neazoi
Advanced Member level 6
Hi, I design an HF oscillator (2-30MHz) by mixing a switched crystal oscillator (max 32MHz) with a 4MHz ceramic resonator VXO, into an SA612AN. This oscillator, will be followed by a second SA612AN, operating as a DSB modulator.
I am taking the signal out of pin 4 and I would like to design a LPF for each band in HF following pin 4 of the first chip and feeding pin 6 of the second chip.
But what is the impedance in pin 4 so I can design the input of the filter correctly?
Also, what is the impedance on pin 6 so I can design the output of the filter correctly?
I am taking the signal out of pin 4 and I would like to design a LPF for each band in HF following pin 4 of the first chip and feeding pin 6 of the second chip.
But what is the impedance in pin 4 so I can design the input of the filter correctly?
Also, what is the impedance on pin 6 so I can design the output of the filter correctly?