2 layers55 × 80 mm
MixedSignalKicad
republicofmakers/HW-KICAD-MCU-STM32-External-ADC-DAC
Mixed Signal Hardware Design with Kicad
125 parts1MIT
4 layers60 × 70 mm
Mixedsignal
npgo22/mixedsignalA follow-along of Philip Salmony's Mixed-Signal Hardware Design with KiCad
- Size
- 60 × 70 mm
- Copper layers
- 4
- Thickness
- 1.59 mm
- Parts
- 114
- Nets
- 95
- Pads
- 345
- Tracks, vias
- 559, 407
- Pours
- 25
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 15 Sep 2025
- Updated
- 15 Sep 2025
Overview
Mixedsignal is an open-source printed circuit board by npgo22, from the npgo22/mixedsignal repository on GitHub. It is a 4-layer board of 60 × 70 mm with 114 parts on 95 nets, routed with 559 tracks and 407 vias.
It is built around the STM32F103CBT6, ADC141S626CIMM/NOPB and DAC7563SDGSR, with the TLV62569DBV, HT7533-1(SOT89-3) and USBLC6-2SC6 among its other parts. Its parts include 45 capacitors, 36 resistors, 11 ICs, 9 diodes and 4 connectors. It belongs with the STM32 boards of this library.
Main components
9
STM32F103CBT6
LQFP-48(7x7)-40℃~+85℃ 128KB 12bit 20KB 2V~3.6V 32 Bit 37 72MHz ARM Cortex-M3 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
ADC141S626CIMM/NOPB
VSSOP-10-0.5mm-40℃~+85℃ 0.95LSB 1 14 2.7V~5.5V 3uA 50kHz、250kHz 82dB 900kHz~4.5MHz External SAR SPI Yes VSSOP-10-0.5mm Analog to Digital Converters (ADC) ROHSTexas InstrumentsAnalog To Digital Converters (ADC)DAC7563SDGSR
VSSOP-10-0.5mm-40℃~+125℃ 0.5LSB 10us 12 2 2.7V~5.5V Integrated buffer、Power-on reset、Power-down mode、Programmable gain、Built-in reference source SPI、QSPI、MICROWIRE Voltage Buffer VSSOP-10-0.5mm Digital to Analog Converters (DAC) ROHSTexas InstrumentsDigital To Analog Converters (DACs)
TLV62569DBV
SOT-23-5-40℃~+125℃@(TJ) 1 1.5MHz 2.5V~5.5V 2A 600mV~5.5V Adjustable Buck Buck Built-in Yes SOT-23-5 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
HT7533-1(SOT89-3)
SOT-89-3-40℃~+125℃ 1 250mA 2uA 3.3V 40V 550mV@(100mA) Fixed Over Current Protection、Short Circuit Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSHEERMICRUncategorised
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
PESD3V3L1BA,115
SOD-323ESD And Surge Protection (TVS/ESD)HXY MOSFET
DOSIN-801-0031
插件-55℃~+155℃ 1 3GHz 75Ω BNC Board Side Elbow 插件 Coaxial Connectors (RF) ROHSdosinconnCoaxial Connectors (RF)
CMF3216F-900-2P-T
SMD-4P,3.2x1.6mm-40℃~+85℃ 10MΩ 2 300mΩ 400mA 50V 90Ω@100MHz SMD-4P,3.2x1.6mm Common Mode Filters ROHSHYHONGYEXCommon Mode Filters
README
READMEA follow-along of Philip Salmony's Mixed-Signal Hardware Design with KiCad
Parts
114| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 100n | Capacitor_SMD:C_0402_1005Metric | C108, C202, C204, C205, C206, C207, C209, C212, C304, C305, C307, C308, C310, C314, C401, C406 |
| 9 | 1k | Resistor_SMD:R_0402_1005Metric | R103, R104, R105, R200, R201, R202, R301, R308, R309 |
| 7 | 10u | Capacitor_SMD:C_0603_1608Metric | C201, C300, C301, C303, C306, C311, C400 |
| 7 | PESD3V3L1BA,115 | user:SOD-323_L1.7-W1.3-LS2.5-BI-1 | D201, D202, D203, D204, D205, D300, D400 |
| 6 | 49R9 | Resistor_SMD:R_0402_1005Metric | R207, R208, R209, R210, R300, R405 |
| 5 | 1u | Capacitor_SMD:C_0603_1608Metric | C100, C101, C210, C211, C402 |
| 5 | 22u | Capacitor_SMD:C_0805_2012Metric | C102, C103, C104, C105, C107 |
| 4 | 10k | Resistor_SMD:R_0402_1005Metric | R203, R204, R206, R401 |
| 4 | 150p | Capacitor_SMD:C_0402_1005Metric | C302, C312, C315, C404 |
| 4 | 1n | Capacitor_SMD:C_0402_1005Metric | C309, C313, C403, C405 |
| 4 | MCP6001-OT | Package_TO_SOT_SMD:SOT-23-5 | U102, U301, U303, U401 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 0R | Resistor_SMD:R_0402_1005Metric | R205, R307, R400 |
| 3 | 22k | Resistor_SMD:R_0402_1005Metric | R102, R305, R403 |
| 2 | 10p | Capacitor_SMD:C_0402_1005Metric | C200, C203 |
| 2 | 12k | Resistor_SMD:R_0402_1005Metric | R306, R404 |
| 2 | 2M2 | Resistor_SMD:R_0402_1005Metric | R302, R303 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R212, R213 |
| 2 | 6k8 | Resistor_SMD:R_0402_1005Metric | R304, R402 |
| 2 | DOSIN-801-0031 | user:BNC-TH_DOSIN-801-0030 | J300, J400 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R101 |
| 1 | 10R | Capacitor_SMD:C_0805_2012Metric | R100 |
| 1 | 10n | Resistor_SMD:R_0402_1005Metric | L200 |
| 1 | 10n | Capacitor_SMD:C_0402_1005Metric | C208 |
| 1 | 10n | Inductor_SMD:L_0402_1005Metric | L100 |
| 1 | 16MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y200 |
| 1 | 1k5 | Resistor_SMD:R_0402_1005Metric | R211 |
| 1 | 2x5x1.27mm | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical_SMD | J200 |
| 1 | 68u | user:IND-SMD_L7.3-W6.8 | L101 |
| 1 | ADC141S626CIMM/NOPB | user:VSSOP-10_L3.0-W3.0-P0.50-LS4.9-BL | U302 |
| 1 | CMF3216F-900-2P-T | user:FILTER-SMD_3216-4P-L3.2-W1.6-BL | L201 |
| 1 | DAC7563SDGSR | user:VSSOP-10_L3.0-W3.0-P0.50-LS4.9-BL | U400 |
| 1 | DNP | Capacitor_SMD:C_0402_1005Metric | C106 |
| 1 | GREEN | LED_SMD:LED_0603_1608Metric | D100 |
| 1 | HT7533-1-SOT89 | Package_TO_SOT_SMD:SOT-89-3 | U101 |
| 1 | LTST-C19HE1WT_C458749 | LED_SMD:LED-ARRAY-SMD_4P-L1.6-W1.6-TL-CW | D200 |
| 1 | REF31Q1 | Package_TO_SOT_SMD:SOT-23 | U300 |
| 1 | STM32F103CBT6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U200 |
| 1 | TLV62569DBV | Package_TO_SOT_SMD:SOT-23-5 | U100 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U201 |
| 1 | USB_C_Receptacle_USB2.0_16P | user:USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J201 |
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Questions
How big is the Mixedsignal PCB?
It measures 60 × 70 mm and has 4 copper layers, 1.59 mm thick.
What parts does the Mixedsignal use?
114 parts, built around the STM32F103CBT6, ADC141S626CIMM/NOPB, DAC7563SDGSR and TLV62569DBV. 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 Mixedsignal KiCad files?
From the npgo22/mixedsignal repository on GitHub, at the commit this page was made from: the board is mixedsignal.kicad_pcb and its schematic ADC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mixedsignal design in my own project?
Its repository states no licence, so its author keeps all rights: ask npgo22 before reusing the design.