Digital signal converter
About the Digital signal converter PCB
Digital signal converter is an open source STM32 PCB design by jadranm, published on GitHub. It is a 4-layer board measuring 160 × 108 mm, with 177 components from 42 distinct parts.
Its main chip is the STM32F411 BlackPill, from the STM32 family. Other key parts include the TEC3-2411UI, AMS1117-3.3, TBA1-0513E, TBA1-0511E and ISO7331C. By type, the board carries 102 capacitors, 27 ICs, 27 resistors, 6 diodes, 5 crystals and 4 test points.
From the project
Digital signal converter with 4 - 20 mA and 0 - 10 V input and output channels
Main components on the Digital signal converter
Digital signal converter bill of materials (BOM)
177 components, 42 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TEC3-2411UI | Converter_DCDC_TRACO_TEC3-24xxUI_THT | U1 |
| 5 | AMS1117-3.3 | SOT-223-3_TabPin2 | U2, U17, U18, U23, U24 |
| 2 | TBA1-0513E | Converter_DCDC_TRACO_TBA1-xxxxE_Single_THT | U3, U14 |
| 4 | TBA1-0511E | Converter_DCDC_TRACO_TBA1-xxxxE_Single_THT | U4, U8, U13, U22 |
| 4 | ISO7331C | SOIC-16W_7.5x10.3mm_P1.27mm | U5, U6, U9, U10 |
| 1 | DAC8750xRHA | Texas_RHA_VQFN-40-1EP_6x6mm_P0.5mm_EP4.6x4.6mm_ThermalVias | U7 |
| 1 | DAC81401PWR | Texas_PW0020A_TSSOP-20_4.4x6.5mm_P0.65mm | U11 |
| 1 | STM32F411 BlackPill | STM32F411_Black_Pill | U12 |
| 1 | ADS1110 | SOT-23-6 | U15 |
| 2 | ISO1540 | SOIC-8_3.9x4.9mm_P1.27mm | U16, U25 |
| 2 | LM7705 | VSSOP-8_3x3mm_P0.65mm | U19, U21 |
| 1 | LM8261 | SOT-23-5 | U20 |
| 1 | TSV911IDT | SOIC-8_3.9x4.9mm_P1.27mm | U26 |
| 1 | MCP3426Axx-xSN | SOIC-8_3.9x4.9mm_P1.27mm | U27 |
| 1 | Conn_01x03_Pin | PhoenixContact_GMSTBA_2,5_3-G-7,62_1x03_P7.62mm_Horizontal | X1 |
| 4 | Conn_01x02_Pin | PhoenixContact_GMSTBA_2,5_2-G-7,62_1x02_P7.62mm_Horizontal | X2, X3, X4, X5 |
| 1 | Conn_01x04_Pin | PinHeader_1x04_P1.27mm_Vertical | J5 |
| 1 | SW_DIP_x04 | SW_DIP_SPSTx04_Slide_9.78x12.34mm_W7.62mm_P2.54mm | SW1 |
| 4 | TestPoint | TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP0V24V1, TP3V3, TP5V1, TP24V1 |
| 1 | TestPoint | TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TPGND1 |
Show 22 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SS15 | D_2010_5025Metric_Pad1.52x2.65mm_HandSolder | D1 |
| 1 | BAV199DW | SOT-363_SC-70-6_Handsoldering | D2 |
| 1 | SMAJ15A | D_SMA | D3 |
| 3 | SMAJ12CA | D_SMA | D4, D5, D6 |
| 2 | 4.7u | L_1008_2520Metric_Pad1.43x2.20mm_HandSolder | L4, L5 |
| 1 | 10u | L_1008_2520Metric_Pad1.43x2.20mm_HandSolder | L6 |
| 56 | 100n | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C4, C5, C8, C10, C12, C15, C16 +48 |
| 2 | 4.7n | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C2, C3 |
| 4 | 100u | CP_Radial_D6.3mm_P2.50mm | C6, C7, C9, C11 |
| 1 | 1n | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C13 |
| 2 | 33u | CP_Radial_D6.3mm_P2.50mm | C14, C17 |
| 34 | 10u | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C18, C19, C28, C29, C38, C47, C48, C49 +26 |
| 1 | 100p | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C32 |
| 1 | 150p | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C52 |
| 1 | 470p | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C89 |
| 18 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R5, R8, R9, R10, R11 +10 |
| 1 | 13R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 1M 0.1% | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6 |
| 1 | 30k 0.1% | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | 220k 0.1% | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14 |
| 1 | 120R | R_1210_3225Metric | R18 |
| 4 | 100k | R_1210_3225Metric | R20, R21, R22, R28 |
Digital signal converter design files
The KiCad project lives in the jadranm/Digital-signal-converter repository on GitHub; these links point at the commit this page was built from.
- Layoutnapajanje1.kicad_pcb
- Schematicnapajanje1.kicad_sch
Digital signal converter: common questions
What microcontroller does the Digital signal converter use?
The Digital signal converter is built around the STM32F411 BlackPill, from the STM32 family.
How big is the Digital signal converter PCB?
The Digital signal converter measures 160 × 108 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Digital signal converter?
177 components, from 42 distinct parts. The full bill of materials is listed on this page.
Where can I download the Digital signal converter design files?
From the jadranm/Digital-signal-converter repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Digital signal converter design in my own project?
The repository has no license, so all rights stay with jadranm. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Digital signal converter 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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