Title :
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
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;
Conference_Titel :
Custom Integrated Circuits Conference, 2004. Proceedings of the IEEE 2004
Print_ISBN :
0-7803-8495-4
DOI :
10.1109/CICC.2004.1358732
