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What are the advantages of LC Oscillator in High Frequency application?

时间:04-11 整理:3721RD 点击:
Hi Guys:

What is the advantages of LC Oscillator in High Frequency application besides contributing to high Q factor?

Thank You

Rgds

smaller area if we use onchip inductor or cap.

LC oscillators cant be boasted of high Q factor as we have crystal oscillator available of very high Q.
But as currently crystals oscillators are available only till 50Mhz, hence for higher frequency we switch to LC oscilllators.
There advantages lie in their smaller size and ease of designing.
Any complex oscillator always uses the same formula for its components.
Also these are very cheap and provide satisfactory performance if designed properly.

Hi Guys:

I would appreciate if the discussion is on the advantage of LC Osc in comparison of ring Osc in CMOS technology. How feasible is it to use the bondwire inductance in realizing the LC resonators?. Thank You

Rgds

the phase noise of the LC oscillator is much better than ring oscillator
but they consume much area " for spiral inductor " and " MOS varactor "

but with current technologies the use of Cu insted of AL made qualty factor of the inductor in high

Hi Guys:

Any idea on the bond wire inductors... How feasible in utilizing it as a resonant component, it is reported that this bond wire inductor varies from 1nH to 1.6nH. Thanks in advance

Rgds

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