Unnamed

class DSModulator:    """A second order delta-sigma modulator"""    def __init__(self):        self.reset()    def reset(self):        self.integrator1 = 0        self.integrator2 = 0        self.output = False    def step(self, x):        output = self.output * 2**16        self.integrator1 += x - output        self.integrator2 += self.integrator1 - output        self.output = self.integrator2 >= 2**15        return self.output