diy analog vc-lpf · 2014-07-26 · can be converted for external cv input (0..+10v) do not use...

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Description DIY Analog VC-LPF ericarcher.net/devices/DIY-LPF Basic voltage-controlled filter designed for 9V battery power. 12dB / oct state variable LPF with LM13700-type OTA 5V max input level before distortion. Center frequency range 40Hz – 12kHz Build it yourself on perfboard. Use pad-per-hole “PC3” type version 1.0 MIX, FREQ, and RESONANCE controls Can be converted for external CV input (0..+10V) do not use with negative voltage

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Page 1: DIY Analog VC-LPF · 2014-07-26 · Can be converted for external CV input (0..+10V) do not use with negative voltage. Bill of Materials. Schematic. Values. Names. Placement. GND

Description

DIY Analog VC-LPFericarcher.net/devices/DIY-LPF

Basic voltage-controlled filter designed for 9V battery power.

12dB / oct state variable LPF with LM13700-type OTA

5V max input level before distortion.

Center frequency range 40Hz – 12kHz

Build it yourself on perfboard. Use pad-per-hole “PC3” type

version 1.0

MIX, FREQ, and RESONANCE controls

Can be converted for external CV input (0..+10V)do not use with negative voltage

Page 2: DIY Analog VC-LPF · 2014-07-26 · Can be converted for external CV input (0..+10V) do not use with negative voltage. Bill of Materials. Schematic. Values. Names. Placement. GND

Bill of Materials

Page 3: DIY Analog VC-LPF · 2014-07-26 · Can be converted for external CV input (0..+10V) do not use with negative voltage. Bill of Materials. Schematic. Values. Names. Placement. GND

Schematic

Page 4: DIY Analog VC-LPF · 2014-07-26 · Can be converted for external CV input (0..+10V) do not use with negative voltage. Bill of Materials. Schematic. Values. Names. Placement. GND

Values

Page 5: DIY Analog VC-LPF · 2014-07-26 · Can be converted for external CV input (0..+10V) do not use with negative voltage. Bill of Materials. Schematic. Values. Names. Placement. GND

Names

Page 6: DIY Analog VC-LPF · 2014-07-26 · Can be converted for external CV input (0..+10V) do not use with negative voltage. Bill of Materials. Schematic. Values. Names. Placement. GND

Placement

Page 7: DIY Analog VC-LPF · 2014-07-26 · Can be converted for external CV input (0..+10V) do not use with negative voltage. Bill of Materials. Schematic. Values. Names. Placement. GND

GND

Page 8: DIY Analog VC-LPF · 2014-07-26 · Can be converted for external CV input (0..+10V) do not use with negative voltage. Bill of Materials. Schematic. Values. Names. Placement. GND

Virtual GND

Page 9: DIY Analog VC-LPF · 2014-07-26 · Can be converted for external CV input (0..+10V) do not use with negative voltage. Bill of Materials. Schematic. Values. Names. Placement. GND

9V

Page 10: DIY Analog VC-LPF · 2014-07-26 · Can be converted for external CV input (0..+10V) do not use with negative voltage. Bill of Materials. Schematic. Values. Names. Placement. GND

SIGNAL1

Page 11: DIY Analog VC-LPF · 2014-07-26 · Can be converted for external CV input (0..+10V) do not use with negative voltage. Bill of Materials. Schematic. Values. Names. Placement. GND

SIGNAL2

Page 12: DIY Analog VC-LPF · 2014-07-26 · Can be converted for external CV input (0..+10V) do not use with negative voltage. Bill of Materials. Schematic. Values. Names. Placement. GND

Top Side

Page 13: DIY Analog VC-LPF · 2014-07-26 · Can be converted for external CV input (0..+10V) do not use with negative voltage. Bill of Materials. Schematic. Values. Names. Placement. GND

Bottom Side

(top edge)