日本語
Hi all
I am designing a wristwatch PCB in which there will be two seperate parts.The analog part consists of a Li-ion battery charger IIC,one Fuel gauge IC & some supporting discrete components(Diode,Mosfet,Resistor,Cpacitor etc).
The digital part consists of a MCU,RTC,Buzzer,Display & some supporting discrete components.By far,i've placed all the analog parts in the bottom player.The top layer is containing all the digital parts except the RTC chip due to lack of space in the top layer.
I will apply ground plane in the bottom layer.
Now,I have some queries :
1) Should I apply ground plane for the top layer also?If so,then should I use single/multiple via to connect it to bottom layer as I think If i use single via,then there would be voltage drop...
2) If i don't apply ground plane for the top layer,can I connect every individual grounds of digital part using vias to the bottom layer ground plane??
Please suggest!My ongoing PCB design is as follows:
- Comments(1)
A****min
Feb 26.2020, 09:29:10
Ground planes can be used for shielding, but they aren't always needed.
What‘s more, it depends on the circuit. If you have high current in some of the connections, you'll set up a voltage gradient in ground. That can sometimes be a problem.
