Jan 3, 2004 #1 T tctsai Junior Member level 1 Joined Jul 25, 2002 Messages 19 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 15 Would someone tell me what's the relation among the settling time of synthesizer, carrier frequency and signal bandwith.
Would someone tell me what's the relation among the settling time of synthesizer, carrier frequency and signal bandwith.
Jan 3, 2004 #2 flatulent Advanced Member level 6 Joined Jul 19, 2002 Messages 4,624 Helped 489 Reputation 980 Reaction score 151 Trophy points 1,343 Location Middle Earth Activity points 46,689 It depend on the synthesizer. Generally it uses PLL methods and so the time to change frequency is in round numbers 2 or 3 times the inverse of the PLL loop bandwidth. For DDS type generators it is much less than one sine wave cycle time.
It depend on the synthesizer. Generally it uses PLL methods and so the time to change frequency is in round numbers 2 or 3 times the inverse of the PLL loop bandwidth. For DDS type generators it is much less than one sine wave cycle time.
Jan 4, 2004 #3 S sinianfriend Newbie level 4 Joined Sep 21, 2003 Messages 5 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 40 Tset=(2.5~3)/BW, BW is the bandwidth of PLL.