Video Amp with Sync Stripper & DC Restore

Posted on Mar 3, 2013

The circuit in Figure 1 transmits 200MHz (-3dB bandwidth) video signals while stripping off the sync pulse and performing DC restoration. It is configured for a typical video cable driver application driving a double-terminated 75 load, where the EL8102 (IC3) is configured for a gain of +2 to ensure unity gain throughout.

In component video systems it is frequently necessary to remove the sync pulse from an RGB signal. Sync is often combined with one or more of the red, green, and blue video signals in video distribution amplifiers, routers and switchers to decrease the nu

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