The MAX7481/MAX7482 from Maxim Integrated Products are bidirectional video filters/buffers. These devices provide reconstruction filters and line drive buffers for both composite video (CVBS) and S-video (Y/C) signals in playback mode and anti-aliasing filters in record mode for consumer devices. The MAX7481/MAX7482 offer many unique features that enable portable consumer applications to share connectors in record and playback modes.

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The MAX7481/MAX7482 feature DirectDrive technology, which ensures low-power operation in a single-supply system. DirectDrive uses an internal negative charge pump and a regulator to maintain the output-blanking level at ground so that the output to the display can be dc-coupled.

The MAX7481/MAX7482 are suitable for portable video applications that require low-voltage, low-power operation and analog video inputs and outputs. Included are a composite and S-video record and video-playback interface for portable devices. Inputs and outputs that share one connection to external video devices save space in portable media applications. They also offer advanced power-down modes for extended battery life and +6 dB (MAX7481) or +7 dB (MAX7482) gain

The MAX7481/MAX7482 operate from a single +2.7 V to +3.6 V power supply over the extended commercial-temperature range. These devices are offered in a 5 mm x 5 mm, 28-pin TQFN package. Prices start at $1.35 for 1000-piece orders.