Sybren

ADV7123 and ADV7125 sync levels

Discussion created by Sybren Employee on Jun 22, 2010

The ADV7123 and ADV7125 are high-speed video DACs (10 bit and 8 bit respectively).  A recent customer query has highlighted the fact that the diagrams in the datasheets (figures 3 and 5 respectively) imply that the sync portion of the output video signal is 43 IRE.  The customer measured 40 IRE.  Measurements in our lab on a DC setup support the customer findings.  Results are attached.  The datasheet will be updated in due course.

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