Title :
A high linear low flicker noise 25% duty cycle LO I/Q mixer for a FM radio receiver
Author :
Lee, Jae-Seung ; Jeong, Chang-Jin ; Jang, Yeong-Shin ; Lee, In-Young ; Lee, Sang-Sung ; Han, Sok-Kyun ; Lee, Sang-Gug
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
In this paper, a low power, low flicker noise and high IIP3 I/Q mixer for 76-108MHz EURO/US/Korea/Japan FM radio receiver applications is presented. The proposed mixer includes a transconductance (Gm) stage, a current mode passive switching stage driven by a 25% duty cycle LO, a transimpedance amplifier (TIA), and a 25% duty cycle LO generator. Simulation results show a 9.2dB DSB noise figure at 50kHz, 13dBm IIP3, and 23dB voltage gain, respectively, while drawing only 800uA including a LO generator from a 1.2-V supply in a standard 65nm CMOS technology.
Keywords :
CMOS integrated circuits; flicker noise; frequency modulation; low-power electronics; mixers (circuits); oscillators; radio receivers; CMOS technology; FM radio receiver; LO I/Q mixer; current 800 muA; current mode passive switching stage; duty cycle LO generator; flicker noise; frequency 76 MHz to 108 MHz; size 65 nm; transconductance stage; transimpedance amplifier; voltage 1.2 V; CMOS integrated circuits; Linearity; Mixers; Noise; Receivers; Switches; Transistors;
Conference_Titel :
Circuits and Systems (ISCAS), 2011 IEEE International Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4244-9473-6
Electronic_ISBN :
0271-4302
DOI :
10.1109/ISCAS.2011.5937834
