An Interference-Resilient BLE-Compatible Wake-Up Receiver Employing Single-Die Multi-Channel FBAR-Based Filtering and a 4-D Wake-Up Signature
This article presents a Bluetooth low energy (BLE) compatible wake-up receiver (WuRX) that simultaneously achieves low power, high sensitivity, and interference resiliency. Interference resilience is achieved by detecting a 4-D wake-up signature based on the hopping pattern from BLE-compliant advert...
Saved in:
Published in | IEEE journal of solid-state circuits Vol. 56; no. 2; pp. 416 - 426 |
---|---|
Main Authors | , |
Format | Journal Article |
Language | English |
Published |
New York
IEEE
01.02.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | This article presents a Bluetooth low energy (BLE) compatible wake-up receiver (WuRX) that simultaneously achieves low power, high sensitivity, and interference resiliency. Interference resilience is achieved by detecting a 4-D wake-up signature based on the hopping pattern from BLE-compliant advertising events, while low power and high sensitivity are achieved by filtering each advertising channel via a single-die three-channel FBAR filter and down-converting packet energy via a designed integer-<inline-formula> <tex-math notation="LaTeX">N </tex-math></inline-formula> frequency plan. Implemented in 65 nm CMOS, the proposed WuRX achieves a sensitivity of −85 dBm and a signal-to-interference ratio (SIR) of −60 dB while consuming 220 <inline-formula> <tex-math notation="LaTeX">\mu \text{W} </tex-math></inline-formula> from a 0.5 V supply. |
---|---|
ISSN: | 0018-9200 1558-173X |
DOI: | 10.1109/JSSC.2020.3012892 |