Aug 10, 2004 #1 L lijulia Member level 3 Joined Jan 5, 2003 Messages 57 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 468 transistor in the switch-cap bank of wide-band vco? if I use .5um siGe process. This optimum length is based on the tuning range and operating frequency, why?
transistor in the switch-cap bank of wide-band vco? if I use .5um siGe process. This optimum length is based on the tuning range and operating frequency, why?
Aug 10, 2004 #2 M modern_analog Newbie level 5 Joined Jul 11, 2004 Messages 9 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 88 Are you talking about the switches which switch in and out some caps. In that case, remember that the cap (Cgd) pf these switches will add onto your caps and cause a loss in frequency. Also, you want low R which means low L. Hence a trade-off
Are you talking about the switches which switch in and out some caps. In that case, remember that the cap (Cgd) pf these switches will add onto your caps and cause a loss in frequency. Also, you want low R which means low L. Hence a trade-off