我对比了下您附的原理图,其中有一些参数与下面用户指南中原理图参数不一致,这应该是造成通信没波形的原因,您尝试用下面中原理图参数调试,看是否可以。
因为TI已经不再对LMP91300做支持,所以这个板子的BOM无法提供,一些问题也只能参考现有帖子的回复去寻找答案
0451.LMP91300SWIFEVM User Guide_2013-10-09.pdf
Part Number: TPS51623 TPS51623 does not mark any PIN pin - related information , and there is no specific chip parameters , so customers cannot make a judgment
tps51623.pdf
Part Number: OPA657 Other Parts Discussed in Thread: DEM-OPA-SOT-1A ,
Dear all,
here is my schematic
my PCB design is close to DEM-OPA-SOT-1A
Input is a photomultiplier tube . its parasite capacitance i estimate is 20-30pF ,and so i choose C5=0.25pF.
…
Hello,
The attached application note is about Guidelines for Measuring Audio Power Amplifier Performance. Please refer to the section 5.2 Signal-to-Noise Ratio.
Guidelines for Measuring Audio Power Amplifier.pdf