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TVP5150AM1: TVP5150: Jitter on all Sync and Interrupt lines

Part Number: TVP5150AM1
Other Parts Discussed in Thread: TVP5150

Hi,

i built my own PCB with the TVP5150 to run this with an STM32F407. The comunication over I2C is ok and i can write/read all registers. I configuered a default setup for the TVP5150 and execute this on a EvalBoard of the TVP5150 successfully. On the EvalBoard i don't have a jitter on the HSYNC, VSYNC and INT lines. Also the StatusRegister1 returns 0x6e.

EvalBoard is one of this: https://ae01.alicdn.com/kf/HTB1xsxacy6guuRkSnb4q6zu4XXaL/TVP5150-Module-FPGA-SDRAM-PAL-Video-Decoding-Analog-AV-Input-Camera-VGA-Display-L67.jpg 

My own built PCB has a jitter after activating the lines with miscellaneous register. You can see the lines HSYNC, VSYNC and input line in the images down below. The result of the StatusRegister1 is 0x61. How can it be and how can i fix it? The input signal between EvalBoard and my own PCB is the same.

Thanks for your help

Paul

  • Hello Paul,

    Unfortunately as stated on our product folder, we do not offer any design support for this device. You may want to try searching for prior threads.

    No design support from TI available

    This product does not have ongoing design support from TI for new projects, such as new content or software updates. If available, you will find relevant collateral, software and tools in the product folder. You can also search for archived information in the TI E2ETM support forums.

    Best Regards,

    Ralph Jacobi