Low-Cost, 3-Channel, HD/PS/SD/BP Video Filters With Buffer

The MAX11508 MAX11509 integrated 3-channel Video Filters for high-definition (HD), progressive-scan (PS), standard-definition (SD), and bypass (BP) Video include an output Buffer with +6dB gain and are ideal for digital Video disc (DVD) players, set-top box (STB) receivers, high-definition Television (HDTV), digital Video recorders (DVRs), and similar devices. The MAX11508 MAX11509 Video inputs feature a trans- parent clamp compatible with AC- and DC-coupled input signals and allow DAC outputs to be directly cou- pled, eliminating the need for bulky coupling capaci- tors. The Filter bandwidths are selectable to HD, PS, and SD. A BP mode is provided for 1080p and high- bandwidth RGB signals. Selectable input bias circuitry on 2 Filter channels offers simple connection to bipolar Video signals such as C, Pb, and Pr. By Maxim Integrated Products