MAX11503

The MAX11503 operates from a single 2.7V to 5.25V supply, is specified over the extended -40°C to +85°C temperature range, and is available in a small 8-pin MAXpackage. The MAX11503 drives two terminated 75 video coax cables. It features include chroma mute, power save, and SAG correction. Chroma mute disables the chroma buffer. If the device is used to combine Y and C signals in a camera application, the chroma mute may be used in low-light situations. This removes all chroma including burst which causes a downstream composite video decoder to interpret the video signal as luminance only, thus improving image quality. SAG correction allows small output capacitors to be used in AC-coupled output applications. The MAX11503 is a low-power video amplifier with a Y/C summer and chroma mute. The device accepts an S-video or Y/C input and sums the luma (Y)and chroma (C)signals into a composite CVBS signal which can be connected directly to a TV monitor.

The features of MAX11503 can be summarized as (1)low operating voltage; (2)internal Y/C summer with chroma mute capability; (3)AC- or DC-coupled inputs; (4)AC- or DC-coupled outputs; (5)output buffer drives two terminated 75 video coax cables; (6)SAG correction allows for small output capacitors; (7)low-power standby, 0.5A at 3.0V.

The absolute maximum ratings of MAX11503 are (1)any pin to GND: -0.3V to +5.5V; (2)maximum current into any pin except VCC and GND: ±-50mA; (3)continuous power dissipation (TA = +70°C)8-Pin MAX-EP single-layer board (derate 10.3mW/°C above +70°C): 824mW; (4)multilayer board (derate 12.9 mW/°C above +70°C): 1030mW; (5)operating temperature range: -40°C to +85°C; (6)storage temperature range: -65°C to +150°C; (7)lead temperature (soldering, 10s): +300°C; (8)junction temperature: +150°C; (9)ESD protection (human body model): ±2kV.