MAX9598

19-3209; Rev 0; 2/08 KIT ATION EVALU E L B A AVAIL Low-Power Audio/Video Switch for Dual SCART Connectors www.datasheet4u.com General Description Features o 70mW Quiescent Power Consumption o 1.7mW Low-Power Mode Consumption o 0.1mW Shutdown Consumption o Clickless/Popless, DirectDrive Audio o Video Input Detection o Video Load Detection o Video Reconstruction Filter with 10MHz Passband and 52dB Attenuation at 27MHz o 3.3V and 12V Supply Voltages MAX9598 The MAX9598 dual SCART matrix routes 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 MAX9598 consumes 70mW during quiescent operation and 471mW during average operation when driving typical signals into typical loads. Video input detection, video load detection, and a 1.7mW low-power mode facilitate the design of lowpower set-top boxes. The MAX9598 audio section contains a buffered crosspoint to route audio inputs to audio outputs. The DirectDrive™ output amplifiers create a 2V RMS fullscale audio signal biased around ground, eliminating the need for bulky output capacitors and reducing click-and-pop noise. The zero-cross detection circuitry also further reduces clicks and pops by enabling audio sources to switch only during a zero-crossing. The MAX9598 video section contains a buffered crosspoint to route video inputs to video outputs. The standarddefinition video signals from the set-top box decoder chip ...