Title :
A 4-54GHz Static Frequency Divider with Back-Gate Coupling
Author :
Chang, Jung-Yu ; Liu, Shen-Iuan
Author_Institution :
Nat. Taiwan Univ., Taipei
Abstract :
A static frequency divider by using the back-gate coupling technique is presented. The proposed circuit has been fabricated in a 90 nm CMOS process. Driven by the differential signals, the measured operating frequency range of the conventional circuit is from 4 GHz to 48 GHz, while that of the proposed circuit is from 4GHz to 54GHz by choosing the same device size. The measurement result shows that the proposed static frequency divider improves the operating frequency range by 10% with only a little overhead. The maximum power consumption is 39.7 mW from a 1.5 V supply voltage.
Keywords :
CMOS digital integrated circuits; frequency dividers; microwave frequency convertors; millimetre wave frequency convertors; CMOS process; back-gate coupling technique; circuit fabrication; differential signals; frequency 4 GHz to 54 GHz; operating frequency range improvement; power 39.7 mW; power consumption; size 90 nm; static frequency divider; voltage 1.5 V; CMOS process; Capacitance; Clocks; Coupling circuits; Frequency conversion; Frequency measurement; Latches; Phase locked loops; Voltage; Voltage-controlled oscillators;
Conference_Titel :
VLSI Design, Automation and Test, 2007. VLSI-DAT 2007. International Symposium on
Conference_Location :
Hsinchu
Print_ISBN :
1-4244-0583-1
Electronic_ISBN :
1-4244-0583-1
DOI :
10.1109/VDAT.2007.373247
