A Single-Chip 125-MHz to 32-GHz Signal Source in 0.18-mu m SiGe BiCMOS

作者：Yu Shih An^*; Baeyens Yves; Weiner Joseph; Koc Ut Va; Rambaud Marta; Liao Fang Ren; Chen Young Kai; Kinget Peter R

来源：IEEE Journal of Solid-State Circuits, 2011, 46(3): 598-614.

DOI：10.1109/JSSC.2011.2104551

• Fractional-N
• frequency synthesizer
• mm-wave
• software-defined radio
• ultra wideband
• voltage-controlled oscillator

We present a 4.4-mm(2) single-chip synthesized signal source with 125 MHz to 32 GHz continuous frequency coverage with a minimum frequency step smaller than 10 Hz. The chip is fabricated in a 0.18-mu m SiGe BiCMOS 1P6M technology. A core fractional-N synthesizer using a 20-MHz reference frequency has four LC-VCOs and a 4- to 8-GHz synthesizable range. Post-synthesis blocks extend the frequency coverage up to 32 GHz and down to 125 MHz through frequency multiplication and division. In different operation modes, the chip, including a balanced 50-ohm load driver, consumes from 284 to 498 mW. The phase noise performance achieves -117.6 dBc/Hz at 1-MHz offset from a 6-GHz output frequency and -83 dBc/Hz in-band noise. The integrated phase noise is -28 dBc and the absolute jitter is 1.05 ps(RMS) at 6-GHz output. The jitter is maintained nearly constant (between 0.9 and 1.2 ps(RMS)) across the whole output frequency range.

• 出版日期2011-3