Mixed Signal Board
About the Mixed Signal Board
Mixed Signal Board is an open source STM32 PCB design by AhmedAbo-Eita, published on GitHub. It is a 4-layer board measuring 72.1 × 99 mm, with 116 components from 41 distinct parts.
Its main chip is the STM32F103C8T6, from the STM32 family. Other key parts include the REF3033AIDBZT, HT7533-1, TLV62569DBVR, MCP6001T-E/OT and USBLC6-2SC6. By type, the board carries 49 capacitors, 37 resistors, 11 ICs, 6 diodes, 4 connectors and 3 inductors.
It belongs with the power & battery and usb & debug tools designs in this gallery.
From the project
A collection of my hardware design projects including schematics, PCB layouts, simulations and design documentation for embedded systems and electronic circuits.
# Mixed Signal Acquisition & Generation Board
A high-precision, 4-layer Mixed-Signal PCB designed for high-fidelity analog acquisition and precision waveform generation.
The Mixed Signal Board is a professional-grade hardware design project developed as part of the FEDEVEL Academy Advanced PCB Design Course.
The board demonstrates industry best practices for mixed-signal design, high-resolution data acquisition, precision signal generation, low-noise power delivery, and high-frequency noise mitigation. It interfaces an STM32 ARM Cortex-M3 microcontroller with isolated analog front-ends…
Main components on the Mixed Signal Board
Mixed Signal Board bill of materials (BOM)
116 components, 41 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | REF3033AIDBZT | SOT95P237X112-3N | U1 |
| 1 | HT7533-1 | SOT23_HT7533-1_HLT-M | U100 |
| 1 | TLV62569DBVR | SOT-23-5 | U101 |
| 4 | MCP6001T-E/OT | SOT-23-5 | U102, U301, U302, U401 |
| 1 | STM32F103C8T6 | LQFP-48_7x7mm_P0.5mm | U200 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U201 |
| 1 | ADC141S626CIMM_NOPB | SOP50P490X110-10N | U300 |
| 1 | DAC7563SDGSR | TSSOP-10_3x3mm_P0.5mm | U400 |
| 1 | X322516MLB4SI | OSC_X322516MLB4SI | Y200 |
| 1 | USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J200 |
| 1 | Conn_02x03_Counter_Clockwise | PinHeader_2x03_P2.54mm_Vertical | J201 |
| 2 | 031-5640-1010 | BNC_Amphenol_B6252HB-NPP3G-50_Horizontal | J300, J400 |
| 4 | PESD3V3L1BA_115 | D_SOD-323 | CR200, CR201, CR202, CR203 |
| 1 | SW_Push | SW_Push_1P1T_NO_E-Switch_TL3301NxxxxxG | SW1 |
| 1 | ASMB-MTB0-0A3A2 | LED_Avago_PLCC4_3.2x2.8mm_CW | D1 |
| 3 | LED | LED_0603_1608Metric | D100, D101, D102 |
| 2 | PESD3V3L1BA,115 | D_SOD-323 | D300, D400 |
| 2 | FerriteBead | R_0603_1608Metric | FB100, FB200 |
| 1 | L | L_TechFuse_SL0624 | L100 |
| 5 | 1uF | C_0805_2012Metric | C100, C101, C102, C104, C106 |
Show 21 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 22uF | C_1210_3225Metric | C103, C105, C107, C108 |
| 1 | DNP | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C109 |
| 15 | 100nF | C_0603_1608Metric | C201, C202, C203, C204, C206, C212, C301, C303 +7 |
| 7 | 10u | C_1206_3216Metric | C205, C300, C302, C304, C305, C307, C400 |
| 2 | 100nF | C_0805_2012Metric | C207, C309 |
| 4 | 1uF | C_0603_1608Metric | C208, C209, C210, C211 |
| 2 | 10pF | C_0603_1608Metric | C213, C214 |
| 4 | 150p | C_0603_1608Metric | C308, C313, C315, C404 |
| 5 | 1nF | C_0603_1608Metric | C311, C312, C402, C403, C405 |
| 1 | FRC1210F10R0TS 10R | R_1206_3216Metric | R100 |
| 3 | 100K | R_0603_1608Metric | R101, R105, R106 |
| 3 | 22k | R_0603_1608Metric | R102, R306, R403 |
| 10 | 1K | R_0603_1608Metric | R103, R104, R107, R206, R207, R208, R210, R302 +2 |
| 2 | 5k1 | R_0603_1608Metric | R200, R201 |
| 4 | 33R | R_0603_1608Metric | R202, R203, R204, R405 |
| 5 | 10k | R_0603_1608Metric | R205, R209, R211, R212, R401 |
| 2 | 0R | R_0603_1608Metric | R300, R400 |
| 1 | 49R9 | R_0603_1608Metric | R301 |
| 2 | 2M2 | R_0603_1608Metric | R303, R304 |
| 2 | 6k8 | R_0603_1608Metric | R305, R402 |
| 2 | 12k | R_0603_1608Metric | R307, R404 |
Mixed Signal Board design files
The KiCad project lives in the AhmedAbo-Eita/Hardware_PCB_Designs repository on GitHub; these links point at the commit this page was built from.
Mixed Signal Board: common questions
What microcontroller does the Mixed Signal Board use?
The Mixed Signal Board is built around the STM32F103C8T6, from the STM32 family.
How big is the Mixed Signal Board?
The Mixed Signal Board measures 72.1 × 99 mm, has 4 copper layers and is 1.596 mm thick.
How many components are on the Mixed Signal Board?
116 components, from 41 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mixed Signal Board design files?
From the AhmedAbo-Eita/Hardware_PCB_Designs repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Mixed Signal Board design in my own project?
The repository has no license, so all rights stay with AhmedAbo-Eita. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Mixed Signal 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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