• 为什么ADA4891实际输出波形与仿真不符,且正半周失真

          各位老师、专家你们好,我用LTSpice和ADA4891设计了如下的一个电路。两个放大器都是单+3V供电,图中第二集的VDC是+1.5V直流偏置电压。第一级是一个二阶低通滤波器,截止频率1MHz,第二级是一个反相放大器。这个电路输入信号是电流传感器传出的纯交流电压信号,输出需要严格控制在0~3V以便送入DSP中。

         仿真波形如上图所示,感觉比较完美,于是用ADA4891-2在洞洞板上搭建实物电路测试。实物电路中47uF电容采用0805规格贴片独石电容,电源采用LDO降压供电。然而实测结果如下图所示…

  • 4:4:4 encoding?

    Is there an Analog Devices part that can accept 4:4:4 encoding?

  • ADV7612 4:4:4 YCrCb

    Hi

    datasheet on page 13 states that the ADV7612 supports 36-bit 4:4:4 YCrCb, but the table 5 and 6 do not list this mode. Is it supported, how can it be activated?

    best regards


    Dani

  • RE: Used one OpAmp as Amplifier and another as Comparator in a ADA4891-2ARMZ chip. Can the usage of a OpAmp as a Comparator for this device cause any trouble, wear-out etc.

    FormerMember
    FormerMember

    Comparators, Op Amps, and InAmps are shown as triangles with two inputs and one output;  they are not the same.

    A comparator is decompensated, has a digital output stage, gets faster w/ overdrive, and usually will allow a wide

    differential voltage on…

  • av code section for 4:4:4

    I have a question. What is the content of Section AV for YCbCr 4:4:4 24 bit interface?

  • ADV7612 DDR 4:4:4 Output Modes data

    Page 13 of DS describes the PIXEL INPUT/OUTPUT FORMATTING The output section of the ADV7612 is highly flexible. The pixel output bus can support up to 36-bit 4:4:4 YCrCb or 36-bit 4:4:4 RGB. The pixel data supports both single and double data rates modes1…

  • ADV7619 4k 8bit 4/4/4 pass through

    Hello,

      I wanted to ask for clarification on the VS and HS signals with the ADV7619 in pass through mode.  i read the thread on this previously https://ez.analog.com/message/156902#156902 and it does say that the CP will be bypassed and the syncs remain…

  • ADV7627 RGB 4:4:4 Color Space Issue

    We are using the ADV7627.

    An error occurs when we have a source generating RGB 4:4:4. Output color is incorrect and exhibits lots of pink.  When the source is connected directly to the display everything looks just fine. BTW, auto-CSC doesn't seem to…

  • ADV7511 1080p RGB 4:4:4 script needed

    Could you please provide the IIC configuration script for ADV7511 HDMI

    I am working on the ADV7511 chip, which is the HDMI codec in VC707 EVB from

    FPGA company Xilinx.

    I want to configured the ADV7511 working in 1080P, 4:4:4 RGB input (each

    component…

  • ADV7625 RGB 4:4:4 Color Space Issue

    I started this question with my original post: ADV7627 RGB 4:4:4 Color Space Issue 

    Colorspace continues to plague my system and I am looking for some guidance. I have spent a considerable amount of time looking at the AVIAPI routines but there are some…