| ??? 09/20/06 13:45 Read: times |
#124674 - by pass caps Responding to: ???'s previous message |
hi Erik
by pass caps are as close as possible to the mcu. the pcb is a 3cm X 4cm board and the power supply part is seperated from the board that mcu is placed on. there is a 220V/12V transformer placed on the power supply board. the regulator is a standart 7805. there is a 100uF/25V electrolitic and a 10uF tantalium plus a 100nF ceramic capacitor placed before 7805. and there is a 10uf plus 3x100nf ceramic caps are connected to the output of the 7805. the connection of power and mcu card is done by a 3cm cable. |
| Topic | Author | Date |
| aduc 848 noise immunity | 01/01/70 00:00 | |
| Reset. | 01/01/70 00:00 | |
| reset configuration | 01/01/70 00:00 | |
| It is unreasonable to compare | 01/01/70 00:00 | |
| is aduc84x fragile? | 01/01/70 00:00 | |
| re;fragile | 01/01/70 00:00 | |
| how long are the traces | 01/01/70 00:00 | |
| by pass caps | 01/01/70 00:00 | |
| sounds as if | 01/01/70 00:00 | |
| by pass caps | 01/01/70 00:00 | |
| I'd say so | 01/01/70 00:00 | |
| oops 0.5mm will be 0.5cm | 01/01/70 00:00 | |
| Where?? | 01/01/70 00:00 | |
| burst signal | 01/01/70 00:00 | |
| re:burst test | 01/01/70 00:00 | |
Exactly, that's the point! | 01/01/70 00:00 | |
| Some answers | 01/01/70 00:00 |