Title :
An all-digital 8-DPSK polar transmitter with second-order approximation scheme and phase rotation-constant digital PA for bluetooth EDR in 65nm CMOS
Author :
Kobayashi, Hiroyuki ; Kousai, Shouhei ; Yoshihara, Yoshiaki ; Hamada, Mototsugu
Author_Institution :
Toshiba Semicond., Kawasaki, Japan
Abstract :
This paper reports on a polar transmitter that is capable of 8-DPSK modulation for the Bluetooth EDR standard. It implements the second-order approximation scheme in the gain calculation of the DCO and a phase rotation-constant digital PA. It achieves DEVM of 6.1% at 0dBm output in sending 8-DPSK signal for Bluetooth EDR, drawing 35mA from a 1.2V supply and occupies 0.75χ0.75mm2.
Keywords :
Bluetooth; CMOS digital integrated circuits; approximation theory; differential phase shift keying; radio transmitters; Bluetooth EDR standard; CMOS technology; DCO; DEVM; all-digital 8-DPSK polar transmitter; phase rotation-constant digital PA; second-order approximation; size 65 nm; voltage 1.2 V; Approximation methods; Bluetooth; CMOS integrated circuits; Frequency modulation; Phase locked loops; Power generation;
Conference_Titel :
Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2011 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-61284-303-2
DOI :
10.1109/ISSCC.2011.5746270
