hosein_rabiee_g
Member level 2
Hi.
if u are sure from VCO and other devices power supply noise, you should measure the vco input current at Vt pin.
although in datasheet no vco sink current from this pin, i see that that is wrong for some devices.
in this condition, using active filter with suitable opamp can reduce the spurs at comparison freq.
if u are sure from VCO and other devices power supply noise, you should measure the vco input current at Vt pin.
although in datasheet no vco sink current from this pin, i see that that is wrong for some devices.
in this condition, using active filter with suitable opamp can reduce the spurs at comparison freq.