Dual-frequency adjustable SMASH delta-sigma modulator

The invention discloses a dual-frequency adjustable SMASH delta-sigma modulator, which is characterized in that: the dual-frequency adjustable SMASH delta-sigma modulator is provided with a plurality of modulation channels; the modulator comprises a first stage and a second stage which are the same in structure. The first-stage structure and the second-stage structure are both two-stage delta-sigma modulators; from the perspective of the whole architecture, an input signal X is input into the first stage, after a first quantizer Q1 of the first stage is quantized, the input Y1 of the first quantizer Q1 is subtracted from the output of the first quantizer Q1, namely the output of the first stage, so that first quantization noise E1 of the first quantizer Q1 is obtained and input into the second stage, and the output of the first stage and the output of the second stage are added and subtracted to obtain an output signal V; according to the invention, the dual-frequency can be arbitrarily adjusted within the ra