| 摘要 |
A circuit is proposed for avoiding interfering beat products by relatively high frequency sampling spectral components during the further processing of D/A-converted signals in an amplifier stage at whose output a low-pass filter is provided in order to reconstruct the analog signal. To this end, a broadband input filter is connected upstream of the amplifier stage, the cut-off frequency of which input filter is greater than half the sampling frequency of the D/A converter. |
