who can help me to find the tone generator IC setting frequency by user

Discussion in 'Wireless & RF Design' started by drake LEE, Mar 10, 2013.

  1. drake LEE

    Thread Starter New Member

    Mar 10, 2013
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    I am searching tone generator IC cheap, small size and operating by simple setting for audio amp test.

    plz let me know how to find that IC or where do I search them?
     
  2. MrChips

    Moderator

    Oct 2, 2009
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    3,356
    Try a 555 timer.
     
  3. panic mode

    Senior Member

    Oct 10, 2011
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    there is tons of oscillators out there and they all can do the job. usually one would choose function generator as a flexible signal source. there are many circuits hobbyist can use from specialized IC (like ICL8038, XR2226 etc.) to a generic version that uses OpAmps for example. in addition to having oscillator, it is important to have attenuator so you can reduce amplitude of the signal down to few mV for example (potentiometer will do).
     
  4. shortbus

    AAC Fanatic!

    Sep 30, 2009
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  5. drake LEE

    Thread Starter New Member

    Mar 10, 2013
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    0
    thanks for all
    I finally found that programmable IC ,PCD3311C. it is useful for tone signal used mobile network and so cheap
     
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