Raspberry Pi High-Speed AD/DA

2-channel simultaneous AD/DA conversion with up to 1 MSamp/s

Henning Paul

Following Follow project

Liked Like project

Become a Hackaday.io member

Just one more thing

To make the experience fit your profile, pick a username and tell us what interests you.

OK, I'm done! Skip

Similar projects worth following

View Gallery

Description

This project adds a 2-channel A/D converter and a 2-channel D/A-converter to the Raspberry Pi using the SPI interface, achieving up to 1 MSamp/s conversion rate. This enables the use as a digital scope as well as hooking up a transceiver to turn the RPi into an SDR.

Details

Schematics and layout files will be provided at a later point in time.

Software interfacing through the spidev interface.

GNU Radio integration is planned.

Components

1 × Raspberry Pi B
1 × Analog Devices AD7352 A/D converter
1 × Analog Devices AD5415 D/A converter
1 × 74VHC glue logic
1 × dual and quad OpAmps

View all 6 components

Discussions

James Newton wrote 02/09/2016 at 01:36

See @esot.eric's SDRAM thing project.

Are you sure? yes | no

Eric Hertz wrote 02/09/2016 at 18:34

Woot! Thanks for thinking of my project, James!

Not sure it's quite the same thing, this project looks to be capable of *real-time* D->A (and A->D?), whereas sdramThing is much more about sample/repeat of a lot of data in bursts.

However, you got me thinking... maybe it doesn't need to be limited to AVRs, maybe even an RPi, hmm... Thanks, yo!

Are you sure? yes | no

James Newton wrote 02/09/2016 at 19:42

But they are limited to 1MS/S and have a goal of making a scope. Your sdram thing would make it a two step process: 1. Capture the analog data into the sdram at max speed (like 20-30MHz) then 2. slowly pull it out into the Pi at e.g. 1MHz and display it.

Are you sure? yes | no

Similar Projects

Setting up RFID on a Raspberry Pi using Microsoft IOT Core.

Raspberry Pi High-Speed AD/DA

Description

Details

Components

Discussions

Similar Projects

RFID on Raspberry Pi

Game Boy Pi

The best Raspberry Pi projects for beginners

The best operating Systems for Raspberry Pi

Raspberry Pi High-Speed AD/DA

Become a Hackaday.io member

Just one more thing

Description

Details

Components

Enjoy this project?

Discussions

Become a Hackaday.io Member

Similar Projects

RFID on Raspberry Pi

Game Boy Pi

The best Raspberry Pi projects for beginners

The best operating Systems for Raspberry Pi

Does this project spark your interest?

Report project as inappropriate

Send message

Remove Member