AnsweredAssumed Answered

ADV7619 4K*2K 30p mode video puzzle

Question asked by smckg511 on Sep 7, 2015
Latest reply on Sep 9, 2015 by DominicB

Dear Sir,

     My company use ADV7619 as HDMI receiver and make it work in 4k*2k mode, 2 x 16-bit SDR 4:2:2 interleaved mode. There is a problem that we find when pixel frequency higher than 148.5MHz or larger, the signal coming from LLC output pin become smaller and unstable. The phenomenon is that it is ok if we set input as 4K*2K 25P mode but the video would tremble little if we set input as 4K*2k 30p .

     The configuration is designed according to recommendation as follow:

{adv7619_HDMI_MAP2,0XC0,0X03},//HDMI
{adv7619_IO_MAP2,0X01,0X06},//PRIM_MODE                   
{adv7619_IO_MAP2,0X02,0XF0},//FORMAT

  {adv7619_IO_MAP2,0X03,0X94},                    

  {adv7619_IO_MAP2,0X05,0X28},//AV CODES OFF
  {adv7619_IO_MAP2,0X06,0XA1},//NO INVERSION ON VS, HS PINS
  {adv7619_IO_MAP2,0X0C,0X42},//POWER UP PART
  {adv7619_IO_MAP2,0X15,0X80},//DISABLE TRISTATE OF PINS
  {adv7619_IO_MAP2,0X19,0X80},//LLC DLL PHASE
  {adv7619_IO_MAP2,0X33,0X40},//LLC DLL MUX ENABLE
  {adv7619_IO_MAP2,0XDD,0XA0},//LLC HALF FREQUENCY
  {adv7619_DPLL_MAP2,0XB5,0X01},//SETTING MCLK TO 256FS
  {adv7619_DPLL_MAP2,0XC3,0X80},//ADI REQUIRED WRITE
  {adv7619_DPLL_MAP2,0XCF,0X03},//ADI REQUIRED WRITE                           

  {adv7619_HDMI_MAP2,0XC0,0X03},                           

  {adv7619_HDMI_MAP2,0X00,0X08},   //set hdmi input port a                          

  {adv7619_HDMI_MAP2,0X02,0X03},

  {adv7619_HDMI_MAP2,0X03,0X98},

  {adv7619_HDMI_MAP2,0X10,0XA5},

  {adv7619_HDMI_MAP2,0X1B,0X00},

  {adv7619_HDMI_MAP2,0X45,0X04},

  {adv7619_HDMI_MAP2,0X97,0XC0},

  {adv7619_HDMI_MAP2,0X3E,0X69},

  {adv7619_HDMI_MAP2,0X3F,0X46},

  {adv7619_HDMI_MAP2,0X4E,0XFE},

  {adv7619_HDMI_MAP2,0X4F,0X08},                          

  {adv7619_HDMI_MAP2,0X50,0X00},

  {adv7619_HDMI_MAP2,0X57,0XA3},

  {adv7619_HDMI_MAP2,0X58,0X07},

  {adv7619_HDMI_MAP2,0X6F,0X08},

  {adv7619_HDMI_MAP2,0X83,0XFC},

  {adv7619_HDMI_MAP2,0X84,0X03},

  {adv7619_HDMI_MAP2,0X85,0X10},

  {adv7619_HDMI_MAP2,0X86,0X9B},

  {adv7619_HDMI_MAP2,0X89,0X03},

  {adv7619_HDMI_MAP2,0X9B,0X03},

  {adv7619_HDMI_MAP2,0X93,0X03},

  {adv7619_HDMI_MAP2,0X5A,0X80},

  {adv7619_HDMI_MAP2,0X9C,0X80},

  {adv7619_HDMI_MAP2,0X9C,0XC0},

  {adv7619_HDMI_MAP2,0X9C,0X00}

Outcomes