Hi,
we need help with selecting parts. We need a PLL (preferably with integrated VCO) which can output sine-wave in the range of 0.3~1 GHz. Does TI has such an IC? Thanks a lot!
Best,
HP
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Hello Han,
thank you for your interest in our PLL. We multiple PLL for this job.
LMX2571 for low power
LMX2582 for high performance with outstanding VCO low noise
LMX2594 for sync capability with outstanding PLL low noise
All have integrated VCO.
You can use our tool Pllatinum Sim (free download on ti.com) to select a device based on your requirements.
Let us know if you have more questions.
Regards, Simon.
Thank you Simon for your support.
Take LMX2582 for example, It's a nice chip. Its VCO core covers an octave from 3.55 to 7.1 GHz, for our desired frequency range (0.3~1 GHz) the output channel dividers have to be involved which means the output is a square-wave if I understand it correctly. However, what we need is a sine-wave output. Of course we can add additional LPF for that purpose but a direct sine-wave output is more desirable. Do you have any recommendation?
Another requirement from our project is we need perfect phase alignment between the output and the reference input. From thread, it seems the output phase might become not coherent with the reference signal when changing the frequency. Could you please confirm LMX2582's performance on the phase coherence between the output and the reference input?
Thank you!
Best,
HP