Other Parts Discussed in Thread: LMX2492
I want to lock my YIG-Oscillator (4-8GHz) with your PLL chip LMX2492 with best performance in Phase Noise.Therefore I need an active PLL-Filter.
My YIG-Oscillator will be driven with the primary coil over an Voltage/Current converter near to the suggestet frequency (±15MHz).
The secundary coil should be driven over the active PLL-Filter to lock the Yig-Oscillator at the exact frequency.
Can you help me to calculate the active PLL-Filter ?
Yig-Oscillator: 4-8GHz
Phase Noise (20kHz offset): -105dBc/Hz
Secundary coil sensitive: 1,6MHz/V
Reference Oscillator: 190,4-200MHz
Phase Noise (20kHz offset): -130dBc/Hz
R-Divider: 1
PLL-N therefore is from 21 to 40
Is it better to take 2 Op parallel (LME49710 /OPA227U) for better performance ?
