ADV7840: 12-Bit, 170 MHz Video and Graphics Digitizer with 3D Comb Filter Decoder and Quad HDMI 1.3 Receiver
【Product Feature】* Video and graphics digitizer
- Four 170 MHz, 12-bit ADCs
- 12-channel analog input mux
- Please see data sheet for additional video and graphics digitizer features.
* Quad HDMI receiver
- 4:1 multiplexed HDMI receiver
- HDMI 1.3, DVI 1.0
- Please see data sheet for additional quad HDMI receiver features.
- Highly flexible output interface
- 36-bit 4:4:4 pixel output interface
- Dual STDI function support standard identification
- Please see data sheet for additional general features.
【Application】* Advanced TVs
- PDP HDTVs
- LCD TVs (HDTV ready)
- LCD/DLP® rear projection HDTVs
- CRT HDTVs
- LCoS™ HDTVs
* AVR video receivers
* LCD/DLP front projectors
* HDTV STBs with PVR
* CRT HDTV
* DVD recorders with progressive scan input support
【Overview】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 composite or an S-Video input signal into a digital ITU-R BT.656 format. SCART and overlay functionality are enabled by the ability of the ADV7840 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 the HDMI receiver. The ADV7840 can operate in quad HDMI and analog input mode, thus allowing for fast switching between the ADCs 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 as many other HD and SMPTE standards. Graphics digitization is also supported by the ADV7840. The ADV7840 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 cable lengths 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."