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ADV7280 I2P YCBCR out  ,image jitter!

Question asked by Frank_w on Jan 18, 2017
Latest reply on Jan 23, 2017 by Rob.Analog

hi !

   The scripts I use as follow:

:I2P - PAL In Ain2, YPrPb Out (576p EAV/SAV):
delay 10 ;
42 0F 00 ; Exit Power Down Mode [ADV7280 writes begin]
42 00 01 ; CVBS in on AIN2
42 0E 80 ; ADI Required Write
42 9C 00 ; ADI Required Write
42 9C FF ; ADI Required Write
42 0E 00 ; Enter User Sub Map
42 03 0C ; Enable Pixel & Sync output drivers
42 04 07 ; Power-up INTRQ pad, Enable SFL & VS pin
42 13 00 ; Enable INTRQ output driver
42 17 41 ; Enable SH1
42 1D 40 ; Enable LLC output driver
42 52 CD ; ADI Required Write
42 80 51 ; ADI Required Write
42 81 51 ; ADI Required Write
42 82 68 ; ADI Required Write
42 FD 84 ; Set VPP Map
84 A3 00 ; ADI Required Write [ADV7280 VPP writes begin]
84 5B 00 ; Enable Advanced Timing Mode
84 55 80 ; Enable the Deinterlacer for I2P [All ADV7280 writes finished]
56 17 02 ; Software Reset [Encoder Writes Begin]
56 00 9C ; Power up DAC's and PLL
56 01 70 ; ED at 54MHz input
56 30 1C ; 625p at 50 Hz with Embedded Timing
56 31 01 ; Pixel Data Valid [Encoder Writes finished]
End

 

AS the attachment(.mp4 file) ,  the issue is obviously.  

 

I had do some works ,after I  browsed  the  post  adv7280 CVBS(NTSC) I2P, how suppress the image jitter ? 
   

 i  changed the value i can change  in registers  0x17 and some value in 0x18,0x19   ,but it didn`t  improve.      

 i have upload the sch file,and the pcb layout as follow:

 

    what i can do   to  solve this issue````

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