Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
paper_bits:pb109_vcoii [2020/05/13 22:52]
admin [Parts]
paper_bits:pb109_vcoii [2020/07/16 18:19] (current)
admin
Line 1: Line 1:
 ===== PB109 VCO II ===== ===== PB109 VCO II =====
  
-An other voltage controlled oscillator. It comes with a really beautiful shaped sine wave - it is stable and with the same peak to peak over all frequencies. One can switch between square, triangle and sine wave. In the square/​triangle mode one can change with a potentiometer from triangle to sawtooth wave or change the duty cycle of the square wave. In sine wave mode one can shape the sine wave to an interesting "sea saw" wave.\\+This is the main voltage controlled oscillator ​due to its really beautiful shaped sine wave - it is stable and with the same peak to peak over all frequencies. One can switch between square, triangle and sine wave. In the square/​triangle mode one can change with a potentiometer from triangle to sawtooth wave or change the duty cycle of the square wave. In sine wave mode one can shape the sine wave to an interesting "sea saw" wave.\\
 All OpAmps are the rail to rail [[http://​ww1.microchip.com/​downloads/​en/​DeviceDoc/​21733j.pdf|MCP6002]] ICs. For a perfect sine wave one should trim the 500R trim potentiometer to a symmetrically wave.\\ All OpAmps are the rail to rail [[http://​ww1.microchip.com/​downloads/​en/​DeviceDoc/​21733j.pdf|MCP6002]] ICs. For a perfect sine wave one should trim the 500R trim potentiometer to a symmetrically wave.\\
  
Line 16: Line 16:
 ---- ----
 ====Paper PCB==== ====Paper PCB====
 +**v2.0**\\
 {{:​paper_bits:​pb109_sine_vco_ii_20.jpg?​400|}}\\ {{:​paper_bits:​pb109_sine_vco_ii_20.jpg?​400|}}\\
 {{ :​paper_bits:​pb109_sine_vco_ii_20.zip |}}\\ {{ :​paper_bits:​pb109_sine_vco_ii_20.zip |}}\\
Line 49: Line 49:
   * 1x pin header, male 90° 1x3   * 1x pin header, male 90° 1x3
   * 1x pin header, male 90° 1x2   * 1x pin header, male 90° 1x2
-  * 4x jumpers+  * 3x jumpers
   * 2x mini switch   * 2x mini switch
   * **Potentiometers:​**   * **Potentiometers:​**