Tang, K., Yang, C., Fang, Z., Wang, W., Wang, N., Zhu, Y., Ng, E. J., Heng, C.-H., & Zheng, Y. (2021). A 75.3 pJ/b Ultra-Low Power MEMS-Based FSK Transmitter in ISM-915 MHz Band for Pico-IoT Applications. 2021 IEEE International Symposium on Circuits and Systems (ISCAS). https://doi.org/10.1109/iscas51556.2021.9401715
Abstract:
An ultra-lower power (ULP) MEMS-based FSK transmitter is implemented in 65 nm CMOS. The transmitter operates in ISM-915 MHz band using a binary FSK modulator employing the high-Q dual microelectromechanical system (MEMS) resonators. The transmitter using an adaptive fast switching binary FSK modulator generates FSK signals in 915 MHz band with -8.2 dBm output power, supporting up to 10 Mb/s data rate. The phase noise (PN) of the FSK modulator was measured for each of the two different operation frequencies, achieving -139.4dBc/Hz and -138.7dBc/Hz at a 1-MHz offset at 911.9 MHz and 923.1 MHz, respectively. At 10 Mb/s, the transmitter consumes 753 pW, which translates to energy-efficiency of 75.3 pJ/b.
License type:
Publisher Copyright
Funding Info:
This research / project is supported by the A*STAR - SERC - Programmatic - Nanosystems at the Edge - Ultra low power physcial sensors
Grant Reference no. : A18A4b0055