MICRO-OX Modulation Board
About the MICRO-OX Modulation Board
MICRO-OX Modulation Board is an open source STM32 PCB design by JordanAceto, published on GitHub under the CC-BY-4.0 license. It is a 4-layer board measuring 111.8 × 165.1 mm, with 231 components from 106 distinct parts.
Its main chip is the TL072, from the STM32 family. Other key parts include the LM311, SSI2130, 4013, LM324 and NE5532. By type, the board carries 82 resistors, 76 capacitors, 19 ICs, 10 switches, 7 diodes and 6 inductors.
It belongs with the audio designs in this gallery.
From the project
Monosynth with analog signal path and digital controls. SSI2130 VCOs and SSI2140 VCF.
Main components on the MICRO-OX Modulation Board
MICRO-OX Modulation Board bill of materials (BOM)
231 components, 106 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TL072 STM32L412K8Ux | QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U1 |
| 1 | TL072 VO0600T | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | TL072 SN74LV1T34DBV | SOT-23-5 | U3 |
| 1 | LM311 LM4040C-2.5 | SOT-23 | U4 |
| 1 | TL072 74HC4067PW | TSSOP-24_4.4x7.8mm_P0.65mm | U5 |
| 1 | SSI2130 74HC4067PW | TSSOP-24_4.4x7.8mm_P0.65mm | U6 |
| 2 | TL072 MCP6002-xSN | SOIC-8_3.9x4.9mm_P1.27mm | U7, U15 |
| 1 | SSI2130 DAC8162xDGSx | VSSOP-10_3x3mm_P0.5mm | U8 |
| 1 | 4013 DAC128S085CIMT | TSSOP-16_4.4x5mm_P0.65mm | U9 |
| 2 | TL072 | SOIC-8_3.9x4.9mm_P1.27mm | U10, U14 |
| 1 | TL072 74HC595 | SOIC-16_3.9x9.9mm_P1.27mm | U11 |
| 1 | LM324 SSI2130 | QFN-32-1EP_4x4mm_P0.4mm_EP2.9x2.9mm | U12 |
| 1 | NE5532 TL072 | SOIC-8_3.9x4.9mm_P1.27mm | U13 |
| 1 | LM4040C-2.5 | SOT-23 | U801 |
| 1 | L78L05_SOT89 | SOT-89-3 | U1001 |
| 1 | L78L05_SOT89 L79L05_SOT89 | SOT-89-3 | U1002 |
| 1 | L79L05_SOT89 L78L33_SOT89 | SOT-89-3 | U1003 |
| 2 | MMBT3904 | SOT-23 | Q501, Q801 |
| 1 | 32_768KHZ | Crystal_SMD_MicroCrystal_CC7V-T1A-2Pin_3.2x1.5mm | Y301 |
| 1 | MOD_BOARD_EXT_CON | 16_pin_IDC_header | J1 |
Show 86 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | VCO_BOARD_CON | 40_pin_IDC_header | J2 |
| 1 | VCF_BOARD_CON | 34_pin_IDC_header | J3 |
| 1 | power_entry | 10_pin_IDC-Header | J4 |
| 1 | SWD_header | PinHeader_1x04_P2.54mm_Vertical | J301 |
| 15 | 100k | Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV401, RV402, RV403, RV404, RV405, RV406, RV407, RV408 +7 |
| 3 | 100k | Bourns_PTV09 | RV409, RV410, RV411 |
| 5 | 5k | Potentiometer_Bourns_3296W_Vertical | RV601, RV602, RV803, RV804, RV805 |
| 1 | 5511M12 | E_Switch_5511M12 | SW301 |
| 8 | E-Switch_EG2301B | E-Switch_EG2301 | SW501, SW502, SW503, SW504, SW505, SW506, SW507, SW801 |
| 1 | SR1712F-0204 | SR1712F_rotary_switch | SW802 |
| 2 | 1N4148W | D_SOD-123 | D301, D501 |
| 1 | 1N4148W LED | LED_D3.0mm | D701 |
| 4 | LED | LED_D3.0mm | D702, D703, D704, D705 |
| 4 | 1k@100MHz | L_0805_2012Metric | FB301, FB302, FB303, FB304 |
| 2 | 100R @ 100MHz | L_0805_2012Metric | FB1001, FB1002 |
| 1 | 10N 100n | C_0603_1608Metric | C301 |
| 1 | 10N 4p3 | C_0603_1608Metric | C302 |
| 1 | 4p3 | C_0603_1608Metric | C303 |
| 5 | 100P 100n | C_0603_1608Metric | C304, C402, C403, C404, C501 |
| 2 | 220N 100n | C_0603_1608Metric | C305, C602 |
| 3 | 10U 100n | C_0603_1608Metric | C306, C1005, C1006 |
| 3 | 1u | C_0805_2012Metric | C307, C601, C614 |
| 6 | 10u | C_0805_2012Metric | C308, C310, C604, C610, C624, C805 |
| 19 | 100n | C_0603_1608Metric | C309, C311, C401, C405, C406, C407, C408, C409 +11 |
| 2 | 100P 10n | C_0603_1608Metric | C603, C801 |
| 4 | 1n | C_0603_1608Metric | C605, C606, C607, C608 |
| 3 | 10n | C_0603_1608Metric | C611, C615, C617 |
| 1 | 820p | C_0603_1608Metric | C620 |
| 1 | 2n2 | C_0603_1608Metric | C621 |
| 1 | 5n6 | C_0603_1608Metric | C622 |
| 1 | 10P 100n | C_0603_1608Metric | C701 |
| 1 | 100P 47n COG | C_0805_2012Metric | C802 |
| 2 | 10P 100p | C_0603_1608Metric | C803, C901 |
| 3 | 100p | C_0603_1608Metric | C804, C902, C903 |
| 2 | 100N 10u | CP_Radial_D6.3mm_P2.50mm | C1001, C1002 |
| 2 | 100N 470n | C_0805_2012Metric | C1003, C1004 |
| 1 | 100N 2u2 | C_0805_2012Metric | C1007 |
| 9 | 100N 100n | C_0603_1608Metric | C1008, C1009, C1010, C1011, C1012, C1013, C1014, C1017 +1 |
| 2 | 470N 100n | C_0603_1608Metric | C1015, C1016 |
| 2 | 220 | R_0603_1608Metric | R301, R304 |
| 7 | 10k | R_0603_1608Metric | R302, R303, R624, R809, R815, R822, R825 |
| 1 | 22 | R_0603_1608Metric | R305 |
| 1 | 20K 10 | R_0603_1608Metric | R306 |
| 1 | 20K 220 | R_0603_1608Metric | R307 |
| 1 | 10K 10k | R_0603_1608Metric | R308 |
| 1 | 470K 10k | R_0603_1608Metric | R309 |
| 1 | 200K 5k6 | R_0603_1608Metric | R401 |
| 1 | 33K 10k | R_0603_1608Metric | R402 |
| 7 | 100K 100k | R_0603_1608Metric | R502, R503, R807, R901, R902, R904, R905 |
| 5 | 100K 10k | R_0603_1608Metric | R504, R505, R611, R615, R903 |
| 3 | 1M | R_0603_1608Metric | R507, R620, R813 |
| 2 | 100K 1k | R_0603_1608Metric | R601, R606 |
| 1 | 270K 1k | R_0603_1608Metric | R602 |
| 4 | 1k | R_0603_1608Metric | R603, R604, R618, R828 |
| 1 | 100 1k | R_0603_1608Metric | R605 |
| 1 | 120K 1k | R_0603_1608Metric | R607 |
| 1 | 820 | R_0603_1608Metric | R608 |
| 1 | 100K 3k9 | R_0603_1608Metric | R609 |
| 1 | 10K 20k | R_0603_1608Metric | R610 |
| 1 | 100K 68k | R_0603_1608Metric | R612 |
| 1 | 30K 47k | R_0603_1608Metric | R613 |
| 2 | 20k | R_0603_1608Metric | R614, R826 |
| 2 | 47k | R_0603_1608Metric | R616, R811 |
| 1 | 6k8 | R_0603_1608Metric | R617 |
| 6 | 100k | R_0603_1608Metric | R619, R622, R808, R814, R816, R818 |
| 1 | 18k | R_0603_1608Metric | R621 |
| 1 | 330k | R_0603_1608Metric | R623 |
| 1 | 100K 4k7 | R_0603_1608Metric | R701 |
| 1 | 220K 4k7 | R_0603_1608Metric | R702 |
| 1 | 330 4k7 | R_0603_1608Metric | R703 |
| 1 | 68K 4k7 | R_0603_1608Metric | R704 |
| 3 | 4k7 | R_0603_1608Metric | R705, R821, R824 |
| 2 | 100K 20k | R_0603_1608Metric | R801, R802 |
| 1 | 33K 100k | R_0603_1608Metric | R803 |
| 1 | 33K 27k | R_0603_1608Metric | R804 |
| 1 | 330 150k | R_0603_1608Metric | R805 |
| 1 | 330 51k | R_0603_1608Metric | R806 |
| 1 | 270k | R_0603_1608Metric | R810 |
| 1 | 270 | R_0603_1608Metric | R812 |
| 2 | 200k | R_0603_1608Metric | R817, R819 |
| 1 | 3k9 | R_0603_1608Metric | R820 |
| 1 | 12k | R_0603_1608Metric | R823 |
| 1 | 56k | R_0603_1608Metric | R827 |
| 2 | 10K 100k | R_0603_1608Metric | R906, R907 |
| 1 | 12K 100k | R_0603_1608Metric | R908 |
| 1 | 12K 33k | R_0603_1608Metric | R909 |
MICRO-OX Modulation Board design files
The KiCad project lives in the JordanAceto/micro_ox repository on GitHub; these links point at the commit this page was built from.
MICRO-OX Modulation Board: common questions
What microcontroller does the MICRO-OX Modulation Board use?
The MICRO-OX Modulation Board is built around the TL072, from the STM32 family.
How big is the MICRO-OX Modulation Board?
The MICRO-OX Modulation Board measures 111.8 × 165.1 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the MICRO-OX Modulation Board?
231 components, from 106 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 MICRO-OX Modulation Board design files?
From the JordanAceto/micro_ox 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 MICRO-OX Modulation Board design in my own project?
Yes, under the terms of its CC-BY-4.0 license, which JordanAceto chose for the repository.
Can I test firmware for the MICRO-OX Modulation Board without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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