Specifications

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.