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Similarly the digital PWM also has a finite resolution. In the case of the PowerXR products if users look at the equation shown below the image N would be eight, so there are eight bits and therefore each period is divided into 256 time slots. This is done at each frequency so the number of bits remains constant with variable resolution. One major change in the newest Programmable power product, the XRP7724, has changed to a constant 600 picosecond resolution rather than fixed number of bits.
PTM Published on: 2013-09-19
