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pls. o schema de frecventmetru !!!

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daca are cineva o schema de frecventmetru (pana la 200MHz) numeric pls.Doresc ceva simplu (un integrat specializat + alte umpluturi + afisaj cu leduri , 7 seg. si altele).Dar nu cu microcontroler si circuit imp. pe ambele fete. :smt006Apropo nu se poate fol. o scala numerica (ca la casetofoanele auto.)?

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Cauta in catalogul Microelectronica la aplicatiile lui MMC22926 si cu un prescaler pe intrare vei reusi sa faci un frecventmetru pana la 200Mhz. Scheme gasesti in Tehnium mai vechi , sau daca cauti pe net dar cu rabdare , caci in general se prefera cele cu microcontrolere . Am avut o schema de la un neamt cu CI digitale clasice si prescaler, dar am pierdut-o.

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