home *** CD-ROM | disk | FTP | other *** search
/ NetNews Usenet Archive 1992 #31 / NN_1992_31.iso / spool / sci / electron / 21554 < prev    next >
Encoding:
Internet Message Format  |  1992-12-24  |  1.8 KB
  1. Path: sparky!uunet!dtix!darwin.sura.net!eng.ufl.edu!creek.eel.ufl.edu!iqbal
  2. From: iqbal@creek.eel.ufl.edu (M.Iqbal)
  3. Newsgroups: sci.electronics
  4. Subject: Re: Pulse Shaping...
  5. Message-ID: <1992Dec24.202609.18903@eng.ufl.edu>
  6. Date: 24 Dec 92 20:26:09 GMT
  7. References: <BzMEHo.66s@ncifcrf.gov> <1992Dec21.222037.17229@news.mentorg.com>
  8. Sender: news@eng.ufl.edu (Usenet Diskhog System)
  9. Organization: University of Florida
  10. Lines: 29
  11.  
  12. In article <1992Dec21.222037.17229@news.mentorg.com>, philip@mentorg.com (Philip Peake) writes:
  13. |> In article <BzMEHo.66s@ncifcrf.gov>, digennar@fcs280s.ncifcrf.gov (Frank S. DiGennaro) writes:
  14. |> |> 
  15. |> |> This might be a dumb question, but here goes. If I put a sine wave of frequency
  16. |> |> F into a series of N flip-flops, the output will be a square wave of frequency
  17. |> |> F/2^N. How do I re-shape it back to a sine wave?
  18. |> 
  19. |> You pass it via a low pass filter, with the cut-off frequency at F/2^N.
  20. |> 
  21. |> If I didn't know how "digitalised" most current electronics courses
  22. |> have become, I would class this as a dumb question - but given the
  23. |> current (excessive) digital bisa - you are forgiven :-)
  24. |> 
  25. |> Philip
  26.  
  27. You would be suprised how many electrical engineers are graduating without
  28. knowing the answer to Frank's question. If you do not believe me, run a 
  29. test in the near by electrical engineering school. 
  30. -- 
  31.  
  32. ---------------------------------------------------------------------------
  33. "If your annual income today is $50,000, you have the same buying power as
  34. the average coal miner did in 1949, adjusted for taxes and inflation," John
  35. Sestina, nationally recognized Certified Financial Planner;  quoted in 1987.
  36.                                             
  37.                                >><<<     >>><<<<
  38. Iqbal@sioux.eel.ufl.edu                  (o o)     (o) (o)
  39. University of Florida                 [ | ]        | 
  40.                                              -         ---
  41.