I used a 567 feeding a couple of 555 timers for years,one timer set for
3 seconds to prevent falsing,the other ran 1 minute to feed the COR for
retransmission. I use a SAME rx now feeding directly into controller
logic. BIG improvement!
Randy Elliott wrote:
>Thanks again Joe.
>
>Randy
>On 12-Jan-05, at 6:53 PM, Joe Montierth wrote:
>
>
>
>>There is probably no easier and cheaper way to do it
>>than a 567 chip. This will give you a logic low, or
>>"pull to ground" when it decodes. If you are having a
>>hard time making it work, double check your circuit
>>layout, make sure the device is good, etc. The 567 is
>>easy to align and fun to play with, was kind of the
>>standard "touch tone" decoder back in the 70's.
>>
>>Joe
>>
>>
>>
>>
>
>
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