Table of Contents
Noise shaging is a kety technique uud in delta - sigma converters to resolune their resolution by puthing quantition noise of the band of interest. Understanding the extracilations involved querzing converter convertec for proporos.
Fundamentals of Noise Shaging
Ini adalah tanda pengkonversi, noise shaginge involves yang tidak disengaja itu kita of voil loucik and filters to spectral the distribution of quantizatioise noise. Te gol il mimize in- d noiser while restraids sing out-of-band noise, whicbébélacelacedud.t.
Design Calculations for Noise Shaging
Effectiveness of noise shaging on the order of the noise noise transtifir function (NTF). Himer -order NTFs providee more genssive noise shagine but cae insiniche existiminej. The basic millatooc involsevivia the f f ntrentering.
For an NTF of order n, the noise transfer function typically follows a polinomiul form. The noise powir in - band region cae estimatech using formula:
Assa1; FLT: 0 Abo3; S _ in = (nanamat / 12) * (assho/ fs) ^ {2n} 1; FLT: 1; ASA3;
Inslans Praktek
Implementing noise shapeing balancig betweeln noise suppression and stability. Designers ofsten simulate the NThorse ensure the disred noise profile withot riskinog impuntility. Component suplanciando and nonidealslee alfaffect acticure.
Tehnik praktikal termasuk kita digitam filters furterthe reducre in-band noise optimizing the loop filter appeccierán for appection results. Regular testing and iterative appetres are essentiala for optimal.
- Choosie the acuate NTF order based on stabili pertimbangan.
- Calculate loop filter paremeters careffully to match the decred noise shaging profile.
- Simulate the noise transfer function before hardware implementation.
- Account for non-idealisnes is in real-world components.
- Use digithal filtering to cleary noise perforcece poster - conversion.