Dec 15, 2004 #1 J jeanjean Junior Member level 1 Joined May 25, 2004 Messages 15 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 96 about VCXO need help i need the detail to the manufacture of the VCXO,its frequency range from 50M to 80M. thanks
about VCXO need help i need the detail to the manufacture of the VCXO,its frequency range from 50M to 80M. thanks
Dec 16, 2004 #2 V vfone Advanced Member level 6 Joined Oct 10, 2001 Messages 5,725 Helped 1,620 Reputation 3,245 Reaction score 1,252 Trophy points 1,393 Activity points 36,356 Re: about VCXO need help This may help: **broken link removed**
Dec 16, 2004 #3 M mckinson Full Member level 2 Joined Sep 3, 2003 Messages 126 Helped 3 Reputation 6 Reaction score 3 Trophy points 1,298 Activity points 1,034 about VCXO need help Hello ,Vfone, Do you know how to calculate the load capacitance of the vcxo ?
Dec 16, 2004 #4 V vfone Advanced Member level 6 Joined Oct 10, 2001 Messages 5,725 Helped 1,620 Reputation 3,245 Reaction score 1,252 Trophy points 1,393 Activity points 36,356 Re: about VCXO need help Load capacitance is the capacitance needed to be placed in series with the crystal to bring the frequency within the calibration tolerance. In the document below you can find the equations of load capacitance, how to keep the ppm variation in the required range: **broken link removed**
Re: about VCXO need help Load capacitance is the capacitance needed to be placed in series with the crystal to bring the frequency within the calibration tolerance. In the document below you can find the equations of load capacitance, how to keep the ppm variation in the required range: **broken link removed**
Jul 21, 2006 #5 C chihhao Full Member level 4 Joined Apr 4, 2004 Messages 204 Helped 4 Reputation 8 Reaction score 3 Trophy points 1,298 Activity points 1,701 Re: about VCXO need help Vfone According to the description of article, "It's important to note here that there's no difference between a series and a parallel crystal, only where it is calibrated by the manufacturer" Who is the manufacturer here ? Crystal manufacturer or product manufacturer (ex: cell phone) ? Thanks a lot.
Re: about VCXO need help Vfone According to the description of article, "It's important to note here that there's no difference between a series and a parallel crystal, only where it is calibrated by the manufacturer" Who is the manufacturer here ? Crystal manufacturer or product manufacturer (ex: cell phone) ? Thanks a lot.