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US 2017/0077946 A1Published application
Delta-sigma modulator and method for signal conversion
AssigneeAms AG
InventorsThomas CHRISTEN, Thomas FROEHLICH, Andreas FITZI, Dusan PRELOG
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Abstract
A delta-sigma modulator (10) comprises a modulator loop (11) and a code generator (12). The modulator loop (11) comprises a loop filter (18). The code generator (12) is configured to generate a generator signal (BS) that is realized as an extended Barker code. The code generator (12) comprises a generator output (23) that is coupled to the loop filter (18).
Claims17
Delta-sigma modulator, comprising:
- a modulator loop (11) comprising a loop filter (18) and
- a code generator (12) that is configured to generate a generator signal (BS) that is realized as an extended Barker code and wherein the code generator (12) comprises a generator output (23) that is coupled to the loop filter (18).
Method for signal conversion, comprising:
- performing a delta-sigma modulation by a modulator loop (11) of a delta-sigma modulator (10), wherein the modulator loop (11) comprises a loop filter (18) and
- generating a generator signal (BS) that is an extended Barker code by a code generator (12) and providing the generator signal (BS) to the modulator loop (11).
An arrangement, comprising
- a first delta-sigma modulator (75′) and
- a second delta-sigma modulator (76′),
- wherein the first and the second delta-sigma modulator (75′, 76′) each comprises:
- a modulator loop (11) comprising a loop filter (18) and
- a code generator (12) that is configured to generate a generator signal (BS) that is realized as an extended Barker code,
- wherein the code generator (12) comprises a generator output (23) that is coupled to the loop filter (18), and wherein the extended Barker code of the first delta-sigma modulator (75′) is shifted in phase with respect to the extended Barker code of the second delta-sigma modulator (76′).
3 more elements
Dependencies are inferred from the claim text.