Hi,
I am doing a VoIP device using PIC so it will have digital part as well as analogue part (preamp, power amplifier etc).
Besides having lots of grounding between the analog section and digital section, is there any other thing i need to put more attention on..?
I am just worried of the trace being to thin until it limits the audio signal, and also worried of noise in relation to the analog section.
For most part of the PCB board, the trace would be 1mm. Of course the trace for the supply will be more thicker..
In the circuit, there are 2 section where the analog section meets digital section which is the PIC's ADC and PIC's PWM (use as DAC). I am especially worried about these part. Is trace of 1mm enough for the audio signal to flow succesfully? Do I need thicker trace for the analog section..?
One of my friends did am amplifier circuit and because his trace is too thin, the amplifier doesn't actually produce any sound.. Besides, its also my first time doing analog related circuit.
How about the effect of noise..? How to overcome..?
So, yeah.. please do advice..
Thanks..
I am doing a VoIP device using PIC so it will have digital part as well as analogue part (preamp, power amplifier etc).
Besides having lots of grounding between the analog section and digital section, is there any other thing i need to put more attention on..?
I am just worried of the trace being to thin until it limits the audio signal, and also worried of noise in relation to the analog section.
For most part of the PCB board, the trace would be 1mm. Of course the trace for the supply will be more thicker..
In the circuit, there are 2 section where the analog section meets digital section which is the PIC's ADC and PIC's PWM (use as DAC). I am especially worried about these part. Is trace of 1mm enough for the audio signal to flow succesfully? Do I need thicker trace for the analog section..?
One of my friends did am amplifier circuit and because his trace is too thin, the amplifier doesn't actually produce any sound.. Besides, its also my first time doing analog related circuit.
How about the effect of noise..? How to overcome..?
So, yeah.. please do advice..
Thanks..