About synchronous counters ???

Discussion in 'General Electronics Chat' started by h_b_k117, Jul 16, 2008.

  1. h_b_k117

    Thread Starter New Member

    Jul 16, 2008
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    Hi,

    Can anyone tell me two applications of synchronous counters with detail ???

    Thanks.
     
  2. SgtWookie

    Expert

    Jul 17, 2007
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    This sounds like a homework question.

    Is it?
     
  3. h_b_k117

    Thread Starter New Member

    Jul 16, 2008
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    It's a question from my sample papers for exam. Please help me. Any clues.
     
  4. bertus

    Administrator

    Apr 5, 2008
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  5. h_b_k117

    Thread Starter New Member

    Jul 16, 2008
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    Thank you very much.
     
  6. SgtWookie

    Expert

    Jul 17, 2007
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    One application for synchronous counters would be to drive a DAC (Digital to Analog Converter) to generate a ramp voltage. If a "ripple" counter were used, the output from the DAC would have lots of "glitches" on it. Having all outputs from the counter change simultaneously minimizes the possibility of glitches.

    Another application could be memory decoding. Ensuring that a single address was selected would reduce the access time.

    The propagation delay in ripple counters is cumulative. That makes them difficult to use cascaded in high speed applications.
     
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