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Chip Amps Amplifiers based on integrated circuits

Q about LM3875 circuit...
Q about LM3875 circuit...
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Old 12th December 2003, 01:22 PM   #1
Buhl is offline Buhl  Denmark
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Default Q about LM3875 circuit...

Hi There !
I have a circuit of a GC using the LM3875 - on the drawing a 1uF is used across the supply legs 1 and 4 - on other drawings this component is not used - what does it do, and is the size of it important ??

Thanx !

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Old 12th December 2003, 01:49 PM   #2
li_gangyi is offline li_gangyi  Singapore
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it's a decoupling cap...it's not really needed, but the 2 1000uF's (or above) between the +Ve to GND and -Ve to GND is important...
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