Hello,
Thank you for your reply.
I checked other datasheet about this.
Datasheet of AK8813 says that closed caption data is inserted to line 22 and line 335 in PAL.
(I don't know whether it means teletext or not.)
http://www.akm.com/akm/en/file/datasheet/AK8813VQ.pdf
(Please see page 19.)
Datasheet of ADV7390 doesn't say about this.
I think it says only line 21 and line 284 in NTSC.
So I think when ADV7390 outputs PAL, Closed Caption is invalid.
This is NOT request that we want ADV7390 to support closed caption in PAL.
If ADV7390 does not support this, it'll be OK. (I'll tell it to the customer.)
We want to know only whether ADV7390 supports closed caption in PAL or not.
When you get the answer, please let me know.
Thank you.
Best regards.