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Electronics => FPGA => Topic started by: Diabolo on July 16, 2017, 06:00:32 pm

Title: New generateur DDS with Altera cyclone IV.
Post by: Diabolo on July 16, 2017, 06:00:32 pm
Hello,

Here is the new Feeltech DDS generator equipped with an Altera Cyclone IV clocked with SPXO 50mhz .
The model I bought is 2300H-25 Mhz.
Below the printed circuit there are 1xTHS3001 and 1xMC4558 with radiator fixed with one screw.
What do you think ?

(https://img4.hostingpics.net/thumbs/mini_463355FY2300H25mhz.jpg) (http://www.hostingpics.net/viewer.php?id=463355FY2300H25mhz.jpg)

(http://img4.hostingpics.net/thumbs/mini_6316132300H25Mhz.png) (http://www.hostingpics.net/viewer.php?id=6316132300H25Mhz.png)

Sorry for my English, I use a translator
Regards,
Alain
Title: Re: New generateur DDS avec Altera cyclone IV.
Post by: eurofox on July 16, 2017, 06:21:41 pm
Hello,

Here is the new Feeltech DDS generator equipped with an Altera Cyclone IV clocked with SPXO 50mhz .
The model I bought is 2300H-25 Mhz.
Below the printed circuit there are 1xTHS3001 and 1xMC4558 with radiator fixed with one screw.
What do you think ?

(https://img4.hostingpics.net/thumbs/mini_463355FY2300H25mhz.jpg) (http://www.hostingpics.net/viewer.php?id=463355FY2300H25mhz.jpg)

(http://img4.hostingpics.net/thumbs/mini_6316132300H25Mhz.png) (http://www.hostingpics.net/viewer.php?id=6316132300H25Mhz.png)

Sorry for my English, I use a translator
Regards,
Alain

Did you make some test to check if there is any improvement?
Vous avez fait des tests pour vérifier s’il y a des améliorations?
Title: Re: New generateur DDS avec Altera cyclone IV.
Post by: Diabolo on July 16, 2017, 06:38:10 pm
Hello,
The curves and signals are correct and do not distort.
I have not done great testing, but it's okay and better than other low cost DDS generators tried in the blog.

The blog specialists will do more tests than mine.

I have no connection with the company Felltech company.  ;)

Sorry for my English, I use a translator.  ;)

Regards,
Alain/Diabolo
Title: Re: New generateur DDS with Altera cyclone IV.
Post by: Diabolo on July 24, 2017, 05:50:16 pm
Hello,

Here are some curves with FY2300H
Square 10Mhz
- (http://img15.hostingpics.net/thumbs/mini_350730Square10Mhz.png) (http://www.hostingpics.net/viewer.php?id=350730Square10Mhz.png)
Sinus 25 Mhz
- (http://img15.hostingpics.net/thumbs/mini_791073Sinus25Mhz.png) (http://www.hostingpics.net/viewer.php?id=791073Sinus25Mhz.png)
Triangle 20 Mhz
- (http://img15.hostingpics.net/thumbs/mini_390575Triangle20mhz.png) (http://www.hostingpics.net/viewer.php?id=390575Triangle20mhz.png)
Scie 10Mhz
- (http://img15.hostingpics.net/thumbs/mini_431577Scie10Mhz.png) (http://www.hostingpics.net/viewer.php?id=431577Scie10Mhz.png)


Only everything is not perfect :
Square 20Mhz
- (http://img15.hostingpics.net/thumbs/mini_431246Square20Mhz.png) (http://www.hostingpics.net/viewer.php?id=431246Square20Mhz.png)
Scie 20Mhz
- (http://img15.hostingpics.net/thumbs/mini_727764Scie20Mhz.png) (http://www.hostingpics.net/viewer.php?id=727764Scie20Mhz.png)

Regards,
Diabolo