Reply To: Pinout for OSSC AV3 Dsub 15 / VGA input?

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#20304
nmalinoski
Participant

So, OSSC will tolerate/accept TTL sync, composite sync, and sync on composite video all through the same pin (VGA horizontal sync)?

No, not quite. AV1 can accept composite sync, luma, or composite video as sync, but must be 75Ohm-terminated–sending AV1 TTL sync will likely blow something.

AV3 requires TTL CSync or HV sync–it will not accept composite or luma, nor 75Ohm-terminated signaling.