The MAX9503 filters and amplifies standard-definitionvideo signals. Maxim’s DirectDrive™ technology eliminateslarge output-coupling capacitors and sets thevideo black level to ground. The input of the MAX9503can be directly connected to the output of a videodigital-to-analog converter (DAC). The MAX9503 providesa compact, integrated, and low-power solution.An internal reconstruction filter smoothes the steps andreduces the spikes on the video signal from the DAC.The reconstruction filter typically has 3dB attenuation at9MHz and 50dB attenuation at 27MHz, and ±1dB passbandflatness to 5.5MHz.Maxim’s DirectDrive uses an integrated charge pumpand a linear regulator to create a clean negative powersupply to drive the sync below ground. The chargepump injects so little noise into the video output that thepicture is visibly flawless.The MAX9503 is available with +6dB (MAX9503G) and+12dB (MAX9503M) gains. The device operates from a2.7V to 3.6V single supply and features a 10nA lowpowershutdown mode.The MAX9503 is offered in space-saving 16-pin QSOPand 16-pin TQFN packages and is specified over the-40°C to +85°C extended temperature range.ApplicationsDigital Still CamerasMobile Phones/SmartphonesSecurity CamerasPortable Media PlayersSpace-Constrained, Low-Power PortableDevices
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