Name
Title | ||
|---|---|---|
9.4 A 28nm CMOS digital fractional-N PLL with −245.5dB FOM and a frequency tripler for 802.11abgn/ac radio |
Abstract | ||
|---|---|---|
The fast adaptation of WiFi 802.11ac 256-QAM mode requires RF clocks with very low integrated phase error to deliver good EVM performance. On the other hand, smaller area and lower power are always desired for lower cost and longer battery life. This work presents a 28nm CMOS LO design for dual-band 802.11abgn/ac radio with overall architecture shown in Fig. 9.4.1. It addresses the aforementioned challenges with a low-noise integrated XTAL oscillator, a fractional-N digital PLL utilizing 1) background reference clock-doubler duty-cycle error correction and quantization noise cancellation, 2) non-periodic DCO dithering and compensation, and an offset LO frequency plan based on a self-mixing frequency tripler. The PLL design achieves 0.36° integrated phase error or 0.17ps rms jitter while consuming 9.5mW, leading to a record FOM of -245.5dBforfrac-N PLLs. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/ISSCC.2015.7062978 | Solid- State Circuits Conference - |
Keywords | Field | DocType |
cmos digital integrated circuits,digital phase locked loops,error correction,frequency multipliers,jitter,quadrature amplitude modulation,radiofrequency oscillators,wireless lan,cmos lo design,cmos digital fractional-n pll design,evm performance,fom,rf clocks,wi-fi 802.11ac 256-qam mode,background reference clock-doubler duty-cycle error correction,battery life,dualband 802.11abgn-ac radio,frequency tripler,low-noise integrated xtal oscillator,nonperiodic dco compensation,nonperiodic dco dithering,offset lo frequency plan,phase locked loops,power 9.5 mw,quantization noise cancellation,self-mixing frequency tripler,size 28 nm,very low integrated phase error,oscillators,noise,cmos integrated circuits | Phase-locked loop,Computer science,Electronic engineering,CMOS,Error detection and correction,Jitter,Dither,Quantization (signal processing),Battery (electricity),Electrical engineering,Offset (computer science) | Conference |
Citations | PageRank | References |
1 | 0.40 | 1 |
Authors | ||
9 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Xiang Gao | 1 | 86 | 8.80 |
| Luns Tee | 2 | 37 | 8.39 |
| wanghua wu | 3 | 14 | 2.21 |
| Kun-Seok Lee | 4 | 18 | 2.55 |
| arvind anumula paramanandam | 5 | 18 | 2.55 |
| Anuranjan Jha | 6 | 29 | 3.56 |
| norman liu | 7 | 8 | 1.35 |
| edwin chan | 8 | 1 | 0.40 |
| Li Lin | 9 | 33 | 7.68 |