I tried to message Drakon about this, but no response yet.
Tiido and Drakon came up with a way to divide the 21.47 MHz clock to 3.58MHz for use as the SC input on the cxa2075m encoder, but I can't get it to function properly.
So I got a 3.58 MHz oscillator and got it working, but the point of the divider is to reduce jailbars in the svideo/composite output. Although I didn't actually see any on my pvm, but maybe they will show up more on the lcd tv?
I also put the 2.2kOhm and 47pF component in the signal path as per the cxa datasheet to help with high-freq interference, but it didn't help, nor did it seem to anything with the oscillator.
There's a similar set for the sync signal, but it also seems to do nothing.
I don't have a DSO to tell me that the signal in the diver circuit is at the correct cycles, but my analog scope shows a similar waveform as the oscillator.
Here is the circuit Drakon posted, but quickly removed from some thread he posted it in, not sure how I found it, not sure why he removed it... well maybe a little sure...
Tiido and Drakon came up with a way to divide the 21.47 MHz clock to 3.58MHz for use as the SC input on the cxa2075m encoder, but I can't get it to function properly.
So I got a 3.58 MHz oscillator and got it working, but the point of the divider is to reduce jailbars in the svideo/composite output. Although I didn't actually see any on my pvm, but maybe they will show up more on the lcd tv?
I also put the 2.2kOhm and 47pF component in the signal path as per the cxa datasheet to help with high-freq interference, but it didn't help, nor did it seem to anything with the oscillator.
There's a similar set for the sync signal, but it also seems to do nothing.
I don't have a DSO to tell me that the signal in the diver circuit is at the correct cycles, but my analog scope shows a similar waveform as the oscillator.
Here is the circuit Drakon posted, but quickly removed from some thread he posted it in, not sure how I found it, not sure why he removed it... well maybe a little sure...