Z3340 VCO
About the Z3340 VCO PCB
Z3340 VCO is an open source PCB design by brer-rabbit, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 80 × 80 mm, with 139 components from 58 distinct parts.
Other key parts include the DG442CY+, AS3340, LM79L05, LM311 and TL074. By type, the board carries 65 resistors, 47 capacitors, 15 ICs, 4 diodes, 3 transistors and 3 connectors.
It belongs with the audio designs in this gallery.
From the project
Analog synth / software interface
The Z3340 VCO is based around Alfa Rpar's AS3340 clone of the Curtis chip. This design, like other Zoxnoxious designs, interfaces with the Zoxnoxious signal bus.
Main components on the Z3340 VCO
Z3340 VCO bill of materials (BOM)
139 components, 58 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | DG442CY+ | SOIC-16_3.9x9.9mm_P1.27mm | U1, U8 |
| 1 | AS3340 | SOIC-16_3.9x9.9mm_P1.27mm | U2 |
| 1 | LM79L05 | TO-92_Inline_Wide | U3 |
| 1 | LM311 | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 2 | TL074 | TSSOP-14_4.4x5mm_P0.65mm | U5, U13 |
| 1 | LM4040AIM3-2.5 | SOT-23 | U6 |
| 1 | LM4040B-5 | SOT-23 | U7 |
| 1 | TL072 | SSOP-8_3.9x5.05mm_P1.27mm | U9 |
| 1 | AS3364 | SOIC-16_3.9x9.9mm_P1.27mm | U10 |
| 1 | PCA9555D | TSSOP-24_4.4x7.8mm_P0.65mm | U11 |
| 1 | AD5328 | TSSOP-16_4.4x5mm_P0.65mm | U12 |
| 1 | DG406 | SOIC-28W_7.5x17.9mm_P1.27mm | U14 |
| 1 | M24C02-WMN | SOIC-8_3.9x4.9mm_P1.27mm | U15 |
| 2 | 2N7002 | SOT-23 | Q1, Q2 |
| 1 | MMBT3904 | SOT-23 | Q3 |
| 1 | Conn_01x01 | PinHeader_1x01_P2.54mm_Vertical | J1 |
| 1 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | Conn_02x20_Odd_Even | PinHeader_2x20_P2.54mm_Horizontal | J3 |
| 1 | 10K | Potentiometer_Bourns_3296W_Vertical | RV1 |
| 1 | 20k | Potentiometer_Bourns_3296W_Vertical | RV2 |
Show 38 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 1N4148W | D_SOD-123 | D1, D2, D3 |
| 1 | LED | LED_0603_1608Metric | D4 |
| 24 | 0.1U 0.1u | C_0603_1608Metric | C1, C9, C11, C12, C13, C14, C17, C19 +16 |
| 5 | 10N 10n | C_0603_1608Metric | C2, C5, C7, C10, C20 |
| 1 | 1000p | Nichicon QYX2A102KTP | C4 |
| 2 | 1u | C_1206_3216Metric | C6, C8 |
| 2 | 4N7 4n7 | C_0603_1608Metric | C15, C30 |
| 1 | 1n | C_0603_1608Metric | C16 |
| 2 | 1u | C_0603_1608Metric | C18, C36 |
| 1 | 4U7 4.7u | C_0805_2012Metric | C23 |
| 5 | 22N 22n | C_0603_1608Metric | C25, C28, C33, C34, C35 |
| 1 | 220P 220p | C_0603_1608Metric | C31 |
| 2 | 22P 22p | C_0603_1608Metric | C39, C41 |
| 1 | 2u2 | C_Rect_L7.2mm_W5.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C42 |
| 1 | 120K 120k | R_0603_1608Metric | R1 |
| 2 | 470 | R_0603_1608Metric | R2, R6 |
| 1 | 1K8 1k8 | R_0603_1608Metric | R3 |
| 1 | 30K 30k | R_0603_1608Metric | R4 |
| 3 | 1M | R_0603_1608Metric | R5, R26, R34 |
| 9 | 10K 10k | R_0603_1608Metric | R7, R9, R11, R15, R17, R31, R32, R48 +1 |
| 3 | 150K 150k | R_0603_1608Metric | R8, R22, R50 |
| 1 | 51K 51k | R_0603_1608Metric | R10 |
| 2 | 56K 56k | R_0603_1608Metric | R12, R13 |
| 9 | 100K 100k | R_0603_1608Metric | R14, R16, R35, R49, R51, R54, R57, R58 +1 |
| 6 | 33K 33k | R_0603_1608Metric | R18, R19, R36, R39, R43, R47 |
| 1 | 24K 24k | R_0603_1608Metric | R20 |
| 2 | 5K6 5k6 | R_0603_1608Metric | R21, R42 |
| 1 | 39K 47k | R_0603_1608Metric | R23 |
| 9 | 47K 47k | R_0603_1608Metric | R24, R27, R29, R53, R55, R56, R59, R60 +1 |
| 1 | 82K 82k | R_0603_1608Metric | R25 |
| 1 | 47K 100k | R_0603_1608Metric | R28 |
| 4 | 8K2 8k2 | R_0603_1608Metric | R30, R33, R44, R46 |
| 1 | 8K2 8k2 | R_0805_2012Metric | R37 |
| 2 | 100 | R_0603_1608Metric | R38, R40 |
| 1 | 1k | R_0603_1608Metric | R41 |
| 1 | 4K7 2k | R_0603_1608Metric | R45 |
| 2 | 51 | R_0805_2012Metric | R52, R63 |
| 1 | 82K 100k | R_0603_1608Metric | R64 |
Z3340 VCO design files
The KiCad project lives in the brer-rabbit/zoxnoxious repository on GitHub; these links point at the commit this page was built from.
Z3340 VCO: common questions
How big is the Z3340 VCO PCB?
The Z3340 VCO measures 80 × 80 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Z3340 VCO?
139 components, from 58 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Z3340 VCO design files?
From the brer-rabbit/zoxnoxious repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Z3340 VCO design in my own project?
Yes, under the terms of its GPL-3.0 license, which brer-rabbit chose for the repository.
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