A 1900MHz-band GSM-based clock-harvesting receiver with −87dBm sensitivity

A 0.13μm CMOS clock-harvesting receiver is presented which extracts a 21Hz clock embedded within the GSM standard for the wake-up of a wireless sensor network. In active mode, the receiver achieves -87dBm sensitivity with 57μs of jitter at the output while consuming 126μW. The receiver is optimized for heavy duty-cycling with a sleep-mode power consumption of only 81pW.