A 4 mu W dual-modulus frequency divider with 198 % locking range for MICS band applications

作者：Jahan M Shahriar^*; Holleman Jeremy

来源：Analog Integrated Circuits and Signal Processing, 2013, 77(3): 549-556.

DOI：10.1007/s10470-013-0150-7

• Frequency divider
• Dual-modulus
• MICS
• ISM
• Low-power
• Locking range

This paper presents the design and performance of an ultra-low-power 4/5 frequency divider based on a CMOS ring oscillator. Measurements show a 198 % locking range (6 MHz-1.3 GHz) for both division ratios at room temperature, covering the MICS band and 433 and 915 MHz ISM bands while consuming only 4.07 mu W from a 1 V supply at 400 MHz. The wide locking range and low power consumption makes it very suitable for ultra-low-power wireless systems. The divider is fabricated in a 90 nm CMOS process and occupies 45 mu m(2) of area.

• 出版日期2013-12