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A -90 dBm sensitivity 0.13 �m CMOS bluetooth transceiver operating in wide temperature range
By: Koizumi, M.; Kobayashi, H.; Majima, H.; Agawa, K.; Otsuka, N.; Hamada, M.; Ishizuka, S.; Itoh, N.; Urakawa, G.; Shimizu, Y.; Arai, M.; Nagano, T.;
2007 / IEEE / 978-1-4244-0786-6
This item was taken from the IEEE Conference ' A -90 dBm sensitivity 0.13 �m CMOS bluetooth transceiver operating in wide temperature range ' A 2.4 GHz 0.13 �m 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.
Carrier Frequency Drift
Temperature -40 C To 90 C
Frequency 2.4 Ghz
Band Pass Filters
Direct-conversion Transmitter Architecture
High-quality Tx Signals
Cmos Bluetooth Transceiver
Uhf Integrated Circuits
Low Noise Amplifiers
Cmos Integrated Circuits