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A low-power, low 1/f noise RF receiver front-end for 900 MHz IEEE 802.15.4 ZigBee standard in 0.18 mum CMOS technology is implemented. In combination with LNA, a passive mixer showing excellent 1/f ...
Figure 2 TBH principle sums two 8-bit PWM signals in one 16-bit DAC = Vref (MSBY+LSBY/256)/256. The asterisked resistors are ...