Title :
Ultra-Wide Locking Range Regenerative Frequency Dividers With Quadrature-Injection Current-Mode-Logic Loop Divider
Author :
Yu-Sheng Lin ; Cheng-Han Wu ; Chia-Chen Huang ; Chun-Lin Lu ; Yeong-Her Wang
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng-Kung Univ., Tainan, Taiwan
Abstract :
The ÷ 3 and ÷ 5 regenerative frequency dividers (RFDs) with ultra-wide locking ranges are presented. The proposed dividers were fabricated by a TSMC 90 nm CMOS process, using ÷ 2 and ÷ 4 quadrature-injected current-mode-logic loop dividers to widen the locking ranges. The dividers also achieved quadrature input and quadrature output. Using a 1.2 V supply voltage, the power consumptions of the ÷ 3 and the ÷ 5 divider cores were 10.2 and 14.8 mW, respectively. Without using the tuning techniques, the measured locking ranges for the ÷ 3 and the ÷ 5 dividers were from 9 to 14.7 GHz (48.1%) and 7.2 to 19 GHz (90.1%), respectively. The phase deviation of the quadrature outputs for the two dividers were less than 0.8 ° and 1.1 °. Compared with the reported data, the outstanding figure-of-merit values of the proposed ÷ 3 and ÷ 5 RFDs can be observed.
Keywords :
CMOS integrated circuits; circuit tuning; cores; current-mode circuits; frequency dividers; integrated circuit design; integrated circuit measurement; logic circuits; microwave integrated circuits; RFD; TSMC CMOS process; core; frequency 7.2 GHz to 19 GHz; integrated circuit design; phase deviation; power 10.2 mW; power 14.8 mW; power consumption; quadrature-injection current-mode-logic loop divider; size 90 nm; tuning technique; ultrawide locking range regenerative frequency divider; voltage 1.2 V; CMOS integrated circuits; Frequency measurement; Mixers; Noise measurement; Phase measurement; Phase noise; CMOS; quadrature input and quadrature output (QIQO); quadrature-injected current-mode-logic; regenerative frequency divider;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2013.2291864
