Digital-to-analog converter for bipolar signals

Details Digital-to-analog converter for bipolar signals Digital-to-analog converter for bipolar signals

H - Electricity

03

M

354/97

H03M 1/66 (2006.01) H03M 1/00 (2006.01)

Patent

CA 1212777

ABSTRACT: "Digital-to-analog converter for bipolar signals" In a digital-to-analog converter for bipolar signals all the bits change when the signals pass through the zero level. This result is a poor signal-to-noise ratio owing the small signal and the larger noise contribution of the switching transients. The invention is to add a digital number to or subtract it from the digital input signal as an offset. As a result of this, the point at which all the bits change is shifted towards a higher amplitude, which improves the signal-to-noise ratio and the distortion behaviour in the case of digital audio signals.

402204

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