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Chip Amps Amplifiers based on integrated circuits

TDA 8264
TDA 8264
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Old 21st August 2012, 12:49 PM   #1
JunRuelo2012 is offline JunRuelo2012
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Default TDA 8264

Hello there everyone, just got a TDA8264 amp, but the problem is, it keeps on humming. I need your inputs on how to improve this circuit.
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Old 21st August 2012, 03:30 PM   #2
Arty is offline Arty
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get rid of the tone controlls.
and post pictures of the actual circuit built.
prehaps grounding issues, re-routing /planning grounding scheme to star ground would make improvment.
a ceramic cap from pin 11 to gnd might allso helps.
220 to 330 pf value.
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Old 21st August 2012, 03:46 PM   #3
abraxalito is offline abraxalito  United Kingdom
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I can't find a datasheet for that chipamp. Also I wonder why although there are two zobel networks shown, only one is connected to a speaker output. Is there a missing connection to that on the schematic?
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Old 21st August 2012, 06:25 PM   #4
Arty is offline Arty
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think about it, top right corner, 12 vdc supply voltage, and bottom line, 50 watt output power.
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Old 22nd August 2012, 01:52 PM   #5
JunRuelo2012 is offline JunRuelo2012
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here is the actual picture of the circuit.
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Old 20th October 2012, 06:41 AM   #6
kenvillanueva2 is offline kenvillanueva2
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im having a problem also with this type of kit with the said amplifier.
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