Waveform generator

Hi all, I need an integrated waveform generator such as MAX038 from
Maxim, but with a wider band (almost two times, or more, wider). Does
anyone know a chip that works like this? Thanks.
Daniele.

 

[Leon Heller]

<billyliar@libero.it> wrote in message
news:1108991280.438607.132570@f14g2000cwb.googlegroups.com...

Hi all, I need an integrated waveform generator such as MAX038 from
Maxim, but with a wider band (almost two times, or more, wider). Does
anyone know a chip that works like this? Thanks.

Not a single chip solution, but you can do it with a software DDS running on
a microcontroller, up to 200 kHz or so. I've got an example on my web site.
With a 20 MHz ATtiny2313 it should go up to over 400 kHz.

Leon
--
Leon Heller, G1HSM
http://www.geocities.com/leon_heller

 

[Luhan Monat]

billyliar@libero.it wrote:

Hi all, I need an integrated waveform generator such as MAX038 from
Maxim, but with a wider band (almost two times, or more, wider). Does
anyone know a chip that works like this? Thanks.
Daniele.

Hi,

Do you specifically need sine waves - or will square waves do?

--
Luhan Monat (luhanis 'at' yahoo 'dot' com)
"The future is not what it used to be..."
http://members.cox.net/berniekm

 

[Marco]

Luhan Monat <x@y.z> wrote in message news:<MmnSd.77791$Yu.48521@fed1read01>...

Hi,

Do you specifically need sine waves - or will square waves do?

Hi, thanks for your reply.
I need a sine wave up to 40 or 50 MHz. MAX038 maaximum frequency is 20 MHz.

 

[Leon Heller]

"Marco" <billyliar@libero.it> wrote in message
news:87f9f27c.0502220205.dec56aa@posting.google.com...

Luhan Monat <x@y.z> wrote in message
news:<MmnSd.77791$Yu.48521@fed1read01>...


Hi,

Do you specifically need sine waves - or will square waves do?

Hi, thanks for your reply.
I need a sine wave up to 40 or 50 MHz. MAX038 maaximum frequency is 20
MHz.

Look at the AD9850 etc. from Analog Devices.


Leon
--
Leon Heller, G1HSM
http://www.geocities.com/leon_heller

 

[Marco]

"Leon Heller" <leon_heller@hotmail.com> wrote in message news:<421b2180$0$10939$cc9e4d1f@news-text.dial.pipex.com>...

"Marco" <billyliar@libero.it> wrote in message
news:87f9f27c.0502220205.dec56aa@posting.google.com...
Luhan Monat <x@y.z> wrote in message
news:<MmnSd.77791$Yu.48521@fed1read01>...

Look at the AD9850 etc. from Analog Devices.


Leon

I never used a DDS, I know that it's the best way, but I'm looking for
something else. If you tell me that it's simple, then I'll try. Wher
can I find a good tutorial for programming a DDS in order to obtain a
sinewave in a large frequency bandwidth (e.g. 1-100 MHz)? And, above
all, how much will I spend for a DDS?