Title:
CONTINUOUS-TIME QUANTIZATION DEVICE, RADIO FREQUENCY SIGNAL RECEIVER COMPRISING SUCH A DEVICE AND CONTINUOUS-TIME QUANTIZATION METHOD
Document Type and Number:
WIPO Patent Application WO/2015/049466
Kind Code:
A3
Abstract:
This device (10) for quantizing an analog input signal (Vin), in order to supply a continuous-time output signal (Bs, Benv) quantized using a plurality of bits, comprises an electronic sign analysis circuit (12), designed to supply a first signal (Bs) representative of a first sign bit of the output signal. It further comprises an electronic envelope analysis circuit (16), comprising a comparator/quantizer (18) with two inputs, one of which receives the analog input signal (Vin), designed to supply a second signal (Benv) representative of at least a second bit of the output signal, called the quantized envelope signal, and a feedback loop (20, 22) with continuous-time digital-to-analog conversion of the quantized envelope signal (Benv), disposed between the output and the other of the two inputs of the comparator/quantizer (18). The quantized envelope signal (Benv) is a signal of which a low pass filtering is representative of the amplitude of an envelope signal (Venv) of the input signal and the feedback loop (20, 22) comprises a low pass filter (22).
Inventors:
LACHARTRE DAVID (FR)
Application Number:
PCT/FR2014/052495
Publication Date:
June 11, 2015
Filing Date:
October 02, 2014
Export Citation:
Assignee:
COMMISSARIAT L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (FR)
International Classes:
H03M1/12; H03M3/02; H03M1/48
Foreign References:
| FR2959079A1 | 2011-10-21 |
Other References:
DAVID LACHARTRE: "A 550Â[mu]W inductorless bandpass quantizer in 65 nm CMOS for 1.4-to-3GHz digial RF receivers", VLSI CIRCUITS (VLSIC), 2011 SYMPOSIUM ON, IEEE, 15 June 2011 (2011-06-15), pages 166 - 167, XP032019467, ISBN: 978-1-61284-175-5
Attorney, Agent or Firm:
BONNET, Michel (Boîte n° 1, 93 rue Réaumur Paris, FR)
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