Please let me confirm meaning of the following plot.
ADSP-2147x data sheet ( rev.C )
Figure 47. Typical Drive at Junction Temperature.
On the figure, the horizontal axis (X-axis) is "SWEEP (VDDEXT) VOLTAGE (V)".
The graph shows typical I-V characteristics for each driver.
So it does not mean voltage level of the External (I/O) Supply VDDEXT.
It means the voltage level of the output pins.
Is it correct understanding ?