I am going to design a FM transmitter which can transmit an audio signal in a desired frequency with 100 kHz steps (but within 88MHz-108MHz range) using digital phase lock loop for my final year project. Here I have some questions to resolve.
1. How to choose the best DPLL IC for the modulation part.
I have found some ICs such as 74HCT9046, 74HC4046. But I don't know which one will suit for my purpose. I need to have a 100% accurate output frequency in the transmission.
2. Will the output of the DPLL produce harmonics to filter the required frequency range (88MHz - 108 MHz), if the DPLL output is not in the required frequency range?
3. What are the other facts I should concentrate when I doing this project?
Your replies/suggestions will helpful to me.
Thanks in advance
1. How to choose the best DPLL IC for the modulation part.
I have found some ICs such as 74HCT9046, 74HC4046. But I don't know which one will suit for my purpose. I need to have a 100% accurate output frequency in the transmission.
2. Will the output of the DPLL produce harmonics to filter the required frequency range (88MHz - 108 MHz), if the DPLL output is not in the required frequency range?
3. What are the other facts I should concentrate when I doing this project?
Your replies/suggestions will helpful to me.
Thanks in advance