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发表于 2007-4-11 11:52:36
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the circuit for u ref;
[upload=jpg]UploadFile/2007-4/07411@52RD_xtal.jpg[/upload]
it is for the 32.768Khz only, but for the higher freq, the circuit structure is similar,and the buffer select and oscilate tank should be changed;
for another special AP such as TCvcxo and DCXO, you should concern the relation between the temperature shifting and CL adjustment; and also the stability for oscillater ;
one more concern is about the driver capacity and phase noise for RF application;
hope it will be helpful for you! |
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