Title :
A Single-VCO Fractional-N Frequency Synthesizer for Digital TV Tuners
Author :
Yang, Yu-Che ; Lee, Fang-Ting ; Lu, Shey-Shi
Author_Institution :
Nat. Taiwan Univ., Taipei
Abstract :
A single-VCO fractional-N frequency synthesizer is designed for DVB-T and ISDB-T Digital TV tuners. This frequency synthesizer architecture can cover all the frequency bands for both standards with only one VCO and thus the chip area as well as the power consumption can be greatly reduced. The synthesizer was fabricated in a 0.18 mum CMOS process with a 2.2 V power supply and occupies an area of 1.5 mm2. The loop bandwidth is 300 kHz and the total setting time is smaller than 70 mus.
Keywords :
digital television; frequency synthesizers; tuning; voltage-controlled oscillators; bandwidth 300 kHz; digital TV tuner; frequency synthesizer architecture; loop bandwidth; size 0.18 mum; voltage 2.2 V; voltage-controlled oscillator; Communication standards; Data communication; Digital TV; Digital multimedia broadcasting; Digital video broadcasting; Energy consumption; Frequency synthesizers; Multiplexing; Tuners; Voltage-controlled oscillators; Digital TV; fractional-N; frequency synthesizer; phase-locked loops; tuner;
Conference_Titel :
Microwave Symposium, 2007. IEEE/MTT-S International
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0688-9
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2007.380568
