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Frequency synthesis with basic stamps ? — Parallax Forums

Frequency synthesis with basic stamps ?

ArchiverArchiver Posts: 46,084
edited 2002-09-15 09:04 in General Discussion
I need to make a machine to create TTL level signals either as a square wave
or a sine wave between 3200 HZ and 160000 HZ. Can anyone point me to a
link that might explain how to do this ?

Justin Pentecost
Focus Puller London

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2002-09-08 22:56
    Hi Justin

    Do you really want to use a Stamp, or is it OK with another system ?

    Phil.
    Original Message
    From: "Justin Pentecost" <justin@k...>
    To: <basicstamps@yahoogroups.com>
    Sent: Sunday, September 08, 2002 3:07 PM
    Subject: [noparse][[/noparse]basicstamps] Frequency synthesis with basic stamps ?


    | I need to make a machine to create TTL level signals either as a
    square wave
    | or a sine wave between 3200 HZ and 160000 HZ. Can anyone point
    me to a
    | link that might explain how to do this ?
    |
    | Justin Pentecost
    | Focus Puller London
  • ArchiverArchiver Posts: 46,084
    edited 2002-09-09 12:12
    >I need to make a machine to create TTL level signals either as a square wave
    >or a sine wave between 3200 HZ and 160000 HZ. Can anyone point me to a
    >link that might explain how to do this ?

    There's a chip that does sine, triangle and square waves with only
    a handful of parts: ICL8038.
  • ArchiverArchiver Posts: 46,084
    edited 2002-09-09 13:03
    A better choice might be the MAXIM MAX038 waveform generator IC
    from www.maxim-ic.com www.digikey.com had them for about $12.45 each.
    If your a company you could get a sample from Maxim.
    It seems to work from very low frequencies such as 50 hertz up to over 20mhz
    too.
    The ICL8038 seems to be a obsolete discontinued device now. Myabe one of the
    surplus vendors have them.
    Original Message
    From: carl@g... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Fi2fTq9oaPtgWyuwtFg565CFdNqHe8xm9xwvHCbc5O9AvTPwkeqDk3Zwdfl3MnSo7n3G0Q]carl@g...[/url
    Sent: Monday, September 09, 2002 6:13 AM
    To: basicstamps@yahoogroups.com
    Subject: Re: [noparse][[/noparse]basicstamps] Frequency synthesis with basic stamps ?


    >I need to make a machine to create TTL level signals either as a square
    wave
    >or a sine wave between 3200 HZ and 160000 HZ. Can anyone point me to a
    >link that might explain how to do this ?

    There's a chip that does sine, triangle and square waves with only
    a handful of parts: ICL8038.


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  • ArchiverArchiver Posts: 46,084
    edited 2002-09-09 21:58
    MAXIM currently makes the MAX038 Waveform Generator IC. You can get a free
    sample even if you arn't a company, just fill out the sample form on their
    site: www.maxim-ic.com; go there and type MAX038 in the part # search box in
    the upper-left corner. This will bring up the data page. Datasheetes (PDF)
    are available for viewing/downloading. The IC is capable of Pulse wave,
    Square wave, Sawtooth, and others. Frequencies range from 50hz to ~20mhz.
    Keep in mind the BS2 has a processor rate of 20mhz as well so don't give it
    something it can't handle (i.e: over 20mhz). Hope this helps!
    Original Message
    From: "Earl Bollinger" <earlwbollinger@a...>
    To: <basicstamps@yahoogroups.com>
    Sent: Monday, September 09, 2002 8:03 AM
    Subject: RE: [noparse][[/noparse]basicstamps] Frequency synthesis with basic stamps ?


    > A better choice might be the MAXIM MAX038 waveform generator IC
    > from www.maxim-ic.com www.digikey.com had them for about $12.45 each.
    > If your a company you could get a sample from Maxim.
    > It seems to work from very low frequencies such as 50 hertz up to over
    20mhz
    > too.
    > The ICL8038 seems to be a obsolete discontinued device now. Myabe one of
    the
    > surplus vendors have them.
    >
    >
    Original Message
    > From: carl@g... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=4axpuMSvlE-Utn8uSSjxuQgysLSEPmHj4UT0MdjeP4USa50aL6i5hDot16H2iym49cRFaA]carl@g...[/url
    > Sent: Monday, September 09, 2002 6:13 AM
    > To: basicstamps@yahoogroups.com
    > Subject: Re: [noparse][[/noparse]basicstamps] Frequency synthesis with basic stamps ?
    >
    >
    > >I need to make a machine to create TTL level signals either as a square
    > wave
    > >or a sine wave between 3200 HZ and 160000 HZ. Can anyone point me to
    a
    > >link that might explain how to do this ?
    >
    > There's a chip that does sine, triangle and square waves with only
    > a handful of parts: ICL8038.
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    > Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2002-09-09 22:01
    MAXIM makes a Waveform Generator IC called the MAX038. It's capable of Sine,
    Square, Sawtooth, and Pulse-Width waves (or more). It runs frequencies from
    50hz to 20mhz. Just keep in mind the BS2 runs at 20mhz so don't give it
    something it can't handle (over 20mhz). Maxim offers free samples as well.
    Datasheets (PDF) are also available. Their site is www.maxim-ic.com.

    --Jake
    Original Message
    From: <carl@g...>
    To: <basicstamps@yahoogroups.com>
    Sent: Monday, September 09, 2002 7:12 AM
    Subject: Re: [noparse][[/noparse]basicstamps] Frequency synthesis with basic stamps ?


    > >I need to make a machine to create TTL level signals either as a square
    wave
    > >or a sine wave between 3200 HZ and 160000 HZ. Can anyone point me to
    a
    > >link that might explain how to do this ?
    >
    > There's a chip that does sine, triangle and square waves with only
    > a handful of parts: ICL8038.
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2002-09-09 22:45
    Just done it! :-)

    Hard to believe they are sending me a sample at no charge, with freight at
    their expense to New Zealand. :-)



    > From: "Jacob Rossi" <coolnetdude@c...>
    > Reply-To: basicstamps@yahoogroups.com
    > Date: Mon, 9 Sep 2002 16:58:56 -0400
    > To: <basicstamps@yahoogroups.com>
    > Subject: Re: [noparse][[/noparse]basicstamps] Frequency synthesis with basic stamps ?
    >
    > MAXIM currently makes the MAX038 Waveform Generator IC. You can get a free
    > sample even if you arn't a company, just fill out the sample form on their
    > site: www.maxim-ic.com; go there and type MAX038 in the part # search box in
    > the upper-left corner. This will bring up the data page. Datasheetes (PDF)
    > are available for viewing/downloading. The IC is capable of Pulse wave,
    > Square wave, Sawtooth, and others. Frequencies range from 50hz to ~20mhz.
    > Keep in mind the BS2 has a processor rate of 20mhz as well so don't give it
    > something it can't handle (i.e: over 20mhz). Hope this helps!
    >
    Original Message
    > From: "Earl Bollinger" <earlwbollinger@a...>
    > To: <basicstamps@yahoogroups.com>
    > Sent: Monday, September 09, 2002 8:03 AM
    > Subject: RE: [noparse][[/noparse]basicstamps] Frequency synthesis with basic stamps ?
    >
    >
    >> A better choice might be the MAXIM MAX038 waveform generator IC
    >> from www.maxim-ic.com www.digikey.com had them for about $12.45 each.
    >> If your a company you could get a sample from Maxim.
    >> It seems to work from very low frequencies such as 50 hertz up to over
    > 20mhz
    >> too.
    >> The ICL8038 seems to be a obsolete discontinued device now. Myabe one of
    > the
    >> surplus vendors have them.
    >>
    >>
    Original Message
    >> From: carl@g... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=cqhnhQ6ANdnCIr8jrVcW8CkDfRGeiaO1A0R7Th2nv73MX7Qevc74DhYhMce3AtqVQjOP]carl@g...[/url
    >> Sent: Monday, September 09, 2002 6:13 AM
    >> To: basicstamps@yahoogroups.com
    >> Subject: Re: [noparse][[/noparse]basicstamps] Frequency synthesis with basic stamps ?
    >>
    >>
    >>> I need to make a machine to create TTL level signals either as a square
    >> wave
    >>> or a sine wave between 3200 HZ and 160000 HZ. Can anyone point me to
    > a
    >>> link that might explain how to do this ?
    >>
    >> There's a chip that does sine, triangle and square waves with only
    >> a handful of parts: ICL8038.
    >>
    >>
    >> To UNSUBSCRIBE, just send mail to:
    >> basicstamps-unsubscribe@yahoogroups.com
    >> from the same email address that you subscribed. Text in the Subject and
    >> Body of the message will be ignored.
    >>
    >>
    >> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >>
    >>
    >>
    >>
    >>
    >> To UNSUBSCRIBE, just send mail to:
    >> basicstamps-unsubscribe@yahoogroups.com
    >> from the same email address that you subscribed. Text in the Subject and
    > Body of the message will be ignored.
    >>
    >>
    >> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >>
    >>
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and Body
    > of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2002-09-15 09:04
    I feel like a complete **** over this, I posted the question a week ago and
    then forgot about it until today. The solution offered was exactly what I
    was after, I can't thank you all enough.

    Justin
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