wuwoze
Junior Member level 1
0.18um divider ghz
Hi guys,
I have implemented a ring oscillator at 45nm technology node. The ring oscillator has 11 stages of inverter, and the speed of the ring oscillator is 9GHz. The output is connected to a DFF-based divider, also at 45nm technology node, and the frequency is divided by 2 nicely. But all these are only in Spectre simulation. I wonder if in real world that the DFF-based divider can divide that range of frequency (8GHz ~ 11GHz).
I have done more simulation on the DFF-based divider, and it is shown that the divider could divide frequency of up till 12GHz.
In 45nm technology node, VDD is 0.9V.
Thank you!!
Added after 2 hours 57 minutes:
Will there be any kind of high speed problem?
Will there be like inductance, capacitance, or resistance problem?
Sorry I am not good in analog design.
Thanks.
Hi guys,
I have implemented a ring oscillator at 45nm technology node. The ring oscillator has 11 stages of inverter, and the speed of the ring oscillator is 9GHz. The output is connected to a DFF-based divider, also at 45nm technology node, and the frequency is divided by 2 nicely. But all these are only in Spectre simulation. I wonder if in real world that the DFF-based divider can divide that range of frequency (8GHz ~ 11GHz).
I have done more simulation on the DFF-based divider, and it is shown that the divider could divide frequency of up till 12GHz.
In 45nm technology node, VDD is 0.9V.
Thank you!!
Added after 2 hours 57 minutes:
Will there be any kind of high speed problem?
Will there be like inductance, capacitance, or resistance problem?
Sorry I am not good in analog design.
Thanks.