I think the normal value for a LM based chipamp it somewhere between 10k and 25k log, dual obviously. You would also probably find that the best option would be a stepped attenuator such as this very good value offering:-
http://www.diyfidelity.com.au/product_info.php?cPath=0_33&products_id=32
Regards,
Phil
http://www.diyfidelity.com.au/product_info.php?cPath=0_33&products_id=32
Regards,
Phil
Vikash said:10k is fine. Unless you intend to law fake it.
I'm assuming to law fake it I would need a higher resistance linear pot?
I've previously used a 10K pot with a TDA2050 amp (pdf's layout) and it worked fine, When I tried it with a LM3876 IC (own layout)it would generate noise.
My question is can you use the volume pot alone with no other components, like a buffer?
I rekon that it was probably bad PCB layout that caused it to make a buzz when attenuating the input signal.
If I can use only the pot it would make my amp way easier.
My question is can you use the volume pot alone with no other components, like a buffer?
I rekon that it was probably bad PCB layout that caused it to make a buzz when attenuating the input signal.
If I can use only the pot it would make my amp way easier.
10K step Attenuator
I know this tread is a little old but I have another question with the subject.
I have a 10K step attenuator but I would like to use this in a passive preamplifier and use it for universal testing (also a non inverted gianclone and other amplifiers). What problems I might see in this idea with a (non-inverting) gainclone?
Thanks
I know this tread is a little old but I have another question with the subject.
I have a 10K step attenuator but I would like to use this in a passive preamplifier and use it for universal testing (also a non inverted gianclone and other amplifiers). What problems I might see in this idea with a (non-inverting) gainclone?
Thanks
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