An ultra-low power low-IF GFSK demodulator for Bluetooth-LE applications
Abstract
This paper presents a digital low-IF Gaussian frequency-shift keying (GFSK) demodulator. The demodulator is based on a phase-shift quadrature discriminator. A preamble detector controls the sequencing of the blocks operation to minimize power consumption. An IF input signal of 1 MHz is used, the same of the data rate, hence, allowing a low-power receiver implementation. The implementation is fully digital with a silicon area of 0.06 mm2in 130 nm process. Simulations show a state-of-art current consumption of about 143 μA from a single 1.2 V supply voltage. The proposed demodulator requires a SNR of 15 dB for a BER of 0.1 % for up to ± 200 kHz frequency offset variation.
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The obtained CERs are compatible with the necessary Bit Error Rate (BER) reported in the literature for low power Zigbee and BLE frontends, ranging from 10^-6 up to 10^-3.
“Even so, the obtained CERs are compatible with the necessary Bit Error Rate (BER) reported in the literature for low power Zigbee and BLE frontends [19,20], ranging from 10 -6 up to 10 -3 .”
From A low-power 10-bit 0.01-to-12-MS/s asynchronous SAR ADC in 65-nm CMOS (2021) · cites this paper as [19]
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A low-power 10-bit 0.01-to-12-MS/s asynchronous SAR ADC in 65-nm CMOS
Campos, A. L., Navarro, J., Luppe, M., & de Lima, E. R. (2021) · Analog Integrated Circuits and Signal Processing · doi:10.1007/s10470-020-01742-6 · Cited by 8 · see citing works
- Authors
- Pereira, M. S., Vaz, J. C., Leme, C. A., de Sousa, J. T., & Freire, J. C.
- Affiliations
- University of Lisbon (PT)
- Venue
- 2015 IEEE International Symposium on Circuits and Systems (ISCAS)
- Publisher
- IEEE
- Published
- 2015-05
- Pages
- 1226-1229
- ISSN
- 0271-4302 (ISSN-L)
- OpenAlex
- W1577467176
- Cited by
- 6
- References
- 0
- Citations by year
- 2026: 1 · 2022: 1 · 2021: 1 · 2019: 1 · 2017: 2
- FWCI
- 0.83
- Type
- conference paper
- Language
- en
- Open access
- closed
- Locations
- IEEE International Symposium on Circuits and Systems proceedings (publishedVersion)
- Funders
- Fundação para a Ciência e a Tecnologia
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Radio Frequency Integrated Circuit Design
- Physical Sciences › Computer Science › Computer Networks and Communications › Bluetooth and Wireless Communication Technologies
- Physical Sciences › Engineering › Biomedical Engineering › Analog and Mixed-Signal Circuit Design
- Keywords
- low-IF receiver, Bluetooth Low Energy, preamble detection, ultra-low power, digital receiver, frequency offset tolerance, 130 nm CMOS
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