| ??? 01/06/06 23:38 Modified: 01/06/06 23:45 Read: times |
#106741 - PLL Responding to: ???'s previous message |
I think PLL is worth a shot, the only problem with PLL how can you generate 0 Hz?
With a microcontroller I can pull the pin low or Hi for 0 Hz! With PLL I have to worry about temp stability and loop filter drift, aging etc... I also would like to protect my circuit against theft. My first attempt should be with a microcontroler using timer interrupts, do you think it is possible. I need the error to be as small as possible, prefferably 0% Cost is no problem. Mahmood |
| Topic | Author | Date |
| frequency generation | 01/01/70 00:00 | |
| Use an NCO | 01/01/70 00:00 | |
| Microcontroller emulates NCOs | 01/01/70 00:00 | |
| Nice but... | 01/01/70 00:00 | |
| we can think of something | 01/01/70 00:00 | |
| nothing special | 01/01/70 00:00 | |
| how about a PLL (Phase Locked Loop) | 01/01/70 00:00 | |
| PLL | 01/01/70 00:00 | |
| 0 ? | 01/01/70 00:00 | |
| Part no? | 01/01/70 00:00 | |
| Clock speed | 01/01/70 00:00 | |
| 0 Hz Frequency | 01/01/70 00:00 | |
| Differenece between... | 01/01/70 00:00 | |
| If Max is 1 kHz, ... | 01/01/70 00:00 | |
| more details | 01/01/70 00:00 | |
| Difficult ! | 01/01/70 00:00 | |
| 8253? | 01/01/70 00:00 | |
| Mode 3 | 01/01/70 00:00 | |
| mode 3 again | 01/01/70 00:00 | |
| Example | 01/01/70 00:00 | |
| 1MHz / 1001 | 01/01/70 00:00 | |
| Concretely... | 01/01/70 00:00 | |
| Overview of functions | 01/01/70 00:00 | |
| What do you think? | 01/01/70 00:00 | |
| why not '52? | 01/01/70 00:00 | |
| is it possible? | 01/01/70 00:00 | |
| its an option | 01/01/70 00:00 | |
please i need to square wave osscillator | 01/01/70 00:00 |