Skip to content
Snippets Groups Projects
Select Git revision
  • 7422d38dacf57c64f4c69680334d58c9cc70fceb
  • master default protected
2 results

humidity-chicklet

David Huss's avatar
David Huss authored
7422d38d
History

Humidity-Chicklet

A basic buffered Crossfader chicklet.

Basic Info

  • Two inputs (IN_A and IN_B) can be blended via one potentiometer (Fade)
  • Tiny Formfactor: 45 x 18.75 mm
  • Operates on ±9 to ±15V (if you have no bipolar PSU use a simple railsplitter)
  • Optional Level control (replace with fixed resistor if not needed)

Build it

  • Depending on the Opamp you may omit C1 and C2 (they should prevent oscillation)
  • You should not omit C3 and C4
  • All Resistors except R6 are 0805 10k – if you only have 100k Potentiometers just use 100k resistors instead
  • If you don't need the Level Pot bridge the thing with a resistor instead (marked on silkscreen)

BOM

n Refdes. MPN optional
5 R1, R2, R3, R4, R5 0805 10k same value as Pots
1 R6 0805 100R can be bridged with solder
2 C1, C2 0603 220pF anything between 100pF and 470pF should work
2 C3, C4 0603 100nF
2 FADE, LEVEL Potentiometer (9mm) you may omit LEVEL, see silkscreen
1 U1 SOIC-8 Dual Opamp