Roland Juno DCOs

Posted by & filed under Juno, Oscillators, Roland.

This page is a brief look at the technology of the Roland Juno series digitally controlled oscillators. The specific scheme presented here was introduced in the Juno 106 in 1984, but the same basic DCO design turned up in many Roland instruments through the 1980s (including the JX-3P, JX-8P, JX-10 and the MKS modules based on these) up until the D-50 in 1987. The Roland DCO is an interesting hybrid design. Although digitally controlled and digitally stable, the oscillator produces… Read more »