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Dspod rp2350

emeb·dspod·dspod_rp2350/Hardware/dspod_rp2350.kicad_pcb

Dspod rp2350 PCB layout, top view — open source RP2040/RP2350 board by emeb

About the Dspod rp2350 PCB

Dspod rp2350 is an open source RP2040/RP2350 PCB design by emeb, published on GitHub under the MIT license. It is a 4-layer board measuring 26.4 × 41.7 mm, with 56 components from 26 distinct parts.

Its main chip is the RP2350_60QFN, from the RP2040/RP2350 family. Other key parts include the XC6222B331MR-G, NAU88C22, W25Q32JVZPIQ and APS6404L-3SQR-SN. By type, the board carries 26 capacitors, 12 resistors, 6 ICs, 5 connectors, 2 switches and 2 diodes.

It belongs with the audio designs in this gallery.

From the project

A family of boards for Eurorack DSP audio

The dspod_rp2350 is a daughterboard comprising an RP2350A MCU with 4MB Flash, 8MB PSRAM, USB and GPIO + audio I/O.

This board is a small 32-pin device with the following features:

RP2350 MCU - 68-pin QFN package - Dual-core Arm Cortex M33 or Hazard3 RISC-V CPUs - 520kB SRAM - USB, I2C, SPI, ADC, GPIO, PIO, etc on-chip USB-C connector, full-speed host/device Nuvoton NAU88C22 stereo codec Misc GPIO - SPI - I2C - GPIO * Four channels of 3.3V multiplexed A/D input

Dspod rp2350, from the project README
From the project README

Main components on the Dspod rp2350

RP2350_60QFNXC6222B331MR-GNAU88C22W25Q32JVZPIQAPS6404L-3SQR-SN

Dspod rp2350 bill of materials (BOM)

56 components, 26 distinct parts.

QtyPartRefs
1
RP2350_60QFN
U1
2
XC6222B331MR-G
U2, U3
1
NAU88C22
U4
1
W25Q32JVZPIQ
U5
1
APS6404L-3SQR-SN
U6
1
ABM10-167-12.000MHZ-T3
Y1
1
SWD
J1
1
Serial
J2
1
USB_C_Receptacle_USB2.0
J3
2
Conn_01x16
J4, J6
2
SW_Push
SW1, SW2
1
PMEG2005CT,215
D1
1
LED Green
D2
1
1k
FB1
1
3.3u
L1
2
4.7uf
C1, C2
2
12pf
C3, C4
13
0.1uf
C5, C7, C8, C9, C10, C11, C12, C13 +5
9
4.7uf
C6, C15, C17, C18, C19, C20, C21, C22 +1
3
1k
R1, R11, R12
Show 6 more
QtyPartRefs
1
33
R2
2
27.5
R3, R4
2
5k1
R5, R6
1
1M
R7
2
4k7
R8, R9
1
10k
R10

Dspod rp2350 design files

The KiCad project lives in the emeb/dspod repository on GitHub; these links point at the commit this page was built from.

Dspod rp2350: common questions

What microcontroller does the Dspod rp2350 use?

The Dspod rp2350 is built around the RP2350_60QFN, from the RP2040/RP2350 family.

How big is the Dspod rp2350 PCB?

The Dspod rp2350 measures 26.4 × 41.7 mm, has 4 copper layers and is 1.5313 mm thick.

How many components are on the Dspod rp2350?

56 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the Dspod rp2350 design files?

From the emeb/dspod repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Dspod rp2350 design in my own project?

Yes, under the terms of its MIT license, which emeb chose for the repository.

Can I test firmware for the Dspod rp2350 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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