Analog Devices Inc.

The ADV7840 is a high quality, single chip, multiformat video decoder graphics digitizer with an integrated 4:1 multiplexed HDMI? receiver.This multiformat 3D comb filter decoder supports the conversion of PAL, NTSC, and SECAM standards in the form of a compositeor an S-Video input signal into a digital ITU-R BT.656 format.SCART and overlay functionality are enabled by the ability of theADV7840 to process CVBS and standard definition RGB signals simultaneously.The ADV7840 contains one main component processor (CP),which processes YPrPb and RGB component formats, including RGB graphics. The CP also processes the video signals from theHDMI receiver. The ADV7840 can operate in quad HDMI andanalog input mode, thus allowing for fast switching between theADCs and HDMI.The ADV7840 supports the decoding of a component RGB/YPrPb video signal into a digital YCrCb or RGB pixel output stream. The support for component video includes 525i, 625i,525p, 625p, 720p, 1080i, 1080p, and 1250i standards, as well asmany other HD and SMPTE standards.Graphics digitization is also supported by the ADV7840. TheADV7840 is capable of digitizing RGB graphics signals from VGA to UXGA rates and converting them into a digital RGB or YCrCb pixel output stream.The ADV7840 incorporates a quad input HDMI 1.3-compatible receiver that supports all HDTV formats up to 1080p and display resolutions up to UXGA (1600 ? 1200 at 60 Hz). The reception of encrypted video is possible with the inclusion of HDCP. The HDMI receiver also includes programmable equalization that ensures robust operation of the interface with cablelengths up to 30 meters. The HDMI receiver has advanced audio functionality, such as a mute controller, that prevents audible extraneous noise in the audio output.Fabricated in an advanced CMOS process, the ADV7840 is provided in a 19 mm ? 19 mm, 416-ball, CSP_BGA, surface-mount, RoHS-compliant package and is specified over the 0?C to +70?C temperature range.ApplicationsAdvanced TVsPDP HDTVsLCD TVs (HDTV ready)LCD/DLP? rear projection HDTVsCRT HDTVsLCoS? HDTVsAVR video receiversLCD/DLP front projectorsHDTV STBs with PVRCRT HDTVProjectorsDVD recorders with progressive scan input support

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