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.
Waveform generator
Feb 21, 2005
5 Replies
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
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
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
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?
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