SDAA385 June 2026 TCA9617B
After implementing the updated ICT setup, waveform integrity improved significantly. The worst-case overshoot decreased from 8.62 V to 3.54 V, while the worst-case undershoot improved from -4.28 V to -0.35 V. All measured voltages were now within the datasheet absolute maximum specifications of the device. There exists no more pedestal contention.
Oscilloscope measurements also confirmed that ringing amplitude and transient spike energy were substantially reduced. Following implementation of the new ICT method and the addition of series resistors, no additional I/O damage or stuck-low conditions were observed during production testing.
| Parameter | Measured Value (Before ICT changes) | Measured Value (After ICT changes) | Datasheet Limit |
|---|---|---|---|
| Overshoot | 8.62V | 3.54V | 6.5V |
| Undershoot | -4.28V | -0.35V | -0.5V |