It was previously stated that users could reduce the requirements of the output filter by using large numbers of high-frequency pulses (fast pulse repetition frequencies or PRFs and short base cycles) rather than small numbers of lower frequency pulses (slow PRFs and long base cycles). Now, looking back at the simple RC filter given this “multiple” basic cycle concept, assume that the RC filter has about a 6dB/octave roll-off. If a 10MHz clock is used, the base cycle is a full eight octaves below the conversion frequency just using a simple RC filter that has a 6dB/octave roll-off. That is very effective filtering that would provide a good analog output. If an active filter is used with a 24dB/octave roll-off instead, the output would be very clean indeed.