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what is the difference between a sigma-delta dac converter and a digital pwm that we could low-pass filter to obtain an analog level proporcional to it duty-cycle.
noise in power source
In my system i have some ldo regulators with outputs, 1.2V, 2.5, 3.3V and 1.8V. The input to them is 5V from a switching power source. In the system exist also two contactors and the conmutation of them cause some time a hung of the dsp in the board. The board is isolated...
fpga ethernet communication
Hi, i have designed a board with a spartan 3, 200K gates. In that board i included a rs486 full duplex transceiver with the porpouse of monitorization from our pc software. But i also included a connector with a lot of pins from the fpga with future expansion...
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