Design a fourth-order sigma-delta modulator

Status
Not open for further replies.

shaq

Full Member level 5
Joined
Jul 23, 2005
Messages
311
Helped
14
Reputation
28
Reaction score
4
Trophy points
1,298
Activity points
3,397
Dear all,

When I design a fourth-order sigma-delta modulator, what kind of issues should I need to take care?

And, can someone tell me the design-flow of high-order sigma-delta modulator?

Thanks so much!!!!


This circuit which I'll design as shown.
 

hehe
opamp dc gain should be larger especially for first stage
and match between error cancel digital filter and analog integrators
 

wued said:
hehe
opamp dc gain should be larger especially for first stage
and match between error cancel digital filter and analog integrators
Click to expand...

How to do the part of error cancellation logic?

Thx for your replying!!!!
 

you should do more behavorial level of work
 

what behavorial level?
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…