iccc
Newbie level 4
Hi,
To generate 8 phases clocks, a four stages ring vco is designed as shown in below.
The latchs are supposed not to be too strong or too weak。
However, there is also a start up problem like other ring oscillators.
As I know, ac simulaiton in linear system to guarantee a circuit to oscillate is one way to check the start up problem according to Backhuasen rule.
Can anyone tell me the way to check inverter based ring oscillator strar up issues like this four stages osc?
Many thanks .
ICCC
To generate 8 phases clocks, a four stages ring vco is designed as shown in below.
The latchs are supposed not to be too strong or too weak。
However, there is also a start up problem like other ring oscillators.
As I know, ac simulaiton in linear system to guarantee a circuit to oscillate is one way to check the start up problem according to Backhuasen rule.
Can anyone tell me the way to check inverter based ring oscillator strar up issues like this four stages osc?
Many thanks .
ICCC