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This paper describes a novel divide-by-32/33 dual-modulus prescaler(DMP).Here,a new combination of DFF has been introduced in the DMP.By means of the cooperation and coordination among three types,DFF, SCL,TPSC,and CMOS static flip-flop,the DMP demonstrates high speed,wideband,and low power consumption with low phase noise.The chip has been fabricated in a 0.18-μm CMOS process of SMIC.The measured results show that the DMP’s operating frequency is from 0.9 to 3.4 GHz with a maximum power consumption of 2.51 mW under a 1.8 V power supply and the phase noise is -134.78 dBc/Hz at 1 MHz offset from the 3.4 GHz carrier.The core area of the die without PAD is 57×30μm~2.Due to its excellent performance,the DMP could be applied to a PLL-based frequency synthesizer for many RF systems,especially for multi-standard radio applications.
This paper describes a novel divide-by-32/33 dual-modulus prescaler (DMP). Here, a new combination of DFF has been introduced in the DMP.By means of the cooperation and coordination among three types, DFF, SCL, TPSC , and CMOS static flip-flop, the DMP demonstrates high speed, wideband, and low power consumption with low phase noise. The chip has been fabricated in a 0.18-μm CMOS process of SMIC. The measured results show that the DMP’s operating frequency is from 0.9 to 3.4 GHz with a maximum power consumption of 2.51 mW under a 1.8 V power supply and the phase noise is -134.78 dBc / Hz at 1 MHz offset from the 3.4 GHz carrier. The core area of the die without PAD is 57 × 30μm ~ 2.Due to its excellent performance, the DMP could be applied to a PLL-based frequency synthesizer for many RF systems, especially for multi-standard radio applications.