The VCLFO 10 is a simple-to-use 0-5V voltage-controlled LFO chip with many more features than your average LFO.It can produce 16 different waveforms in two banks of eight, including a wandering random wave and a noise source. Waveforms can be further shaped by the Wave Distort feature.
There is an optional sample-and-hold module that can sample whatever is selected, the current waveform or the noise or random source. The LFO frequency, waveform selection, waveform distortion, S&H rate and output level are all voltage-controlled using 0-5V.
This chip is an upgraded (but still compatible) version of the original VCLFO 9D chip. It offers an improved sample rate (31.25KHz instead of 19.5KHz), better waveform storage resolution (16-bit instead of 8) and no longer requires use of a timing crystal. Additionally, it is now possible to configure the chip for inverted CV inputs, which makes dealing with CV mixers very simple.
Another new feature is the optional on-chip waveform smoothing filter, which is designed to remove clicks caused by feedthrough in application circuits like tremolos.
The datasheet includes example circuit diagrams, example waveforms, and the chip pinout diagram.
If you’d like to program your own chip for personal use, code and further details are available over on the original article about the new Druid chips.
This chip is available in both DIP14 and SOIC14 packages.