This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
1. AVDD 与 AVSS分别提供+2.5V与-2.5V;DVDD与DVSS之间供3,3V;
请外请参考评估板中的一些, www.ti.com/.../sbau143c.pdf
2. 从电池电压到板上电源可以考虑如下方案
3.6V~7.2V_Input------|
|-------------> TPS62120---------3.3V
|-- TLV70025 -------------------> P_A2V5
|TPS60403-------------------> N_A2V5
+2.5V接正电压供电AVDD, -2.5V接负电压供电AVSS, 3.3V接DVDD(DGND即0V数字GND), REFP/REFN接参考电压(如选参考电压2.5V, 可以REFP接2.5V, REFN接0V,参考电压要用高精度参考源芯片,如REF5025).