A 20-GHz phase-locked loop for 40-Gb/s serializing transmitter in 0.13-μm CMOS

被引:35
|
作者
Kim, J [1 ]
Kim, JK [1 ]
Lee, BJ [1 ]
Kim, N [1 ]
Jeong, DK [1 ]
Kim, W [1 ]
机构
[1] Seoul Natl Univ, Seoul 151742, South Korea
关键词
CMOS frequency divider; phase-locked loop (PLL); pulsed latch; reference spur; VCO optimization;
D O I
10.1109/JSSC.2006.870766
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A 20-GHz phase-locked loop with 4.9 ps(pp)/0.65 ps(rms) jitter and -113.5 dBc/Hz phase noise at 10-MHz offset is presented. A half-duty sampled-feed forward loop filter that simply replaces the resistor with a switch and an inverter suppresses the reference spur down to -44.0 dBc. A design iteration procedure is outlined that minimizes the phase noise of a negative-g(m) oscillator with a coupled microstrip resonator. Static frequency dividers made of pulsed latches operate faster than those made of Hip-flops and achieve near 2:1 frequency range. The phase-locked loop fabricated in a 0.13-mu m CMOS operates from 17.6 to 19.4 GHz and dissipates 480 mW.
引用
收藏
页码:899 / 908
页数:10
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