VCF-3350-8
About the VCF-3350-8 PCB
VCF-3350-8 is an open source PCB design by polykit, published on GitHub. It is a 2-layer board measuring 151.5 × 90.5 mm, with 154 components from 18 distinct parts.
Other key parts include the TL074, AS3350 and TL072. By type, the board carries 94 resistors, 42 capacitors, 12 ICs and 6 connectors.
It belongs with the audio designs in this gallery.
From the project
CEM3350/AS3350 based 8 channel VCF
This repository contains schematics and Kicad PCB layout for an eight channel voltage controlled filter (VCF) based on the CEM3350/AS3350 state variable filter. Both frequency cutoff and resonance (Q) are voltage controllable. It offers a simoultaneous low-pass and band-pass output.
https://electricdruid.net/datasheets/AS3350.pdf
http://www.synfo.nl/datasheets/CEM3350.pdf
Main components on the VCF-3350-8
VCF-3350-8 bill of materials (BOM)
154 components, 18 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | TL074 | DIP-14_W7.62mm_Socket_LongPads | U1, U5, U8, U11 |
| 4 | AS3350 | DIP-16_W7.62mm_Socket_LongPads | U2, U6, U9, U12 |
| 4 | TL072 | DIP-8_W7.62mm_Socket_LongPads | U3, U4, U7, U10 |
| 1 | IN | IDC-Header_2x08_P2.54mm_Vertical | J1 |
| 1 | FREQ | IDC-Header_2x08_P2.54mm_Vertical | J2 |
| 1 | OUT_LP | IDC-Header_2x08_P2.54mm_Vertical | J3 |
| 1 | OUT_BP | IDC-Header_2x08_P2.54mm_Vertical | J4 |
| 1 | CONTROL | Molex_KK-254_AE-6410-05A_1x05_P2.54mm_Vertical | J5 |
| 1 | POWER | IDC-Header_2x05_P2.54mm_Vertical | J6 |
| 16 | 22n | C_Disc_D4.7mm_W2.5mm_P5.00mm | C1, C2, C4, C5, C11, C12, C14, C15 +8 |
| 24 | 100n | C_Disc_D3.4mm_W2.1mm_P2.50mm | C3, C6, C7, C8, C9, C10, C13, C16 +16 |
| 2 | 470u | CP_Radial_D8.0mm_P5.00mm | C41, C42 |
| 24 | 10k | R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | R1, R2, R3, R4, R5, R6, R7, R8 +16 |
| 24 | 22k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R25, R26, R28, R38, R40, R41, R48, R49 +16 |
| 16 | 200 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R27, R30, R36, R39, R50, R53, R59, R62 +8 |
| 24 | 220 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R29, R31, R32, R34, R35, R37, R52, R54 +16 |
| 4 | 47k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R33, R56, R77, R98 |
| 2 | 10 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R109, R110 |
VCF-3350-8 design files
The KiCad project lives in the polykit/vcf-3350-8 repository on GitHub; these links point at the commit this page was built from.
- Layoutvcf-3350-8.kicad_pcb
VCF-3350-8: common questions
How big is the VCF-3350-8 PCB?
The VCF-3350-8 measures 151.5 × 90.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the VCF-3350-8?
154 components, from 18 distinct parts. The full bill of materials is listed on this page.
Where can I download the VCF-3350-8 design files?
From the polykit/vcf-3350-8 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the VCF-3350-8 design in my own project?
The repository has no license, so all rights stay with polykit. Use it as a reference, and ask the author before reusing the design.
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