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A Quantization Noise Suppression Technique for 16Fractional-78Frequency Synthesi
本文首次实现了一种用于1/6分数频率合成器的量化噪声抑制技术，采用1/1.5分频单元减小频率步进，降低量化噪声6dB。
0.18μm CMOS, 47.8mW, 100dBc/Hz@10kHz, 124dBc/Hz@1MHz, <1Hz频率分辨率, <10μs锁定时间
量化噪声抑制分数频率合成器1/1.5分频单元WLAN 802.11aWiMAX 802.16e
▸首次实现1/6分数频率合成器的量化噪声抑制技术
▸采用1/1.5分频单元减小频率步进
▸量化噪声降低6dB
Abstract
The first circuit implementation of quantization noise
suppression technique for /1/6 fractional-
frequency synthe-
sizers using reduced step size of frequency dividers is presented
in this paper. This technique is based on a 1/1.5 divider cell which
can reduce the step size of the frequency divider to 0.5 and thus the
reduced step size suppresses the quantization noise by 6 dB. This
frequency synthesizer is intended for a WLAN 802.11a/WiMAX
802.16e transceiver. This chip is implemented in a 0.1