MAX2606EUT part 2
So if you haven't followed the earlier blog there is an early attempt at breadboarding this device and its woes. As we are dealing with RF there are some very special considerations and some which will not be immediately apparent. I am basically developing a Transmitter and a receiver in tandem and mixing this with digital. Some of the important aspects to understand with the MAX2606. the choice of inductor is critical with a high Q. I have used both open and shielded inductors to tune. The later is very important. Adjustable core is essential. Input signal to the MAX2606 is around 500mV. Exceeding the 700mV saturates the mixer and loses signal. Be warned! This device is a voltage controlled oscillator, used as an FM transmitter. There are some aspects of FM transmission that need understanding to be of use. So lets look at the situation so far. 1) I have had to change the coil type. 2) The receiver antenna matching has been improved. 3) The PCB layout has remov...
