4 layers26.4 × 41.7 mm
2 layers68.6 × 101.6 mm
Dspod module
emeb/dspod10A family of boards for Eurorack DSP audio
- Size
- 68.6 × 101.6 mm
- Copper layers
- 2
- Thickness
- 1.56 mm
- Parts
- 92
- Nets
- 81
- Pads
- 302
- Tracks, vias
- 571, 54
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 14 Sep 2025
- Updated
- 6 Oct 2026
Overview
Dspod module is an open-source printed circuit board by emeb, from the emeb/dspod repository on GitHub, published under the MIT licence. It is a 2-layer board of 68.6 × 101.6 mm with 92 parts on 81 nets, routed with 571 tracks and 54 vias.
It is built around the 74AHCT1G125SE, R-78E5.0-1.0 and MCP6004-E/P, with the BAT54S and MMBT3904 among its other parts. Its parts include 35 resistors, 26 capacitors, 13 connectors, 6 ICs and 3 diodes. It belongs with the audio and music boards of this library.
Main components
5
74AHCT1G125SE
SOT-353-40℃~+125℃ 1 1 4.5V~5.5V 4.7ns@5V,50pF 40uA 74AHCT 8mA 8mA Schmitt trigger Tri-State Unidirectional SOT-353 Buffers, Drivers, Receivers, Transceivers ROHSDiodes IncorporatedBuffers, Drivers, Receivers, Transceivers
R-78E5.0-1.0
SIP,11.6x7.5mm-40℃~+85℃ 1 10.2mm 11.6mm 1A 2200uF 300uA 50mVp-p 5V 7.5mm 7V~36V 850kHz 94% Short Circuit Protection、Automatic fault recovery Step-down type ±3% SIP,11.6x7.5mm DC-DC Power Modules ROHSYLPTECDC-DC Power Modules
MCP6004-E/P
PDIP-14-40℃~+125℃ 1.8V~6V 100uA 1MHz 1pA 1pA 23mA 28nV/√Hz@1kHz 2uV/℃ 4 4.5mV 600V/ms 76dB ESD protection Rail-to-Rail Input, Rail-to-Rail Output PDIP-14 Operational Amplifier ROHSMicrochip TechnologyOperational Amplifier
BAT54S
SOT-231 Pair Series Connection 1V@100mA 200mA 2uA@25V 30V 600mA SOT-23 Schottky Diodes ROHSMDDSchottky DiodesMMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
README
README.mddspod
dspod is a small ecosystem of audio DSP boards
The collection consists of the following hardware
- dspod_module - a motherboard / carrier that adapts the standard dspod pinout for Eurorack, including power, I/O level buffers and user interface.
- dspod_cv1800b - a daughterboard comprising a Sophgo/CVItek CV1800B Linux SoC with 64MB RAM, SD card interface, USB and GPIO + audio I/O.
- dspod_rp2350 - a daughterboard with a Raspberry Pi RP2350, 4MB flash, 8MB PSRAM, USB, GPIO and audio I/O.
- dspod_esp32s3 - a daughterboard with an ESP32 S3 processor, 4MB flash, 2MB PSRAM, USB, RF, GPIO and audio I/O.
- dspod_h7r3 - a daughterboard with an STM32H7R3V8 MCU, QSPI flash or PSRAM, USB, GPIO and audio I/O
- dspod_u3c5 - a daughterboard with an STM32U3C5RI MCU, QSPI PSRAM, USB, GPIO and audio I/O.
- dspod_up5k - a daughterboard with an iCE40UP5k FPGA, Flash, PSRAM, ADC, GPIO and audio I/O.
- dspod_stampp4 - a daughterboard with an ESP32 P4 MCU, 16MB flash, 32MB PSRAM, USB, GPIO and Audio I/O
Parts
92| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | AudioJack2_SwitchT | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J1, J2, J3, J4, J6, J7, J8, J9, J11, J13 |
| 8 | 100k | Resistor_SMD:R_0603_1608Metric | R2, R4, R6, R7, R20, R21, R24, R26 |
| 6 | 330pf | Capacitor_SMD:C_0603_1608Metric | C3, C4, C5, C6, C22, C23 |
| 5 | 0.1uf | Capacitor_SMD:C_0603_1608Metric | C1, C2, C18, C19, C26 |
| 4 | 0.01uf | Capacitor_SMD:C_0603_1608Metric | C7, C8, C24, C25 |
| 4 | 100 | Resistor_SMD:R_0603_1608Metric | R16, R17, R22, R23 |
| 4 | 10k | EMEB:Potentiometer_TT_P0915N | RV1, RV2, RV3, RV4 |
| 4 | 180 | Resistor_SMD:R_0603_1608Metric | R14, R15, R30, R31 |
| 4 | 1uf | Capacitor_SMD:CP_Elec_4x5.3 | C11, C12, C15, C16 |
| 4 | 20k | Resistor_SMD:R_0603_1608Metric | R12, R13, R18, R19 |
| 4 | 33k | Resistor_SMD:R_0603_1608Metric | R10, R11, R28, R29 |
| 4 | 49.9k | Resistor_SMD:R_0603_1608Metric | R3, R5, R25, R27 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R217, R218, R220 |
| 3 | 1uf | Capacitor_SMD:C_0603_1608Metric | C13, C14, C17 |
| 2 | 220 | Capacitor_SMD:C_0805_2012Metric | FB1, FB2 |
| 2 | 220pf | Capacitor_SMD:C_0603_1608Metric | C9, C10 |
| 2 | 60.4k | Resistor_SMD:R_0603_1608Metric | R8, R9 |
| 2 | 68pf | Capacitor_SMD:C_0603_1608Metric | C20, C21 |
| 2 | D | Diode_SMD:D_SMA | D1, D2 |
| 1 | 1.5k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 60k | Resistor_SMD:R_0603_1608Metric | R219 |
| 1 | 74AHCT1G125 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | BAT54S | Package_TO_SOT_SMD:SOT-23 | D201 |
| 1 | Conn_02x08_Odd_Even | EMEB:con16_2X8_S4_TEC | J5 |
| 1 | JST SH-4 (Qwiic) | EMEB:JST_SH_SM04B-SRSS-TB_04x1.00mm_Angled | J12 |
| 1 | LCD | EMEB:1.9_IPS_LCD | J10 |
| 1 | LM4040DBZ-5 | Package_TO_SOT_SMD:SOT-23 | U1 |
| 1 | MCP6004 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U2 |
| 1 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q201 |
| 1 | R-78E5.0-1.0 | Converter_DCDC:Converter_DCDC_RECOM_R-78E-0.5_THT | U3 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | TL074 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U5 |
| 1 | encoder_en11 | EMEB:ENC_11 | S1 |
| 1 | ~ | EMEB:dspod | U6 |
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Questions
How big is the Dspod module PCB?
It measures 68.6 × 101.6 mm and has 2 copper layers, 1.56 mm thick.
What parts does the Dspod module use?
92 parts, built around the 74AHCT1G125SE, R-78E5.0-1.0, MCP6004-E/P and BAT54S. 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 Dspod module KiCad files?
From the emeb/dspod repository on GitHub, at the commit this page was made from: the board is dspod_module/Hardware/dspod_module.kicad_pcb and its schematic dspod_cv1800b/Hardware/dspod_cv1800b.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dspod module 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).