资料介绍
RF资料 Sheet
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RING OSCILLATOR EXAMPLE
Determine the frequency of operation of a 7-stage free running ring oscillator using the
following MOSFET device data and a 3V supply rail. Also assume that a 1pF capacitor
is connected to each output to ground.
Cmosn
KPn=6.32664E-5; Vto=0.622490; W=8um; L=5um
Cmosp
KPp=2.63544E-5; Vto=-0.63025; W=12um; L=5um
Calculate Rn & Rp
VDD L VDD
Rn =
KPn W W KPn .(VDD VTHN )2
. (VDD VTHN )
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