Preparing Next Generation Procyon

New solid state VCO (Voltage Controlled Oscillator) design will replace a fully discrete VCO (on the left card) in order to improve the DFM (design for manufacturability). VCO is a heart of the HDMI genlocked PLL module, which performance is essential to the stability and quality of digital image.


However, still quite a low of work is required on the VCO itself, due to the very high level of phase noise.

This is how it supposes to be:


Here is a very high solid state VCO noise:


So more work to be done on the new solid state VCO soon…