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Ref# 420826 Intel

Atom™ processor CE4100 73

Platform Design Guide

Intel Confidential

6.1.2 Video Calibration Circuit

The Intel® Atom™ processor CE4100 includes an integrated Video Calibration function.

Calibration is done to counteract the process related mismatches in the VDAC circuits so

that the full scale voltage can meet the +/- 5% tolerance.

The video calibration function asks for different termination on the platform. When the

calibration function is enabled, the termination is 1.1K Ω for VDAC_OUT A/B/C; When the

calibration function is disabled, the termination is 0 Ω for VDAC_OUT A/B/C.

Figure 6-6. Design Example One

Figure 6-7. Design Example Two

Note: The customer might prefer to disable the video calibration based on design factors.

With the calibration circuit disabled, the video quality will be affected. Intel is working on a

validation process with the calibration circuit disabled.

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Samsung RT55EANS Specifiche Pagina 73