4 layers
Stm aduio board
Papproni/Digital_guitar_effect
This repostiroy is created to work on a digital guitar effect which makes use of DSP algorythms, and hardware.
113 parts10MIT
4 layers66.1 × 75.8 mm
Stm audio board V3
Papproni/Digital_guitar_effect10This repostiroy is created to work on a digital guitar effect which makes use of DSP algorythms, and hardware.
- Size
- 66.1 × 75.8 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 149
- Nets
- 203
- Pads
- 535
- Tracks, vias
- 909, 360
- Pours
- 18
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 16 Sep 2023
- Updated
- 2 Mar 2024
Overview
Stm audio board V3 is an open-source printed circuit board by Papproni, from the Papproni/Digital_guitar_effect repository on GitHub, published under the MIT licence. It is a 4-layer board of 66.1 × 75.8 mm with 149 parts on 203 nets, routed with 909 tracks and 360 vias.
It is built around the MIC2920A-3.3WS-TR and L7809. Its parts include 80 capacitors, 31 resistors, 10 diodes, 8 ICs and 5 connectors. It belongs with the audio and music boards and the STM32 boards of this library.
Main components
2
MIC2920A-3.3WS-TR
SOT-223-40℃~+125℃@(Tj) 1 140uA 26V 3.3V 370mV@(250mA) 400mA 400uVrms Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMicrochip TechnologyVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
L7809
TO-220-20℃~+125℃@(Tj) 1 1.5A 2V@(1.0A) 35V 58uV 5mA 66dB@(120Hz) 9V Fixed Positive TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSPUOLOPVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
Parts
149| Qty | Value | Footprint | References |
|---|---|---|---|
| 35 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C5, C10, C11, C12, C14, C25, C30, C32, C33, C34, C35, C36, C54, C55, C102 +19 |
| 6 | R_Potentiometer | Potentiometer_THT:Potentiometer_Omeg_PC16BU_Vertical | RV1, RV2, RV3, RV4, RV5, RV6 |
| 5 | 2u2F | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C15, C69, C103, C104, C105 |
| 4 | 11k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15, R19, R30, R31 |
| 4 | 1N4148 | Diode_SMD:D_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D1, D2, D3, D5 |
| 4 | 5.6k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R16, R20, R27, R32 |
| 4 | 68p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C38, C39, C44, C45 |
| 4 | BAT42W-V | Diode_SMD:D_SOD-123 | D4, D6, D8, D9 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 3 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C16, C27, C48 |
| 3 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R18, R24 |
| 3 | 2.2nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C43, C47, C68 |
| 3 | 68n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C17, C18, C73 |
| 2 | 1.5k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14, R22 |
| 2 | 100R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R11 |
| 2 | 100uF | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C28, C70 |
| 2 | 10p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C19, C20 |
| 2 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C76, C77 |
| 2 | 1nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C24, C50 |
| 2 | 2.2uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C49 |
| 2 | 240R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R9 |
| 2 | 270p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C22, C40 |
| 2 | 2u2 | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C42, C46 |
| 2 | 3k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R13, R21 |
| 2 | 5.76k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R7 |
| 2 | 500k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R33 |
| 2 | 560p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C23, C41 |
| 2 | 604 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R17, R23 |
| 2 | 9pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C31, C37 |
| 2 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D10, D11 |
| 2 | MIC2920A-3.3WS-TR | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5, U9 |
| 2 | OP275 | Package_SO:SSOP-8_3.9x5.05mm_P1.27mm | U2, U4 |
| 2 | TDK MMZ1608R601ATD25 DB | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | FB3, FB4 |
| 1 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R26 |
| 1 | 100R NC | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 100pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C51 |
| 1 | 10uF tantal | Capacitor_Tantalum_SMD:CP_EIA-6032-28_Kemet-C_Pad2.25x2.35mm_HandSolder | C80 |
| 1 | 120p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C21 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R25 |
| 1 | 1k NC | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R12 |
| 1 | 22uF 50V poly | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C13 |
| 1 | 22uF tantal | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D_Pad2.25x2.55mm_HandSolder | C4 |
| 1 | 3.32k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10 |
| 1 | 39nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C67 |
| 1 | 47uF | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C29 |
| 1 | 47uF tantal | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D_Pad2.25x2.55mm_HandSolder | C26 |
| 1 | 47uf | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C71 |
| 1 | Audio_sig | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | Conn_01x01_taptempo | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J4 |
| 1 | Conn_01x03_pot_ext | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | L7809 | Package_TO_SOT_THT:TO-92_Inline | U6 |
| 1 | MP-K7805-500R3 | Package_TO_SOT_THT:TO-220-3_Vertical | U3 |
| 1 | Power conn | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | STM32H723ZGTx | Package_QFP:LQFP-144_20x20mm_P0.5mm | U7 |
| 1 | STlink | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | SW_SPST | Button_Switch_SMD:SW_SPST_TL3305A | SW1 |
| 1 | X1E0000210132 | Crystal:Crystal_SMD_SeikoEpson_TSX3225-4Pin_3.2x2.5mm_HandSoldering | Y2 |
| 1 | ~ | Package_QFP:LQFP-64_10x10mm_P0.5mm | U11 |
| 1 | ~ | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | 7660S1 |
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Questions
How big is the Stm audio board V3 PCB?
It measures 66.1 × 75.8 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Stm audio board V3 use?
149 parts, built around the MIC2920A-3.3WS-TR and L7809. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Stm audio board V3 KiCad files?
From the Papproni/Digital_guitar_effect repository on GitHub, at the commit this page was made from: the board is pcb/stm_audio_board_V3/stm_audio_board_V3.kicad_pcb and its schematic pcb/jack_io_board/jack_io_board/jack_io_board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Stm audio board V3 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).