標題: some questions about sigma_delta adc [打印本頁] 作者: 大大山 時間: 2009-10-6 01:37 PM 標題: some questions about sigma_delta adc i have some questions about sigma_delta adc:8 V+ d1 M/ y4 T0 y( v( n
can anyone tell me the relationship between the coefficient of capacitance and the input voltage,thank you!!作者: lqlcug 時間: 2009-10-9 06:19 PM
The input voltage is just limited by the stability(have relativity with architecture) and the Reference Voltage. The coefficient of capacitors decide the stability .4 `) ]% `) o/ T o+ J: T$ [
So someone usually make the system modeling decide the coefficient. there are method such as numeration method , Simulated annealing and so on ,it's very difficult. someone also use the experience to decide the coefficient.