afr123
Junior Member level 1
Hi,
I am designing a circuit but confused about the grounding. I have read analog and TI application notes but still have some confusion.
I have one DSP board and with it I plan to connect my own designed board. In my board, I plan to include:
1) DAC for audio output
2) ADC for analog input
3) Audio Amplifier (7W)
4) Opamps
My supply is +12V and from that I will generate different supplies using DC-DC converters. +12V will be directly connected to the Audio Amplifier.
Now, I think I should separate the ground of Audio amp. from rest of the circuitry as it will create problems for ADC and DAC. I also intend to have a ground plane on the other side of the PCB which will be the ground for the rest of the components.
Obviously I have to connect the +12V supply ground to the other ground at one point and I think I will use 0 ohm resistor for that.
From design point of view, what else can you guys recommend?
Thanks
I am designing a circuit but confused about the grounding. I have read analog and TI application notes but still have some confusion.
I have one DSP board and with it I plan to connect my own designed board. In my board, I plan to include:
1) DAC for audio output
2) ADC for analog input
3) Audio Amplifier (7W)
4) Opamps
My supply is +12V and from that I will generate different supplies using DC-DC converters. +12V will be directly connected to the Audio Amplifier.
Now, I think I should separate the ground of Audio amp. from rest of the circuitry as it will create problems for ADC and DAC. I also intend to have a ground plane on the other side of the PCB which will be the ground for the rest of the components.
Obviously I have to connect the +12V supply ground to the other ground at one point and I think I will use 0 ohm resistor for that.
From design point of view, what else can you guys recommend?
Thanks