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General Description

The MAX7469/MAX7470 triple-channel, anti-aliasing filters and buffers are ideal for high-definition (HD) and standard-definition (SD) television (TV) applications. Compatible with 1080i, 720p, 480p, and 480i scanning system standards and computer format signals, the MAX7469/MAX7470 support component video (Y Pb Pr, GsBR, and RGBHV), as well as composite (CVBS) and S-video (Y/C).

The MAX7469/MAX7470 limit the input bandwidth for anti-aliasing and out-of-band noise reduction prior to digital conversion by an ADC or video decoder. The MAX7469/MAX7470 frequency response can be continuously varied in 256 linear steps through an I2C interface from below SD resolution to beyond HD resolution.

Features

? Continuously Variable Anti-Aliasing Filter

?? 5MHz to 34MHz in 256 Steps

? Supports All Standard Video and Computer Input

?? Formats

?? 480i, 480p, 720p, 1080i

?? QVGA, VGA, SVGA, XGA, SXGA, UXGA

?? Y Pb Pr, GsBR, RGBHV, Y/C, CVBS

? Accepts Any Input Sync Format

?? Sync on Y, Sync on G, External Sync (Positive

?? or Negative)

?? Sync on All Channels

? Buffered Outputs Drive Standard 150¦¸ Video

?? Load

?? 0dB (MAX7469)

?? +6dB (MAX7470)

? DC- or AC-Coupled Outputs

? Single +5V Analog and +3.3V Digital Supplies

? 5mW Power-Down Mode

? 20-Pin TQFN Lead-Free Package

Applications

?? HDTV (LCD, PDP, DLP, CRT)

?? Set-Top Boxes

?? Personal Video Recorders

?? Home Theaters