Energy Harvesting AC/DC Circuit and ASK Demodulator/Modulator RF frequency: 900 MHz (RFID EPC Gen2 interface protocol) AC/DC rectifier generated from basic cell connected in series cascade connection ASK Demodulator designed for RFID bit cycle from 6.25 us to 25 us Antenna load modulation for backscatter link Voltage and Current Reference Voltage reference Vref 485 mV Vref temperature coefficient 7 ppm/C Current reference 100 nA Variation over temperature range -10 C to 70 C: 20 % Low Power LDO Regulator Output voltage 1.45V with input referent voltage 0.48V Supply capability: 500 uA Quiescent current: 3.7 uA PSSR: -80dB@DC -20dB@1MHz 9-bit Cyclic ADC Low power architecture Design immune to voltage supply variations Speed: 1 KSa/s Power consumption: 11 uW Preliminary datasheet Oscillator Frequency: 3.66 MHz Power consumption: 7.4 uW Minimum voltage supply: 1.2V Preliminary datasheet Digital Logic for IntRFID Logic for ADC conversion Logic for EPC Gen2 protocol (protocol subset) Clock frequency: 2 MHz Voltage supply range: 1.2V - 1.6V Temperature range: 0 C - 80 C
