An Integrated IQ Demodulator with Integrated Low-Power Multi-Gigabit BPSK / ASK Analog Signal Processor in 90nm CMOS

摘要

In this paper, two integrated low-power broadband 90nm-CMOS analog solutions are demonstrated to demodulate the multi-gigabit BPSK/ASK signal up to 3Gbps. In the coherent BPSK mode, a transmission speed over 2.5Gbps is achievable with a carrier frequency range of 8.5-9.5GHz for a total DC power consumption of 73mW with more than 20dB conversion gain. A minimum sensitivity of -35dBm is demonstrated for this demodulator with 33dB dynamic range. In the non-coherent ASK mode, a transmission speed over 3Gbps is achieved for a carrier frequency range of 6-9GHz at DC power consumption of 32mW. A minimum sensitivity of -26dBm is demonstrated for the demodulator with 21dB dynamic range. This is the best trade-off in terms of data rate and power consumption of CMOS demodulators reported at around 10GHz carrier frequencies.