallas, TX 75265-5474 (US)
Priority Data:
12/899,205 06.10.2010 US
Title (EN) PIPELINED CONTINUOUS-TIME SIGMA DELTA MODULATOR
(FR) MODULATEUR SIGMA-DELTA EN TEMPS CONTINU À PIPELINE
Abstract: front page image
(EN)A pipelined continuous-time (CT) sigma-delta modulators (SDM) is provided that has an architecture that is readily calibrated. The system includes a digital filter and other features that can be adjusted to account for input imbalance errors and well as quantization leakage noise. An example two-stage pipeline arrangement has CT SDMs (or sub-CT SDMs) 202 and 212, DAC 204, digital filter 206, amplifiers 220 and 210, digital gain circuit 214, summing circuits 208 and 216, output circuit 218, and an adjustable delay 222. CT SDM 202 may be a lower order modulator (i.e., order of 1 or 2), while CT SDM 212 may be a higher order modulator (i.e., order greater than 3) with aggressive noise shaping. Amplifier 210 also includes a filter.
(FR)L'invention concerne un modulateur sigma-delta (SDM) en temps continu (CT) à pipeline possédant une architecture qui est facilement étalonnée. Le système comprend un filtre numérique et d'autres éléments qui peuvent être ajustés afin de prendre en compte les erreurs de déséquilibre d'entrée ainsi que le bruit de fuite de quantification. Un système de pipeline à deux étages comprend par exemple des SDM CT (ou des sous-SDM CT) (202, 212), un CNA (204), un filtre numérique (206), des amplificateurs (220, 210), un circuit de gain numérique (214), des circuits d'addition (208, 216), un circuit de sortie (218) et un retard ajustable (222). Le SDM CT (202) peut être un modulateur d'ordre inférieur (c'est-à-dire d'un ordre de 1 ou 2), tandis que le sous-SDM CT (212) peut être un modulateur d'ordre supérieur (c'est-à-dire d'un ordre supérieur à 3) ayant une mise en forme de bruit agressive. L'amplificateur (210) comprend également un filtre.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)