Title :
Highly-linear FM transmitter for mobile application in 65nm CMOS
Author :
Ginsburg, Brian P. ; Nagaraj, Krishnasawamy ; Nayak, Neeraj ; Ozgun, Mehmet ; Subburaj, Karthik ; Murali, Sriram ; Ledesma, Francisco
Author_Institution :
Texas Instrum., Dallas, TX, USA
Abstract :
An FM frequency synthesizer and antenna driver with >;63dB SNR, <;0.1% THD, and -101dBc out-of band emissions at 124 dBμV output swing in 65 nm digital CMOS is described. The optimized FLL incorporates a DCO with a highly linear capacitor array and flicker noise reduction techniques. Cascaded filtering and a segmented driver improve efficiency and tuning range with minimal high-order distortion.
Keywords :
CMOS digital integrated circuits; antennas; capacitors; filtering theory; flicker noise; frequency locked loops; frequency modulation; frequency synthesizers; mobile communication; oscillators; radio transmitters; CMOS technology; DCO; FLL; FM frequency synthesizer; antenna driver; cascaded filtering; digitally controlled oscillator; flicker noise reduction technique; frequency locked loop; high-order distortion; highly linear capacitor array; highly-linear FM transmitter; mobile application; out-of- band emission; size 65 nm; Antennas; Arrays; Capacitors; Driver circuits; Filtering; Frequency modulation; Tuning; driver circuits; frequency locked loops; frequency modulation; power amplifier;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2011 IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-8293-1
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2011.5940712
