HardLabs

PICO DAC2932

kelu124·oshmri·hardware/12.FastDAC/PICO_DAC2932(20240514)/PICO_DAC2932.kicad_pcb

PICO DAC2932 PCB layout, top view — open source RP2040/RP2350 board by kelu124

About the PICO DAC2932 PCB

PICO DAC2932 is an open source RP2040/RP2350 PCB design by kelu124, published on GitHub. It is a 2-layer board measuring 85.5 × 54 mm, with 42 components from 26 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the DAC2932PFBT. By type, the board carries 15 resistors, 14 capacitors, 9 connectors, 2 ICs and 2 inductors.

From the project

OpenSourceHardware - going to MRI

1 dual PMOD, 12ADCbits+1clk + 1SPI (without MISO): based on the AD8331+ADC+DAC from https://github.com/kelu124/lit3rick/ (altium source in hardware folder) . Connector in: SMA, with MD0100 to protect. Possible elements: AD8331 ADC: AD9629BCPZ-65: 12bits, DAC: MCP4812-E/MS

Only logic through PMOD: positivepulse, negativepulse, damp. Expose remaining IOs on a 2.54" rail on the PMOD board (with 3.3V and GND as well) External GPIOs for +HV, -HV, GND. Internal : Positive: 3.3V -> 5V booster ; Negative: -5V rail for example (not mandatory if simpler exists)…

PICO DAC2932, from the project README
From the project README

Main components on the PICO DAC2932

DAC2932PFBTPico

PICO DAC2932 bill of materials (BOM)

42 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
DAC2932PFBT
IC1
1
Pico
U1
1
AMPHENOL_132357-11
Conn_01x04
J1
3
22-23-2021
J2, J4, J6
2
613012243121
90122-0126
J3, J5
2
142-0701-801
AMPHENOL_132357-11
J7, J8
1
Conn_02x04_Odd_Even
J9
2
39OHM
L1, L2
4
100NF
100nF
C1, C2, C5, C11
2
10UF
100nF
C3, C4
1
18NF
100nF
C6
1
18PF
1nF
C7
1
10NF
1nF
C8
2
100NF
10nF
C9, C10
1
22PF
100nF
C12
1
1UF
47uF
C13
1
18PF
47uF
C14
1
49.9
R1
2
10K
49.9
R2, R3
2
100R
49.9
R4, R8
Show 6 more
QtyPartRefs
2
10K
4.7K
R5, R6
1
280R
49.9
R7
1
12K
19.6K
R9
1
510R
19.6K
R10
1
510R
4.7K
R11
4
10K
250
R12, R13, R14, R15

PICO DAC2932 design files

The KiCad project lives in the kelu124/oshmri repository on GitHub; these links point at the commit this page was built from.

PICO DAC2932: common questions

What microcontroller does the PICO DAC2932 use?

The PICO DAC2932 is built around the Pico, from the RP2040/RP2350 family.

How big is the PICO DAC2932 PCB?

The PICO DAC2932 measures 85.5 × 54 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PICO DAC2932?

42 components, from 26 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the PICO DAC2932 design files?

From the kelu124/oshmri repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the PICO DAC2932 design in my own project?

The repository has no license, so all rights stay with kelu124. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the PICO DAC2932 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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