Hi I just assembled the "minmum parts" model shown here:
http://www.biltek.tubitak.gov.tr/gelisim/elektronik/dosyalar/6/LM386.pdf
Everything makes sense to me except the audio out(Pin 5)
Before the DC Blocking cap there is .05 uf cap in series with a 10ohm resistor to ground
What does this do?
I removed it from my circuit while music was playing and did not hear a change.
Thank you for your Answers!
http://www.biltek.tubitak.gov.tr/gelisim/elektronik/dosyalar/6/LM386.pdf
Everything makes sense to me except the audio out(Pin 5)
Before the DC Blocking cap there is .05 uf cap in series with a 10ohm resistor to ground
What does this do?
I removed it from my circuit while music was playing and did not hear a change.
Thank you for your Answers!
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The 'speaker's coil impedance is predominantly inductive. That being so, its reactance increases with frequency. That changes the characteristics of any cross-over filters.
By adding those two components, called a Zobel network, the capacitor's reactance, which decreases with increasing frequency, compensates for the increasing inductive reactance of the coil and maintains a more or less constant impedance so the crossover/s are not afffected.
If the system doesn't have any filters between the amplifier/s and 'speaker/s, there seems little point in including them.
By adding those two components, called a Zobel network, the capacitor's reactance, which decreases with increasing frequency, compensates for the increasing inductive reactance of the coil and maintains a more or less constant impedance so the crossover/s are not afffected.
If the system doesn't have any filters between the amplifier/s and 'speaker/s, there seems little point in including them.