TY - JOUR
T1 - System Design of a 2.75-mW Discrete-Time Superheterodyne Receiver for Bluetooth Low Energy
AU - Binsfeld Ferreira, Sandro
AU - Kuo, Feng-Wei
AU - Babaie, Masoud
AU - Bampi, Sergio
AU - Staszewski, Robert Bogdan
PY - 2017
Y1 - 2017
N2 - This paper introduces a system-level approach to develop the first-ever fully discrete-time (DT) superheterodyne receiver (RX) for Internet-of-Things applications, such as Bluetooth low energy (BLE). It exploits fast switching speed and low internal capacitances of deep-nanoscale CMOS devices to realize a high intermediate-frequency (IF) architecture based on switched-capacitor-based charge-domain bandpass filtering. Power consumption is minimized by aggressively reducing the size of MOS devices and judiciously applying a sampling-rate decimation. The resultant increase in the flicker noise is mitigated by placing the IF frequency beyond the flicker corner frequency. Likewise, the decimation-induced aliasing is mitigated by DT filtering of preceding stages. The BLE RX is fully standard-compliant and achieves a record-low-power consumption of 2.75 mW (including its local oscillator) while delivering the state-of-the-art performance: 6.5-dB noise figure and -19-dBm third-order input intercept point, with a direct antenna connection and thus without the typical external bandpass filters.
AB - This paper introduces a system-level approach to develop the first-ever fully discrete-time (DT) superheterodyne receiver (RX) for Internet-of-Things applications, such as Bluetooth low energy (BLE). It exploits fast switching speed and low internal capacitances of deep-nanoscale CMOS devices to realize a high intermediate-frequency (IF) architecture based on switched-capacitor-based charge-domain bandpass filtering. Power consumption is minimized by aggressively reducing the size of MOS devices and judiciously applying a sampling-rate decimation. The resultant increase in the flicker noise is mitigated by placing the IF frequency beyond the flicker corner frequency. Likewise, the decimation-induced aliasing is mitigated by DT filtering of preceding stages. The BLE RX is fully standard-compliant and achieves a record-low-power consumption of 2.75 mW (including its local oscillator) while delivering the state-of-the-art performance: 6.5-dB noise figure and -19-dBm third-order input intercept point, with a direct antenna connection and thus without the typical external bandpass filters.
KW - Bandpass filter (BPF)
KW - Bluetooth low energy (BLE)
KW - charge sharing (CS)
KW - discrete-time receiver (DT-RX)
KW - Internet of Things (IoT)
KW - superheterodyne
KW - switched capacitor (SC)
KW - ultra-low-power (ULP)
UR - http://www.scopus.com/inward/record.url?scp=85015622263&partnerID=8YFLogxK
UR - http://resolver.tudelft.nl/uuid:eb044b4f-6ac0-4a26-9955-6ddf511c4d61
U2 - 10.1109/TMTT.2017.2668407
DO - 10.1109/TMTT.2017.2668407
M3 - Article
AN - SCOPUS:85015622263
SN - 0018-9480
VL - 65
SP - 1904
EP - 1913
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
IS - 5
M1 - 7879293
ER -