![]() ![]() The Offset CV and Depth CV interact in an interesting way to allow the chip to produce bipolar or unipolar waveforms of either polarity. This enables the output frequency to be much higher (2MHz instead of 10’s of KHz) and that means simple RC filters can smooth the output easily without losing any waveform detail. One significant difference from the other LFO designs is that it uses Pulse Density Modulation (PDM) instead of Pulse Width Modulation (PWM) for the output. As such, it can replace the typical dual op-amp Schmitt trigger/integrator LFO design that you see in a million stompbox and guitar pedal circuits. The StompLFO design is a simplified and lower-cost version of the TapLFO designed to fit in an 8-pin chip. STOMPLFO – 8-pin tap tempo LFO for smaller spaces You can read more about it here if you like. This has been fixed, and the switch debouncing has also been improved. The TAPLFO3 chip released in February 2018 had a small bug in one of the arithmetic routines that caused it to run slightly slow when compared to the tapped tempo, especially at slower tempos.
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