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#1 |
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diyAudio Member
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i've recently bought the LM1876 IC chip and the datasheet does not offer any help as to what kind of circuit should be used if the person wishes to use the standby and/or mute functions. it also does not show wether to connect it to the positve voltage Vcc ot the negative voltage Vee.
Can anyone help me with a simple schematic and explanation of what to use if i wish to use both mute and standby. Thanks. |
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#2 |
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diyAudio Member
Join Date: May 2006
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From Reading the Datasheet it seems that the Mute and Standby functions are controlled by a Logic gate , logic-high voltage will mute it and Logic-low voltage will un-mute it , it is simular for the Standby function .....
Since I don"t have a clue about logic gates I couldn"t tell you how to implement it ...... In appliciation information it talks about the Mute and standby pins but I can"t make heads or tails of it ...... http://www.national.com/ds/LM/LM1876.pdf |
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#4 |
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diyAudio Member
Join Date: Aug 2008
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If grounded, both mute and standby are disabled. But you may get unwanted turn on pops. A logic "high" is often 5V, and it says mute and standby must be at least 2.5V to function.
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