Article View: sci.electronics
Article #11050Signal Generator CD
From: Daryl Fortney
Date: Wed, 07 Oct 1992 18:17
Date: Wed, 07 Oct 1992 18:17
23 lines
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1299 bytes
I think that your idea for using a CD player as a signal generator is a good one, but there are a few limitations to this which you may want to consider. 1> Sample rate is only 44Khz, therefore, the highest frequency you can expect to see is about 20Khz. 2> Compound signals, like square waves and triagular, often contain much of there information in the harmonics of the base frequency, which will be attenuated, aliasing a square wave into a sine wave for higher frequencies. 3> You may need an amplifier on output, since CD players don't have a high current driving capability. If your needs are for a relatively low frequency unit with low power output, then good luck. It definately is a cheap alternative. -df -- Daryl Fortney drf40@cd.amdahl.com
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Path: arc1-ca.pugleaf.net!sparky!uunet!noc.near.net!news.bbn.com!usc!zaphod.mps.ohio-state.edu!wupost!sdd.hp.com!uakari.primate.wisc.edu!ames!data.nas.nasa.gov!taligent!apple!voder!nsc!amdahl!JUTS!cd.amdahl.com!drf40 From: drf40@cd.amdahl.com (Daryl Fortney) Newsgroups: sci.electronics Subject: Signal Generator CD Message-ID: <0cGR022H25KY01@JUTS.ccc.amdahl.com> Date: 7 Oct 92 18:17:27 GMT Sender: netnews@ccc.amdahl.com Reply-To: drf40@cd.amdahl.com Organization: Amdahl Corporation, Sunnyvale, CA Lines: 23