Title :
A -90 dBm sensitivity 0.13 μm CMOS bluetooth transceiver operating in wide temperature range
Author :
Agawa, Kenichi ; Majima, Hideaki ; Kobayashi, Hiroyuki ; Koizumi, Masayuki ; Ishizuka, Shinichiro ; Nagano, Takeshi ; Arai, Makoto ; Shimizu, Yutaka ; Urakawa, Go ; Itoh, Nobuyuki ; Hamada, Mototsugu ; Otsuka, Nobuaki
Author_Institution :
Toshiba Corp., Kawasaki
Abstract :
A 2.4 GHz 0.13 μm CMOS transceiver achieving high RX sensitivity and high-quality TX signals between -40°C and +90°C is presented. A low-IF receiver and direct-conversion transmitter architecture is employed. A temperature compensated receiver chain including LNA achieves a sensitivity of -89.6 dBm even in the worst environmental condition. Linearity optimization for the transmitter chain including a variable biasing circuit in PA reduces the second harmonics of TX signals so that it suppresses the VCO pulling and keeps the carrier frequency drift within 18 kHz.
Keywords :
Bluetooth; CMOS integrated circuits; UHF integrated circuits; low noise amplifiers; transceivers; voltage-controlled oscillators; CMOS Bluetooth transceiver; LNA; RX sensitivity; VCO; carrier frequency drift; direct-conversion transmitter architecture; frequency 2.4 GHz; high-quality TX signals; linearity optimization; low-IF receiver; size 0.13μm; temperature -40 C to 90 C; temperature compensation; Band pass filters; Bluetooth; CMOS technology; Power supplies; Switches; Temperature distribution; Temperature sensors; Transceivers; Transmitters; Voltage-controlled oscillators;
Conference_Titel :
Custom Integrated Circuits Conference, 2007. CICC '07. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-0786-6
Electronic_ISBN :
978-1-4244-1623-3
DOI :
10.1109/CICC.2007.4405817
