I would like to check if I understood the data seet right.
My use case is as follows:
I- LVDS input (IN1P and IN1N);
II- 8 LVDS outputs
III- VDD and VDDOx = 1.8V
IVa - Input frequency 5MHz, square
IVb - Input frequency 160MHz in bursts (67% active, 33% idle)
Assumptions below based on Table 14 of the data sheet.
1- IDEV is the core (i.e. VDD) current and it does not depend on fout and fin. The table assumes input is LVCMOS (ITTP open) but LVDS input should not impact IDEV significantly.
2- ILVDS is the per output current (i.e. half the VDDOx total current), not dependent on fout and fin.
So I used IDEV = 80mA and ILVDS (total) = 8 * 9mA = 72mA. Therefore total device current consumption is 152mA. I assume the current does not vary significantly between static (i.e. no fin) and normal operation as stated in IVa and IVb above.
So my first question is if the assumptions above are correct. If not, how do I determine the current consumption?
My second question is what is the typical current consumption of this device?