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Dear Friends,
I wanna connect two gsm antenna ; one in internal PCB and the other is external GSM antenna. This is needed for places where signal quality is poor, so when 3 meter coax. external gsm antenna is connected the device continues to get connected.
so the RF signal source is 50 ohm...
Hi All,
I am designing a mixed signal system board that consists of 3 grounds and each system needs different regulated power supplies (3.3,2.5V for DGND,15V and 2.8V for AGND). The main input voltage is 24V. PCB is 2 layer. I have designed ground layout as shown in the attached picture. My...
hi,
in this statement:
x = *buf++;
means that x equals to *buf but for the next case buf points to next adress in memory.
if you write;
x = *(buf++);
x equals to the value in adress (buf+1),
that is the trick!
Gain and phase
phase is the output delay of the overall system. So if you have a phase compensation in a control system you design your system transfer function as your requirements. In some time if your system needs some matching then you design the transfer function as zero phase that is...
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