First proposed in 1958, Class D amplifiers have become increasingly popular in recent years. So, what are Class D amplifiers? How do they compare to other types of amplifiers? Why do Class D amplifier
1. When different FPGA IO level standards are selected, what is the difference inside the IO? For example, what is the difference inside the FPGA when the IO is set to 3.3V and the IO is set to 1.8V?