Oct 19, 2017
11:22 PM
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Oct 19, 2017
11:22 PM
I recognize that it is normal that the input voltage to the RESET# pin is High when FX3 is operating.
However, due to other circuits, the input voltage may fluctuate between 1.5V and 1.9V when FX3 is operating at the customer's board now.
Is there any problems in this case?
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- Tags:
- cyusb3014-bzxi
1 Solution
Anonymous
Not applicable
Oct 26, 2017
12:42 AM
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Oct 26, 2017
12:42 AM
Hi,
Please refer to Table 8 (DC Specifications) in FX3 Datasheet. If your VIO1 is 3.3V, then Vioh ranges fromm 0.625 * VIO1 to VIO1 + 0.3, that is 2V to 3.6V
So the fluctuations in your board might cause problem. We recommend you to rework your board and provide required isolation.
Regards,
- Madhu Sudhan
3 Replies