Circuit Atlas · Glossary · Analogue design
Sallen-Key
IN DEVELOPMENT · REV 2027.4 (DRAFT) · DESIGN TARGETS, NOT MEASUREMENTS
HUSH M4 is in development. This draft is published on zakkhutoretsky.com; it has no price and no ordering. Figures marked design target are goals for the finished product. Figures marked calculated come from the published formulas. No value on these pages was measured on a built unit. Interviews are cited as the design brief, not as an endorsement.
Second-order Butterworth Sallen-Key, equal resistors and equal capacitors, f0 = 1/(2πRC), K = 1 + Rf/Rg = 3 − 1/Q.
In the documents
- mixer/schematics/s3a-isolator-building-block
- mixer/manual/derivations · sallen-key-and-linkwitz-riley
See this control Play the panel Technical manual Schematics