A 0.5V GFSK 200μW limiter/demodulator with bulk-driven technique for Low-IF bluetooth

Author

Chang-Ming Lai ; Meng-Hung Shen ; Yi-Shuan Wu ; Po-Chiun Huang

Author_Institution

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

fYear

2012

fDate

12-14 Nov. 2012

Firstpage

321

Lastpage

324

Abstract

This paper presents a low-voltage IF processor including a limiter and a DLL-based demodulator for bluetooth receiver. The limiter amplifies the received IF signals with constant envelope. The demodulator detects and manipulates the edges of the IF signal. To achieve 0.5V operation the bulk-driven technique are extensively used in amplifier design nd more digital-like operations are used in demodulator. With the IF frequency of 3MHz, the power consumption of the limiter and demodulator is only 200μW. The core area is 0.36 mm² using a standard 0.18-μm CMOS process. Measurement result shows that a 18.7-dB input signal-to-noise ratio is obtained for a 0.1% bit error rate.

Keywords

Bluetooth; CMOS analogue integrated circuits; amplifiers; delay lock loops; demodulators; error statistics; frequency shift keying; low-power electronics; radio receivers; CMOS process; DLL-based demodulator; GFSK demodulator; GFSK limiter; IF frequency; IF signals; amplifier design; bit error rate; bluetooth receiver; bulk-driven technique; constant envelope; digital-like operations; frequency 3 MHz; input signal-to-noise ratio; low-IF bluetooth; low-voltage IF processor; power 200 muW; power consumption; size 0.18 mum; voltage 0.5 V;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid State Circuits Conference (A-SSCC), 2012 IEEE Asian

Conference_Location

Kobe

Type

conf

DOI

10.1109/IPEC.2012.6522690

Filename

6522690