GS4911B

GS4911B/GS4910B HD/SD/Graphics Clock and Timing Generator with GENLOCK Key Features Video Clock Synthesis Generates any video or graphics clock up to 165MHz Pre-programmed for 8 video and 13 graphics clocks Accuracy of free-running clock frequency limited only by crystal reference One differential and two single-ended video/graphics clock outputs Each clock may be individually delayed for skew control Video output clock may be directly connected to Gennum’s serializers for a SMPTE-compliant HD-SDI output Audio Clock Synthesis (GS4911B only) Three audio clock outputs Generates any audio clock up to 512*96kHz Pre-programmed for 7 audio clocks Timing Generation Generates up to 8 timing signals at a time Choose from 9 pre-programmed timing signals: H and V sync and blanking, F Sync, F Digital, AFS (GS4911B only), Display Enable, 10FID, and up to 4 user-defined timing signals Pre-programmed to generate timing for 35 different video formats and 13 different graphic display formats Genlock Capability Clocks may be free-running or genlocked to an input reference with a variable offset step size of 100-200ps (depending on exact clock frequency) Variable timing offset step size of 100-200ps up to one frame Output may be cross-locked to a different input reference Freeze operation on loss of reference Optional crash or drift lock on application of reference Automatic input format detection General Features Reduces design complexity and saves board ...