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- 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
-
- 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
-