how to decide delta-sigma internal bitwidth?

Status
Not open for further replies.
F

feel_on_on

Full Member level 5
Joined
Apr 29, 2005
Messages
283
Helped
6
Reputation
12
Reaction score
4
Trophy points
1,298
Activity points
3,208
hi,guys
anyone can tell me how to decide delta-sigma internal bitwidth?
 

nobody know how to decide internal bit width in a delta-sigma modulator?
 

i understand that u r asking regarding the order of the DAC AND adc.,
the multi-bit quantizer value can be a design trade-off.,
with low osr,the snr can be increased by incresing the bits.,i think 3-bits is sufficient.,
it will be more clear,if u cud mention what is u r OSR and what is the required SNR ratio for u.,
 

just single bit quantizer,OSR =32,internal bitwidth means in integrater stages what bitwidth I ought to set ?

Added after 1 minutes:

then...tell me how to calculate SNR ?when designing a DAC with single bit delta-sigma modulator?
 

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…