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ADV7393 YPbPr PAL Color Bar Out to ADV7403 4:4:4 24 Bit Output

Question asked by JeffStearns on Feb 1, 2016
Latest reply on Feb 2, 2016 by JeffStearns

We are developing a test program for our customer on an ATE Test Station to test an ADV7393 analog YPbPr output feeding a ADV7403 which outputs 4:4:4 24 bits through to a Xilinx FPGA which we control to capture the data in a buffer which will then be tested.  The schematic page for the ADV7403 is attached.  We have had success testing the AIN4 composite PAL color bar in to the ADV7403 from the ADV7393 to 16 Bit output with the following scripts:

 

##COMPOSITE PAL COLOR BAR ADV7393 to ADV7403 AIN4##

 

#ADV7393 Script#

54 00 1C ; POWER_MODE register , Power On DAC 1, 2, and 3, PLL Enable, Sleep Mode Off

54 80 11 ; VIDEO_STANDARD register, Active Video Edge Control, SD Pixel Data Valid

54 82 CB ; SD_MODE_2 register, Composite, Active Video Edge Control, SD Pixel Data Valid

54 84 40 ; SD_MODE_4 register, SD Color Bars Enabled

54 8c cb ; SD_FSC_0 register, Table 37, PAL Typical FSC Values

54 8d 8a ; SD_FSC_1 register, PAL Typical FSC Values

54 8e 09 ; SD_FSC_2 register, PAL Typical FSC Values

54 8f 2a ; SD_FSC_3 register, PAL Typical FSC Values

 

#ADV7403 Script#

:AUTODETECT CVBS IN NTSC/PAL/SECAM, 16-Bit YPbPr 422 out through encoder :

42 00 03 ; CVBS Ain4, without pedestal, auto detect PAL

42 03 08 ; 16 Bit Mode

42 17 41 ; select SH1

42 1D 47 ; Enable 28MHz Crystal

42 3A 17 ; Set Latch Clock & power down ADC 1 & ADC2 & ADC3

42 3B 80 ; Enable External Bias

42 2B E1 ; Color Kill Enable

42 31 02 ; Clears NEWAV_MODE, SAV/EAV  to suit ADV video encoders

42 3D A2 ; MWE Enable Manual Window, Colour Kill Threshold to 2

42 3E 6A ; BLM optimisation

42 3F A0 ; BGB

42 86 0B ; Enable stdi_line_count_mode

42 F3 01 ; Enable Anti Alias Filter on ADC0

42 F9 03 ; Set max v lock range

42 0E 80 ; ADI Recommended Setting

42 52 46 ; ADI Recommended Setting

42 54 00 ; ADI Recommended Setting

42 7F FF ; ADI Recommended Setting

42 81 30 ; ADI Recommended Setting

42 90 C9 ; ADI Recommended Setting

42 91 40 ; ADI Recommended Setting

42 92 3C ; ADI Recommended Setting

42 93 CA ; ADI Recommended Setting

42 94 D5 ; ADI Recommended Setting

42 B1 FF ; ADI Recommended Setting

42 B6 08 ; ADI Recommended Setting

42 C0 9A ; ADI Recommended Setting

42 CF 50 ; ADI Recommended Setting

42 D0 4E ; ADI Recommended Setting

42 D1 B9 ; ADI Recommended Setting

42 D6 DD ; ADI Recommended Setting

42 D7 E2 ; ADI Recommended Setting

42 E5 51 ; ADI Recommended Setting

42 0E 00 ; ADI Recommended Setting

 

We are having trouble when we set the ADV7393 for YPbPr PAL Color Bar outputs to the ADV7403 set up for YPbPr inputs and 24 bit output setup.  Could you give us recommendations for modifying the scripts above to accomplish the YPbPr ADV7393 Color Bar outputs and 24 bit output from the ADV7403?

 

Any help would be greatly appreciated.

 

Thanks,

 

Jeff Stearns

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