I need to design a three stage amplifier to allow this microphone(peak open circuit voltage of 1mV with an output resistance of 10kOhm) to drive an 8ohm speaker in such a way that the output voltage amplitude is maximised. in addition, the following constraints are placed on the design.
1) Circuit is to be biased from a +/- 12v DC power supply.
2) Have a bandwidth of 20Hz - 20kHz.
3) should produce no obervable clipping or distortion in the output voltage waveform when the input voltage is at its maximum value. (1mVpk)
4) Only use NPN 2N3904 or PNP 2N3906 transistors or both.
-2N3904 : B=300, C1=4.5pF, C2 =3.5pF
-2N3906 : B=400, C1=6.3pF, C2 =5.8pF
Anyone can help me with the design of the circuit?
1) Circuit is to be biased from a +/- 12v DC power supply.
2) Have a bandwidth of 20Hz - 20kHz.
3) should produce no obervable clipping or distortion in the output voltage waveform when the input voltage is at its maximum value. (1mVpk)
4) Only use NPN 2N3904 or PNP 2N3906 transistors or both.
-2N3904 : B=300, C1=4.5pF, C2 =3.5pF
-2N3906 : B=400, C1=6.3pF, C2 =5.8pF
Anyone can help me with the design of the circuit?