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19-4653; Rev 0; 7/09
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Low-Power Audio/Video Switch with Audio Volume Control for Dual SCART Connectors
General Description
The MAX9670/MAX9671 dual SCART matrices route audio and video signals between a set-top box decoder chip and two external SCART connectors under I2C control. Operating from a 3.3V supply and a 12V supply, the MAX9670/MAX9671 consume 70mW during quiescent operation and 471mW during average operation when driving typical signals into typical loads. Video input detection, video load detection, and a 2.5mW standby mode facilitate the design of intelligent, low-power set-top boxes.