A CMOS gyrator low-IF filter for a dual-mode Bluetooth/ZigBee transceiver [mobile phone applications]

Author

Guthrie, Brian ; Sayers, Tony ; Spencer, Adrian ; Hughes, John

Author_Institution

Philips Res. Lab., Redhill, UK

fYear

2004

fDate

3-6 Oct. 2004

Firstpage

49

Lastpage

52

Abstract

A low-IF polyphase channel filter for a dual-mode Bluetooth/ZigBee transceiver is described. Implemented in a standard 0.18 μm CMOS process, the filter has a fifth-order 0.5 dB equiripple bandpass response and employs novel transconductor and preamplifier designs. It consumes 1 mW and achieves image band rejection ≥33 dB, signal-to-noise ratio of ≥60 dB and input referred third-order intermodulation intercept of ≥17 dBVp. Chip area, including its tuning circuit, is 0.23 mm².

Keywords

Bluetooth; CMOS analogue integrated circuits; band-pass filters; circuit tuning; gyrators; preamplifiers; transceivers; 0.18 micron; 1 mW; CMOS gyrator; dual-mode Bluetooth/ZigBee transceiver; equiripple bandpass response; image band rejection; input referred third-order intermodulation intercept; low-IF filter; mobile phones; polyphase filter; preamplifier; signal-to-noise ratio; transceiver channel filter; transconductors; tuning circuit; Band pass filters; Bluetooth; CMOS process; Gyrators; Mobile handsets; Preamplifiers; Signal to noise ratio; Transceivers; Transconductors; ZigBee;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 2004. Proceedings of the IEEE 2004

Print_ISBN

0-7803-8495-4

Type

conf

DOI

10.1109/CICC.2004.1358732

Filename

1358732