V1-1 - Pull up resistors not strong enough to disable outputs at startup
The 10 kOhm pull up resistors (R1, R11a/b, R12a/b) are not strong enough
to disable outputs at power up. Therefore the design is out of spec.
Issue found by Seven Solutions.
Specification of outputs:
- Output levels: LVTTL, capable of driving +3.3 V over a 50-Ohm load. At power-up the outputs should be in Hi-Z state
- Withstands a continuous short-circuit on all the outputs at the same time
- Replace R1, R11a/b and R12a/b by 4k7