Invention Grant
US08385468B2 Asynchronous delta-sigma modulator and a method for the delta-sigma modulation of an input signal 有权
异步Δ-Σ调制器和用于输入信号的Δ-Σ调制的方法

Asynchronous delta-sigma modulator and a method for the delta-sigma modulation of an input signal
Abstract:
An asynchronous delta-sigma modulator is proposed that comprises an input port, a filter, an envelope path, a phase path, an amplifier, and a feedback path that conveys the amplifier output signal to the filter. The envelope path extracts an envelope from the signal provided by the filter and issues an envelope signal. The phase path processes or processes a phase from the signal provided by the filter and issues a phase signal. The amplifier comprises input ports for the envelope signal and the phase signal. The amplifier issues an amplifier output signal based on said envelope signal and said phase signal. The feedback path conveys the amplifier output signal to the filter. The feedback signal contains both amplitude information and phase information. A corresponding method and computer-program products usable for production and operation of the delta-sigma modulator are also disclosed.
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