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A Wide Power Supply Range, Wide Tuning Range, All Static CMOS All Digital PLL in 65 nm SOI

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3 Author(s)
Tierno, J.A. ; IBM Thomas J. Watson Res. Center, Yorktown Heights ; Rylyakov, A.V. ; Friedman, D.J.

An all static CMOS ADPLL fabricated in 65 nm digital CMOS SOI technology has a fully programmable proportional-integral-differential (PID) loop filter and features a third order delta sigma modulator. The DCO is a three stage, static inverter based ring oscillator programmable in 768 frequency steps. The ADPLL lock range is 500 MHz to 8 GHz at 1.3 V and 25degC, and 90 MHz to 1.2 GHz at 0.5 V and 100degC. The IC dissipates 8 mW/GHz at 1.2 V and 1.6 mW/GHz at 0.5 V. The synthesized 4 GHz clock has a period jitter of 0.7 ps rms, and long term jitter of 6 ps rms. The phase noise under nominal operating conditions is 112 dBc/Hz measured at a 10 MHz offset from a 4 GHz center frequency. The total circuit area is 200 mum 150 mum.

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:43 ,  Issue: 1 )