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A 0.6-mW 16-FSK Receiver Achieving a Sensitivity of −103 dBm at 100 kb/s
- Source :
- IEEE Journal of Solid-State Circuits. 56:1299-1309
- Publication Year :
- 2021
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2021.
-
Abstract
- This article presents an RF receiver (RX) designed to exploit the inherent SNR advantage offered by non-coherent 16-FSK modulation relative to more conventional non-coherent modulation schemes, such as FSK and OOK. Specifically, this article demonstrates that when demodulated using two-pole bandpass filters, 16-FSK offers a 4-dB sensitivity advantage compared with binary frequency shift keying (BFSK), at the cost of reduced spectral efficiency at the same data rate. This article then presents the design of a 16-FSK-compatible RX front end, which performs demodulation through 16 $N$ -path filters driven by temperature-stabilized phase-locked loops to ensure calibration-free filter center frequency control, along with augmented Miller capacitors for tight area-constrained bandwidth control. Implemented in 65-nm CMOS, the RX consumes 0.6 mW from a 0.5-V supply while achieving a sensitivity of −103.2 dBm at 100 kb/s, for a power-sensitivity-data-rate figure of merit of 185.2 dB, which represents a 3.2 dB advance over state of the art.
- Subjects :
- Frequency-shift keying
Computer science
020208 electrical & electronic engineering
Bandwidth (signal processing)
02 engineering and technology
Spectral efficiency
Phase-locked loop
Band-pass filter
Modulation
0202 electrical engineering, electronic engineering, information engineering
Electronic engineering
Demodulation
Electrical and Electronic Engineering
Sensitivity (electronics)
Subjects
Details
- ISSN :
- 1558173X and 00189200
- Volume :
- 56
- Database :
- OpenAIRE
- Journal :
- IEEE Journal of Solid-State Circuits
- Accession number :
- edsair.doi...........06977c76cd93d44a252c958ac4217e7a