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TDA1515bq


valentonx
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Am realizat un amplificator cu acest circuit si i-am dat semnal dintr-un modul mp3 !

Problema este ca am un zgomot de fond cam mare iar amplificatorul ajunge la puterea maxima cand mp3-ul este la volum 22 , el permitand volum pana la 50.

Cred ca gain-ul amplificatorului este prea mare , ar fi vre-o posibilitate sa il reduc ?

Mentionez ca amplificatorul este legat in configuratie btl si a fost respectata schema din datasheat !

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Cred ca gain-ul amplificatorului este prea mare , ar fi vre-o posibilitate sa il reduc ?

Mentionez ca amplificatorul este legat in configuratie btl si a fost respectata schema din datasheat !

Modificati doar rezistorul de 2K ohm cu: 2,7k ohm, 3,3k ohm, 3,9k ohm, 4,7k ohm.

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Pe viitor, la proiecte similare, sa folosesti TDA1554 sau TDA7377, care  au amplificarea fixa, de 20x, si reteaua de reactie inclusa in integrat. In plus, au distorsiuni si zgomot de fond mai mici. Ambele canale, in punte,  intr-o singura capsula.

Edited by lukeme
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