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ADV7850:  Complete AV Front-End

Product Details

Product Status:Recommended for New Designs

The ADV7850 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 HDMI output stream. SCART and overlay functionality are enabled by the ability of the ADV7850 to process CVBS and standard definition RGB signals simultaneously.

The ADV7850 contains one main component processor (CP) that processes YPrPb and RGB component formats, including RGB graphics. The ADV7850 can operate in quad HDMI and analog input mode, thus allowing for fast switching between the analog video inputs and HDMI.

The ADV7850 supports the decoding of a component RGB/ YPrPb video signal into a HDMI output stream. The support for component video includes 525i, 625i, 525p, 625p, 720p, 1080i, 1080p, and 1250i standards, as well as many other SMPTE and HD standards.

The ADV7850 supports graphics digitization. The ADV7850 is capable of digitizing RGB graphics signals from VGA to UXGA rates and converting them into an HDMI output stream. Internal EDID RAM is available for one graphics port.

The ADV7850 incorporates a quad input HDMI-compatible receiver that supports all HDTV formats up to 3D 1080p 60 Hz and 2160P 24 Hz.

The ADV7850 supports full HDCP decryption with internal key storage. The ADV7850 features HDCP authentication on all ports simultaneously. The feature allows fast switching between HDMI ports. Sync measurements and status monitoring are also available for all HDMI ports. Each HDMI port has dedicated 5 V detect and hot plug assert pins. The HDMI receiver also includes an integrated equalizer 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 flag, that prevents audible extraneous noise in the audio output.

In addition, the HDMI receiver incorporates internal EDID support, which can be made available in full power, powerdown, and power-off modes. An internal regulator supplies external EDID memory from the HDMI 5 V signal in poweroff mode.

The ADV7850 incorporates Xpressview™ fast switching on all HDMI input ports. Using the Analog Devices, Inc., hardwarebased HDCP engine that minimizes software overhead, Xpressview technology allows fast switching between any two HDMI input ports in less than 1 second.

The ADV7850 offers a flexible audio output port for the audio data decoded from the HDMI stream. HDMI audio formats, including super audio CD (SACD) via DSD, DST, and HBR are supported.

The ADV7850 also features the single mode audio return channel (ARC) feature. ARC simplifies cabling by combining upstream audio capability in a conventional HDMI cable.

The stereo audio ADC converts analog audio inputs and provides the data to the back end via the HDMI interface. The stereo audio DAC receives I2S data from the back end and converts it to analog audio output. The audio output is available as both high impedance and a driven output, which is suitable for driving headphones directly.

Fabricated in an advanced CMOS process, the ADV7850 is provided in a 19 mm × 19 mm, 425-ball, CSP_BGA, surfacemount, RoHS-compliant package, and is specified over the −20°C to +70°C temperature range.

APPLICATIONS

  • HDTVs
  • Set-top boxes
  • AV receivers
  • Projectors
  • Video matrix switchers

FEATURES and BENEFITS

Main Features

  • Four port HDMI® XpressviewTM Receiver
  • 170 MHz video and graphics digitizer

HDMI Support

  • 3D TV Support
  • Audio Return channel (ARC)
  • Extended colorimetry

4:1 HDMI 297MHz Receiver

  • Support for up to 16 VSI’s (including THX Media Director™)
  • Fast switching of HDMI ports (XpressviewTM)

High-speed serial output (HDMI 297MHz)

  • Full transmitter support including encryption
  • Can operate in a transceiver configuration

Video and graphics digitizer

  • Digitizes RGB graphics up to 1600 × 1200 at 60 Hz (UXGA)
  • SD, ED and HD TV support up to 1080p at 60 Hz

3D comb Video Decoder

  • Full NTSC/PAL/SECAM color standards support
  • Adaptive 3D comb filter video decoder

Audio CODEC

  • 24-bit, 48 kHz Stereo CODEC
  • 5-channel stereo analog input mux with a stereo output

General

  • Internal EDID RAM for HDMI and graphics
  • Dual STDI (standard identification) function support for dual input detection
  • See data sheet for additional features

Functional Block Diagram for ADV7850

Similar Products

  • AD7844 Quad HDMI 1.4 Fast Switching Receiver with 12-Bit, 170 MHz Video and Graphics Digitizer and 3D Comb Filter Decoder
  • ADV7619 Dual Port, Xpressview, 3 GHz HDMI Receiver
  • ADV7623 HDMI® Transceiver with Xpressview™ Fast Switching Technology
  • ADV8003 Video Signal Processor with Bitmap OSD, Dual HDMI Tx, and Video Encoder

Engineer Zone Video Support Community

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADV7850 HDMI Receiver Library API Source Code for any OS\Platform (exe)
This software is protected by copyright law and international treaties. As a condition to accessing or using the software you must agree to the terms of the associated software license agreement.
Software Modules HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADV7850 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADV7850EBZ Status: Contact ADI Evaluation Board - Yes - Contact ADI

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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