delta sigma ADC 设计流程？？？

sdmout

Just some of my experience:
1. Synthesize the NTF according to the specifications using MATLAB;
2. Build the SDM topology in SIMULINK, and simulate including non-idealities;
3. Map the coefficients to R and C (continuous-time); or C array (discrete);
4. Build the SDM circuit using ideal SPICE micro-models (i.e an amplifier can be modeled as VCVG, and switched can be modeled as voltage controlled resistor);
5. Design each building block, and substitute into the macro-model circuits;
6. Eventually all circuit level is designed, and sweep the process corner.

jimipage

谢谢，SDMOUT

rong00i8

回复 1# jimipage


  有具体指标吗，大体步骤：
1.完全清楚原理，以及你要采用的结构；
2.利用sdtoolbox综合NTF，首先确定各个系数，前馈或者反馈的；
3.行为仿真，得到大致的snr范围，如果电路设计的好，电路仿真结果就基本一致；
4.做电路，版图，仿真。

raylee

Gooooooooooooood

jeffej

good, just learning SD ADC !!!

任性

thank you, 11# and 13#

任性

about this, you can ref Page 51, Chapter 10, EE315B for Sigma-delta ADC Design Flow

ztwd520

   

任性 发表于 2021-12-4 11:16
about this, you can ref Page 51, Chapter 10, EE315B for Sigma-delta ADC Design Flow

哥们，可以加个好友吗

任性

   

ztwd520 发表于 2021-12-27 17:20
哥们，可以加个好友吗

for what

ztwd520

   

任性 发表于 2021-12-27 19:41
for what

想请教一下sigma delta