| ??? 02/01/09 03:50 Modified: 02/01/09 04:00 Read: times |
#161888 - Yes, but Responding to: ???'s previous message |
Jerson Fernandes said:
Fout = (Fin * 3391)/981
Your multiplier method may be inaccurate for the OP requirements. Hence - this is why I asked for clarification of the requirements before offering suggestions. The OP said - It possible using MCU or Some other technique like VLSI? But the OP hasn't advised the waveform of the signal.... If the waveform is a sinewave - some form of ADC-DAC is required to use a MCU (ie convert from analog to digital, do the digital maths to multiply and then convert back to analog). Another possibility is to use a DDS peripheral onboad a MCU... Analog Devices have some 80c51's and ARM7's MCU with DDS onboard (direct digital Synth). But there many other possibilities until the requirements are narrowed down. Joe |
| Topic | Author | Date |
| Frequency Multiplication | 01/01/70 00:00 | |
| what is the wave form shape of the original signal? | 01/01/70 00:00 | |
| Yes, PLL is the most promising solution | 01/01/70 00:00 | |
| Easy integer approximation | 01/01/70 00:00 | |
| Yes, but | 01/01/70 00:00 | |
| Wave Shape | 01/01/70 00:00 | |
| Constant speed? | 01/01/70 00:00 | |
| Constant speed? | 01/01/70 00:00 | |
| Constant speed? | 01/01/70 00:00 | |
| Constant speed? | 01/01/70 00:00 | |
| Still some outstanding questions | 01/01/70 00:00 | |
| Perhaps you're looking at the wrong motor | 01/01/70 00:00 | |
| Rate Multiplier | 01/01/70 00:00 | |
| That might work ... but ... | 01/01/70 00:00 | |
| Frequency multiplier | 01/01/70 00:00 | |
| How about some numbers? | 01/01/70 00:00 | |
| Frequency Multiplier | 01/01/70 00:00 | |
| I was afraid that was the case ... | 01/01/70 00:00 | |
| Frequency Multipllication | 01/01/70 00:00 | |
| What about that logic card? | 01/01/70 00:00 | |
| Frequency Multipiler | 01/01/70 00:00 | |
| Why no further relevant information? | 01/01/70 00:00 | |
I have been following this | 01/01/70 00:00 |