Low pass filter circuit using NE5532 opamp: The subwoofer amplifier needs a filter board to drive the low-frequency output.
The board is specially designed to restrict the high frequency and allowing the low-frequency signals.
The subwoofer working frequency is in between 50 hertz to 150 hertz. To get low frequency, it’s specially designing a low pass filter circuits as per the diagram. Here are going to discuss the low pass filter-making using NE5532 IC.
This NE5532 IC is an opamp IC. 2 operational amplifier is inbuilt in it.
Features of NE5532 IC (low pass filter circuit ic)
This IC provided the best audio output and less noise, this IC is a high-speed audio operational amplifier.
let’s discuss the circuit and it’s working. The circuit is very simple to set up and already has a symmetrical power supply. that means a dual power supply. The transformer must be used 9 to 12 volt 500 milliamperes with a center tap. in many cases the power supply, we are taking from the power amplifier that’s also good.
The low pass filters are mainly used in the subwoofer amplifier because the subwoofer amplifier needs that.
The subwoofer is used for reproducing the low-frequency audios to high power output.
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4558 low pass filter pcb layout pls
4558 low pass filter pcb layout
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