MAX7472

www.DataSheet4U.com 19-0619; Rev 0; 8/06 KIT ATION EVALU LE B A IL A AV HDTV Anti-Aliasing Filters with Triple-Input Mux General Description The MAX7472/MAX7473 triple-channel anti-aliasing filters and buffers with triple-input mux are ideal for highdefinition (HD) and standard-definition (SD) television (TV) applications. Compatible with 1080i, 720p, 480p, and 480i scanning system standards as well as computer format signals, the MAX7472/MAX7473 support component video (Y PB PR, GsBR, and RGBHV) as well as composite (CVBS) and S-video (Y/C). The MAX7472/MAX7473 limit the input bandwidth for anti-aliasing and out-of-band noise reduction prior to digital conversion by an ADC or video decoder. The frequency response of the MAX7472/MAX7473 can be continuously varied in 256 linear steps from below SD response to beyond HD response through an I2C† interface. The adjustable cutoff frequency allows filter optimization for sampling rate and noise reduction. The MAX7472/MAX7473 also include 3:1 multiplexers for selection of three complete sets of video inputs through the I2C interface. The MAX7472/MAX7473 drive a 2VP-P video signal into a standard 150Ω load. The inputs are AC-coupled and the outputs can be either DC- or AC-coupled. The MAX7472 has a gain of 0dB and the MAX7473 has a gain of +6dB. Both devices are available in a 28-pin TQFN package and are fully specified over the uppercommercial (0°C to +85°C) temperature range. Features o Continuously Variable Anti-Aliasing Filte...