A mixed-signal phase-domain FSK demodulator for BLE single-path low-IF receiver

Author

Cuei-Ling Hsieh ; Chang-Ming Lai ; Guan-Hong Ke ; Liu, Jenny Yi-Chun ; Po-Chiun Huang

Author_Institution

Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan

fYear

2014

fDate

28-30 April 2014

Firstpage

1

Lastpage

4

Abstract

For Bluetooth Low Energy (BLE) application, this paper presents the design and its measurement results of a mixed-signal phase-domain FSK demodulator in a low-IF receiver. The single-path receiver selects the intermediate frequency (IF) at a half of channel bandwidth specific for BLE frequency assignment. The proposed IF signal processing, unlike the conventional frequency discrimination, is implemented by quantizing analog signals with linear-in-phase thresholds. The mixed-signal IF processor successfully demodulates the received signals under 1-MHz data rate. It requires an SNR of 15.5 dB for a bit error rate of 0.1%. The circuits consume 1.1 mA from a single 1.8-V supply voltage with a 0.18-μm CMOS technology.

Keywords

Bluetooth; CMOS integrated circuits; demodulators; error statistics; frequency shift keying; mixed analogue-digital integrated circuits; radio receivers; BLE frequency assignment; BLE single-path low-IF receiver; Bluetooth low energy; CMOS technology; IF signal processing; bit error rate; current 1.1 mA; mixed-signal IF processor; mixed-signal phase-domain FSK demodulator; size 0.18 mum; voltage 1.8 V; Bit error rate; Demodulation; Frequency shift keying; Receivers; Sensors; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Design, Automation and Test (VLSI-DAT), 2014 International Symposium on

Conference_Location

Hsinchu

Type

conf

DOI

10.1109/VLSI-DAT.2014.6834891

Filename

6834891