| ??? 05/20/05 12:56 Read: times |
#93639 - Built-in Pierce oscillators ARE reliable Responding to: ???'s previous message |
Jan said:
Don't rely on the datasheet, try to replace it (temporarily) by a proven good oscillator (preferrably integrated one and of a properly rated temperature range). These built-in Pierce oscillators ARE prooven and good. They are designed to work very reliable, when, yes when using the burden caps recommended in datasheet. Problems never occured to me with these built-in oscillators. But keep your hands off cheap crystals! They are a mess as they can show abnorme dampings (too high equivalent series resistances). Problems can also occur, when using an overtone quartz or when just using a too high frequency for the micro. So, use proper parts and use those recommended in datasheet, then you won't have any problems... Kai |
| Topic | Author | Date |
| Temperature and 89C2051 | 01/01/70 00:00 | |
| Chip Grade? | 01/01/70 00:00 | |
| A bit vague | 01/01/70 00:00 | |
| oscillator? | 01/01/70 00:00 | |
| Built-in Pierce oscillators ARE reliable | 01/01/70 00:00 | |
| Freeze spray | 01/01/70 00:00 | |
| Overheated parts, too hot soldering? | 01/01/70 00:00 | |
| I have my doubts | 01/01/70 00:00 | |
| What about this? | 01/01/70 00:00 | |
| has happened | 01/01/70 00:00 | |
| Re: has happened | 01/01/70 00:00 | |
| Microwave oven | 01/01/70 00:00 | |
| not microwave, but toaster oven | 01/01/70 00:00 | |
| Thanks for replies | 01/01/70 00:00 | |
| How about this | 01/01/70 00:00 | |
| Wait a minute... | 01/01/70 00:00 | |
| Improvements | 01/01/70 00:00 | |
| resist | 01/01/70 00:00 | |
| Quartzes, etch resist | 01/01/70 00:00 | |
| Quartz Crystals | 01/01/70 00:00 | |
| Quartz crystals | 01/01/70 00:00 | |
no problem | 01/01/70 00:00 | |
| Maybe! | 01/01/70 00:00 | |
| Maybe! | 01/01/70 00:00 | |
| LED temperature rating? | 01/01/70 00:00 |