Patent ID: 7064698
Filing Date: 2006-06-20
Classification: H03M

Abstract:
1. A circuit arrangement having a sigma-delta converter ( 2 ) for convening an analog input signal into a digital output signal, wherein the sigma-delta converter ( 2 ) comprises a loop filter ( 22 ) having a filter input to which an input line ( 21 ) for the input signal is connected and having a filter output, a quantizer ( 23 ) having a quantizer input that is connected to the filter output and having a quantizer output to which an output line ( 24 ) for the output signal is connected, and a feedback loop ( 25 ) to feed the output signal back to the input signal, and the circuit arrangement has a dither-signal line ( 27 ) that is suitable for additionally applying to the quantizer input, as a dither signal, a signal tat is available in the circuit without a separate dither generator.