TIDUF06 August 2022
To achieve a quality output video stream, the output voltage ripple on the IMX623 and DS90UB953-Q1 supplies must be low so that it does not affect the integrity of the high-speed CSI-2 data and internal PLL clocks. Figure 3-5 to Figure 3-8 show the measurements for 3.8-V, 1.8-V, 1.1-V, and 3.3-V rails while the camera is streaming video. The measured peak-to-peak ripple voltages are 0.4%, 0.6%, 0.6%, and 0.1% respectively. The tight voltage accuracy allows for the video output to be successfully transmitted.