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: . S5 O; h0 b7 E( w 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 .3 P% c0 x ?. B/ G6 Q$ _
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.