SmallDSPMicro
About the SmallDSPMicro PCB
SmallDSPMicro is an open source STM32 PCB design by Gemuesesaft, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 100 × 100 mm, with 284 components from 49 distinct parts.
Its main chip is the STM32F030C8T6, from the STM32 family. Other key parts include the ADAU1467WBCPZ300, ADM811TARTZ-REEL, M95M01-RMN6TP, LM317AG-TN3-R and NE5532DR. By type, the board carries 117 capacitors, 89 resistors, 24 connectors, 21 diodes, 15 ICs and 5 inductors.
It belongs with the audio designs in this gallery.
From the project
a small, modular and affordable DSP Module
The goal of this Project is to create a line-up of small DSP modules, centred around an Analog Devices ADAU1463/67. This Chip is easy to program with Sigma Studio, a node based development environment and pretty powerful for its price.
Current status: - Dual: Rev 1.1: Layout finished, functionality has to be validated. - Maxi: Rev 1.0 functional, layout of rev 2.0 finished and production ready, has to be evaluated. AES17 audio measurements of rev 1.0 available. - Mini: Nothing done yet. - Micro: Nothing done yet. - Digi: Nothing done yet.
Main components on the SmallDSPMicro
SmallDSPMicro bill of materials (BOM)
284 components, 49 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ADAU1467WBCPZ300 ADAU1467 Analog Devices | ADAU1463 | U1 |
| 1 | ADM811TARTZ-REEL ADM811 Analog Devices | SOT-143_Handsoldering | U2 |
| 1 | M95M01-RMN6TP M95M01-R STMicroelectronics | SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 2 | LM317AG-TN3-R LM317_TO-252 UTC(Unisonic Tech) | TO-252-2 | U4, U5 |
| 1 | NE5532DR PL123-09OC Texas Instruments | TSSOP-16_4.4x5mm_P0.65mm | U6 |
| 8 | AK4619VN AK4619 AKM(Asahi Kasei Microdevices) | QFN-32-1EP_5x5mm_P0.5mm_EP3.7x3.7mm_ThermalVias | U7, U8, U9, U10, U11, U12, U13, U14 |
| 1 | STM32F030C8T6 STM32F030C8Tx ST Microelectronics | LQFP-48_7x7mm_P0.5mm | U15 |
| 1 | NSS1C300ET4G onsemi | TO-252-2 | Q1 |
| 3 | 2N7002 Jiangsu Changjing Electronics Technology Co., Ltd. | SOT-23 | Q2, Q3, Q4 |
| 1 | 830105957509 Würth Elektronik | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | X50328MSB2GI 8MHz YXC | Crystal_SMD_5032-2Pin_5.0x3.2mm | Y2 |
| 2 | - Header - | PinHeader_1x04_P1.27mm_Vertical | J1, J2 |
| 8 | - Header - | PinHeader_1x03_P1.27mm_Vertical | J3, J4, J5, J6, J7, J8, J9, J10 |
| 1 | 61201021721 Programming Würth Electronik | IDC-Header_2x05_P2.54mm_Horizontal | J11 |
| 1 | B4P-VH JST | JST_VH_B4P-VH_1x04_P3.96mm_Vertical | J12 |
| 4 | T821120A1S100CEU IDC Amphenol | IDC-Header_2x10_P2.54mm_Vertical | J13, J15, J17, J19 |
| 4 | 75869-302LF IDC Amphenol | IDC-Header_2x07_P2.54mm_Vertical | J14, J16, J18, J20 |
| 3 | - Header - | PinHeader_1x02_P1.27mm_Vertical | J21, J22, J24 |
| 1 | 20021111-00014T1LF Header Amphenol FCI | PinHeader_2x07_P1.27mm_Vertical | J23 |
| 1 | - Jumper - | PinHeader_1x03_P2.54mm_Vertical | JP1 |
Show 29 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | EG4208A SW_4PDT E-Switch | EG4208 | SW1 |
| 2 | TS-1187A-B-A-B XKB Connectivity | TS-1187A-B-A-B | SW2, SW3 |
| 3 | 5019 TestPoint Keystone | TestPoint_Keystone_5019_Minature | TP1, TP2, TP3 |
| 18 | P6SMB6.8CA/TR13 P6SMB6.8CA Brightking | D_SMB | D1, D2, D3, D4, D5, D6, D7, D8 +10 |
| 1 | - LED - | PinHeader_1x02_P1.27mm_Vertical | D13 |
| 2 | 19-217/BHC-ZL1M2RY/3T LED Everlight Elec | LED_0603_1608Metric | D14, D15 |
| 5 | 78279220601 600R@100MHz Würth Elektronik | L_0805_2012Metric | FB1, FB2, FB3, FB4, FB5 |
| 45 | CL05B104KB54PNC 100n Samsung Electro-Mechanics | C_0402_1005Metric | C1, C2, C5, C19, C22, C26, C29, C31 +37 |
| 1 | 0402B151K500NT 150p FH (Guangdong Fenghua Advanced Tech) | C_0402_1005Metric | C3 |
| 1 | GRM1885C1H562JA01D 5n6 Murata Electronics | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4 |
| 2 | 0402CG270J500NT 27p FH (Guangdong Fenghua Advanced Tech) | C_0402_1005Metric | C6, C7 |
| 33 | CL10A106MA8NRNC 10u Samsung Electro-Mechanics | C_0603_1608Metric | C8, C24, C33, C37, C39, C41, C44, C49 +25 |
| 9 | CL21B105KBFNNNE 1u Samsung Electro-Mechanics | C_0805_2012Metric | C9, C10, C11, C12, C13, C14, C15, C16 +1 |
| 4 | CL05A105KA5NQNC 1u Samsung Electro-Mechanics | C_0402_1005Metric | C18, C21, C25, C28 |
| 4 | CL05B103KB5NNNC 10n Samsung Electro-Mechanics | C_0402_1005Metric | C20, C23, C27, C30 |
| 16 | CL10A475KO8NNNC 4u7 Samsung Electro-Mechanics | C_0603_1608Metric | C54, C57, C62, C63, C64, C71, C72, C73 +8 |
| 2 | 0402CG330J500NT 33p FH (Guangdong Fenghua Advanced Tech) | C_0402_1005Metric | C116, C117 |
| 13 | 0402WGF1003TCE 100k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R1, R31, R57, R58, R61, R62, R65, R66 +5 |
| 12 | 0402WGF1002TCE 10k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R2, R27, R32, R73, R74, R75, R76, R77 +4 |
| 42 | 0402WGF330JTCE 33R UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R3, R4, R5, R6, R7, R8, R9, R10 +34 |
| 7 | 0402WGF1001TCE 1k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R28, R29, R30, R33, R37, R46, R47 |
| 1 | 0402WGF1000TCE 100R UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R35 |
| 1 | 0603WAF4301T5E 4k3 UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R36 |
| 2 | 0402WGF1201TCE 1k2 UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R38, R40 |
| 2 | 0603WAF2001T5E 2k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R39, R41 |
| 2 | 0603WAF820JT5E 82R UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R42, R43 |
| 2 | 0402WGF100KTCE 1R UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R44, R45 |
| 2 | 0402WGF2201TCE 2k2 UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R78, R81 |
| 3 | - TBD - | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R85, R87, R89 |
SmallDSPMicro design files
The KiCad project lives in the Gemuesesaft/SmallDSP repository on GitHub; these links point at the commit this page was built from.
SmallDSPMicro: common questions
What microcontroller does the SmallDSPMicro use?
The SmallDSPMicro is built around the STM32F030C8T6, from the STM32 family.
How big is the SmallDSPMicro PCB?
The SmallDSPMicro measures 100 × 100 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the SmallDSPMicro?
284 components, from 49 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 SmallDSPMicro design files?
From the Gemuesesaft/SmallDSP 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 SmallDSPMicro design in my own project?
Yes, under the terms of its GPL-3.0 license, which Gemuesesaft chose for the repository.
Can I test firmware for the SmallDSPMicro 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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