We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.

« previous next »
Pages: [1]

Author Topic: Cypress CY22150 Programmable frequency generator  (Read 8704 times)

Offline ChrisSmolinski

  • Administrator
  • Marconi Class DXer
  • *****
  • Posts: 31152
    • Westminster, MD USA
    • View Profile
    • Black Cat Systems
Cypress CY22150 Programmable frequency generator
« on: November 14, 2013, 1650 UTC »
Woohoo! my first transmitter related post.  I got tired of hunting for crystals at hamfests. This isn't 1960, there must be a better way to control a transmitter's frequency. Turns out, there is:

http://hfunderground.com/blog/?p=215
Logged
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline moof

  • Full Member
  • ***
  • Posts: 223
    • View Profile
    • Email
Re: Cypress CY22150 Programmable frequency generator
« Reply #1 on: November 14, 2013, 2019 UTC »
KRONK NO LIKE SMD OR WRITE CODE!  KRONK PLUG CRYSTAL IN HOLES!
I was lost a quarter of the way in.  You can watch the auction sites and buy them a box at a time for 50 cents to a buck apiece.  I'm not quite a crystal hoarder.  Yet.
Logged

Offline redhat

  • DX Legend
  • ******
  • Posts: 1586
    • USA
  • Music is my drug.
    • View Profile
    • Email
Re: Cypress CY22150 Programmable frequency generator
« Reply #2 on: November 15, 2013, 1024 UTC »
We do live in the modern age of programmable oscillators.  Digikey can program these for free in single quantities for about $8. http://www.digikey.com/product-detail/en/CPPC4-HT5RT/CPPC4-HT5RT-ND/387814  Use a 74LS04 or something similar and it will direct drive a mosfet in say a grenade.  Phase noise specs aren't great, but few people will be doing stereo or DRM with them.

+-RH

Logged
Somewhere under the stars...
Airspy HF+, MLA-30/Mini-whip/Chi-Town Loop
Please send QSL's and reception reports to xfmshortwave [at] proton [d0t] me

Offline ff

  • Moderator
  • Sr. Member
  • *****
  • Posts: 443
    • Upstate NY
    • View Profile
Re: Cypress CY22150 Programmable frequency generator
« Reply #3 on: November 15, 2013, 1512 UTC »
Quote from: ChrisSmolinski on November 14, 2013, 1650 UTC
Woohoo! my first transmitter related post. 

Congratulations!  An excellent post, Chris - lots of food for thought here.  Unfortunately I'm kinda like moof these days.  My aging brain just does NOT like to learn new tech.  However, if you get something going with a PIC, I'd be quite interested.  I used to do MPASM a dozen or so years ago and could probably still stumble through it.  Thanks for the post!
Logged
Hailing from the upstate boondocks region of the progressive paradise which once was New York State

Offline redhat

  • DX Legend
  • ******
  • Posts: 1586
    • USA
  • Music is my drug.
    • View Profile
    • Email
Re: Cypress CY22150 Programmable frequency generator
« Reply #4 on: November 23, 2013, 0401 UTC »
Or if you like, you can always grind your own.

http://www.youtube.com/watch?v=j7CS4A8wB1E

+-RH
Logged
Somewhere under the stars...
Airspy HF+, MLA-30/Mini-whip/Chi-Town Loop
Please send QSL's and reception reports to xfmshortwave [at] proton [d0t] me

Offline thechoat

  • Sr. Member
  • ****
  • Posts: 405
    • Oklahoma
    • View Profile
    • Email
Re: Cypress CY22150 Programmable frequency generator
« Reply #5 on: November 26, 2013, 0008 UTC »
Ill take two Chris but youll have to program them lol.
Logged
Oklahoma
qsl to streetracerlx at gmail.com
Afedri SDR or Icom 746, home made OCF dipole

Offline ChrisSmolinski

  • Administrator
  • Marconi Class DXer
  • *****
  • Posts: 31152
    • Westminster, MD USA
    • View Profile
    • Black Cat Systems
Re: Cypress CY22150 Programmable frequency generator
« Reply #6 on: November 26, 2013, 0030 UTC »
Quote from: thechoat on November 26, 2013, 0008 UTC
Ill take two Chris but youll have to program them lol.

You could send the config commands via two pins on a parallel port. Do PCs still have those?

If I get the chance I want to put together a little PIC microcontroller code to configure frequency. As always, the issue is lack of time...
Logged
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

cmradio

  • Guest
Re: Cypress CY22150 Programmable frequency generator
« Reply #7 on: November 26, 2013, 0953 UTC »
No, this isn't 1960, but at least one doesn't have to be a goddamn computer scientist to plug in a crystal! :D

Peace!
Logged

Offline Kilokat7

  • Global Moderator
  • DX Legend
  • *****
  • Posts: 1450
    • West Michigan
    • View Profile
    • Kilokat7 DX
Re: Cypress CY22150 Programmable frequency generator
« Reply #8 on: November 26, 2013, 1427 UTC »
Real crystals glow in the dark!

Logged
PLS QSL kilokat7(at)gmail.com
Location: Western Michigan
Perseus SDR / DKAZ loops
1980s pirate off-air archive
West Michigan DX

Offline thechoat

  • Sr. Member
  • ****
  • Posts: 405
    • Oklahoma
    • View Profile
    • Email
Re: Cypress CY22150 Programmable frequency generator
« Reply #9 on: November 27, 2013, 0400 UTC »
Ooooooooo purdy...... :-*
Logged
Oklahoma
qsl to streetracerlx at gmail.com
Afedri SDR or Icom 746, home made OCF dipole

Offline redhat

  • DX Legend
  • ******
  • Posts: 1586
    • USA
  • Music is my drug.
    • View Profile
    • Email
Re: Cypress CY22150 Programmable frequency generator
« Reply #10 on: November 27, 2013, 0732 UTC »
Remember when they looked like this?

+-RH
Logged
Somewhere under the stars...
Airspy HF+, MLA-30/Mini-whip/Chi-Town Loop
Please send QSL's and reception reports to xfmshortwave [at] proton [d0t] me

cmradio

  • Guest
Re: Cypress CY22150 Programmable frequency generator
« Reply #11 on: November 27, 2013, 0849 UTC »
Quote from: redhat on November 27, 2013, 0732 UTC
Remember when they looked like this?

Yes, actually ;D

Got a 100KHz calibrator xtal in a bottle.

Peace!
Logged

Offline refmo

  • Marconi Class DXer
  • ********
  • Posts: 7823
    • Northeast Kentucky
    • View Profile
Re: Cypress CY22150 Programmable frequency generator
« Reply #12 on: November 27, 2013, 1256 UTC »
yes, cmradio - calibration crystal is the only crystal in a bottle that I recall having also, but I don't recall which radio had it, maybe Hallicrafters SX-100 [?].
Logged
Northeast Kentucky
Please eQSL to refmo[at]outlook[dot]com
Radios: Afedri AFE822x, Airspy HF+, RX-888, RSPdx, Tecsun PL880
Antennas: 700' Loop Skywire, Wellbrook ALA1530LN Loop, 400' Beverage, 34' Vertical, low dipoles on upper bands.

cmradio

  • Guest
Re: Cypress CY22150 Programmable frequency generator
« Reply #13 on: November 28, 2013, 0715 UTC »
I don't know, Refmo... my crystal was inherited from a late dear friend. He was a communication technician.

Peace!
Logged
Pages: [1]
« previous next »