HardLabs

PMOD2PSRAM

kelu124·oshmri·hardware/8.MOD_PSRAM/PMOD2PSRAM(20240219)/PMOD2PSRAM.kicad_pcb

PMOD2PSRAM PCB layout, top view — open source board by kelu124

About the PMOD2PSRAM PCB

PMOD2PSRAM is an open source PCB design by kelu124, published on GitHub. It is a 2-layer board measuring 18.8 × 16.3 mm, with 4 components from 4 distinct parts.

Other key parts include the APS6404L-3SQR-SN. By type, the board carries 1 IC, 1 connector, 1 capacitor and 1 resistor.

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)…

PMOD2PSRAM, from the project README
From the project README

Main components on the PMOD2PSRAM

APS6404L-3SQR-SN

PMOD2PSRAM bill of materials (BOM)

4 components, 4 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
APS6404L-3SQR-SN
IC1
1
AMPHENOL_132357-11
Conn_02x06_Odd_Even
J1
1
100NF
100nF
C1
1
10K
R1

PMOD2PSRAM design files

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

PMOD2PSRAM: common questions

How big is the PMOD2PSRAM PCB?

The PMOD2PSRAM measures 18.8 × 16.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PMOD2PSRAM?

4 components, from 4 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 PMOD2PSRAM 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 PMOD2PSRAM 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.

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