1.5-3GHz RF down-converter for RTL-SDR
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Datasheets Almost finished schematics, based on ATSAMD20E MCU Dec 27, 2016
Firmware
Footprints Finished schematics Jan 15, 2017
Resources
Schematics
sma_connectors Adding main components datasheets and starting schematics Sep 25, 2016
BOM.xlsx
Mixers.xls
README.md

README.md

Nigun (Melody)

RF down-converter for SDR

PURPOSE

Allow low-frequency SDR (mainly RTL-SDR) to recieve wireless signals in frequencies higher than 1500MHz

MAIN PROPERTIES

  • Dynamic LO - LO will be determined by the user and programmed by the MCU
  • Almost no filtering - will leave this challenge outside of this project scope
  • Power up and programming via micro-usb connector. Should be able to power up from a USB power-pack (but probably not from a computer port)
  • Highest RF frequency will be 3GHz
  • Product also features a VCO for signal-generation purposes. VCO support should be 200-2700MHz

DESIGN DETAILS

Can be found currently on http://slides.com/raziele/software-define-radio-4-5-6-7-8#/ All details should be updated here in the near future

CURRENT STATUS

PCB design. Planning on ordering first prototype until the end of January 2017

CREDITS

  • All those who were patient enough to teach, review, and answer my endless questions
  • Michele Perla and his HACK project - for the Atmel SAMD21E reference design

LICENSE

I haven't dealt with the licensing part yet, though it will probably be under CERN OHL v. 1.2. For now, please contact me for any licensing request.