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Hello I changed frequency for 32.768kHz (AB26T) and i designed like attached.
And i set initial inductor current as 10nA, but the oscillation decreased and not started up.
Also, third attached file is open loop gain, phase
but phase doesn't go to 0 degree ....
In the conclusion,
1. Why...
Hi
I want to design crystal oscillator (pierce) but i have in trouble...
Proposed oscillation frequency is around 39MHz
And i used crystal
L~4mH C~4.1fF R~10ohm Co~2pF
C1 C2=20pF(shunt cap for drain to gnd& gate to gnd)
Feedback resistor ~ 1Mohm
Vdd~1.5V
Transistor gm~80u
However, my...
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