| ??? 07/17/06 13:07 Read: times |
#120375 - what do you have on the ports Responding to: ???'s previous message |
Vout is also given to uC and display circuit through 27ohms and ferrite bead and 0.1 uF mlc – Vdd
just a LED and a few other things can easily make ythe uC pull 100mA = 2.7V drop OOPS. Get rid of the resistor (make it 0 ohms) Also, the 100nF cap is pretty much worthless if the traces are much more than 1 cm. I have no objection to the ferrites you use, I do not use them, just the cap. Erik |
| Topic | Author | Date |
| AD7798 with 89S52 - ADC failure | 01/01/70 00:00 | |
| Draw it | 01/01/70 00:00 | |
| Input Protection. | 01/01/70 00:00 | |
| LDOs are prone to oscillate! | 01/01/70 00:00 | |
| ADC failure | 01/01/70 00:00 | |
| what do you have on the ports | 01/01/70 00:00 | |
| Nature of the failure? | 01/01/70 00:00 | |
Nature of failure | 01/01/70 00:00 |