Features: • Pin Compatible, Cable Driving Upgrade for HA456 and MAX456• Fully Buffered Inputs and Outputs (AV = +2)• Routes Any Input Channel to Any Output Channel• Switches Standard and High Resolution Video Signals• Serial or Parallel Digital Interface• Expand...
HA457: Features: • Pin Compatible, Cable Driving Upgrade for HA456 and MAX456• Fully Buffered Inputs and Outputs (AV = +2)• Routes Any Input Channel to Any Output Channel• Switches ...
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The HA457 is an 8 x 8 video crosspoint switch suitable for high performance video systems. Its high level of integration significantly reduces component count, board space, and cost. The crosspoint switch contains a digitally controlled matrix of 64 fully buffered switches that connect eight video input signals to any, or all, matrix outputs. Each matrix output connects to an internal, high-speed (275V/s), gain of two buffer capable of driving 150 to ±2.5V.
The HA457 will directly drive a double terminated video cable with some degradation of differential gain and phase.Applications demanding the best composite video performance should drive the cable with a unity gain video buffer, such as the HFA1412 quad buffer (see Figure 7).
This crosspoint's three-state output capability makes it feasible to parallel multiple HA457s and form larger switch matrices.