Other Parts Discussed in Thread: TDA4VH
Hi TI,
THIS IS A TDA4VH QUESTION.
In the datasheet of TDA4VH, the power supplies having the same voltage are grouped together like 3.3V voltage or 1.8V voltage.The groups have specific power on sequence,for example,1.8V voltage is required to
start ramp-up to VOPR MIN (2ms)and reach to 1.8V before 3ms according to the picture below.
In the PDN, the power rails of the same group has their own sequence,for example,in 1.8V voltage,VDA_PLL_1V8 and VDA_PHY_1V8 have different TSTR. Is this sequence required or all we care is 1.8 voltage start ramp-up and finish between 2ms to 3ms? And same question for other group.