1. A -90 dBm sensitivity 0.13 μm CMOS bluetooth transceiver operating in wide temperature range
- Author
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Kenichi Agawa, Hiroyuki Kobayashi, Go Urakawa, Nobuaki Otsuka, M. Hamada, Nobuyuki Itoh, S. Ishizuka, Arai Makoto, Masayuki Koizumi, Yutaka Shimizu, T. Nagano, and Hideaki Majima
- Subjects
Voltage-controlled oscillator ,Materials science ,CMOS ,business.industry ,Low IF receiver ,Transmitter ,Electrical engineering ,Linearity ,Biasing ,Transceiver ,business ,Sensitivity (electronics) - 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.
- Published
- 2007