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DS90UB913Q-Q1: DS90UB913Q-Q1

Part Number: DS90UB913Q-Q1

Hello

I am using a PCLK from my camera module to DS90UB913Q, On camera module the pclk is good but at the output Deserializer is noisy when the camera module is darken.

When I light the Image sensor the pclk is ok at the Deserializer  (Left picture)


I am using a DP cable (2m) between DS90UB913QSQ and DS90UB914QSQ .

below is a pictures:

Left: pclk 87MHz (Yellow) vs VSYNC(Green) when Image sensor is lighting

Center: good pclk 

Right: pclk (Yellow) vs VSYNC(Green) when Image sensor is darken , lock is blinking and pclk is 

Can you help me to understand the phenomenon

   
  • Hello Roi,

    Are all three captures at the DES output? Do you have a comparison captures showing the same (i.e. at dark and at light) at the output of the image sensor?

    Can you measure the power supply pins of the SER and image sensor to see if there are any differences between dark and light?

    Can you clarify, what cable is this? DP cable?

    Just to confirm, is LOCK not stable while dark?