DESIGN OF A FULLY INTEGRATED 2.4GHz FREQUENCY PLL SYNTHESIZER FOR ZigBee TRANSCEIVER APPLICATION

作者：Li, Di^*; Yang, Yintang; Zhou, Duan; Li, Yani; Wu, Xiaopeng

来源：Journal of Circuits, Systems, and Computers, 2014, 23(10): 1450137.

DOI：10.1142/S0218126614501370

• ZigBee
• PLL synthesizer
• voltage control oscillator

A 2.4-GHz fully integrated frequency synthesizer is presented in this paper for Low-IF ZigBee (IEEE802.15.4) transceiver applications. The frequency synthesizer meets the system requirement of 2.4-2.4835GHz frequency range with a frequency resolution of 5 MHz. The automatic-amplitude control (AAC) technique is employed for the voltage-controlled oscillator (VCO) which helps to optimize the output amplitude of the VCO over voltage, process and temperature variations. The chip has been fabricated in a 0.18 mu m complementary metal oxide semiconductor (CMOS) process using a single poly layer, four metal layers and metal-insulator-metal (MIM) capacitors. The synthesized has a current dissipation of 4.7 mA from a 1.8V power supply and occupies an area of 1 mm(2) x 0.85 mm(2). Measurement results show that the phase noise are -82 dBc/Hz-100 kHz offset and -109dBc/Hz-1MHz offset respectively.

• 出版日期2014-12
• 单位西安电子科技大学