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<p>100 times and represented as a PDM bitstream, is:</p>

<p>0101011011110111111111111111111111011111101101101010100100100000010000000000000000000001000010010101<a href="page.php?w=Image%3APulse-density_modulation_1_period.gif">thumb</a>Two periods of a higher frequency sine wave would appear as:</p>

<p>0101101111111111111101101010010000000000000100010011011101111111111111011010100100000000000000100101<a href="page.php?w=Image%3APulse-density_modulation_2_periods.gif">thumb</a>In pulse-density modulation, a high density of 1s occurs at the peaks</p><p>
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