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Quad HDMI 1.4 Fast Switching Receiver with 12-Bit, 170 MHz Video and Graphics Digitizer and 3D Comb Filter Decoder
ADV7844
FEATURES
Quad HDMI 1.4 fast switching receiver 170 MHz video and graphics digitizer 3D comb filter video decoder SCART fast blank support Adaptive HDMI equalizer Integrated CEC controller HDMI repeater support Advanced VBI data slicer 4:1 HDMI 1.4 225 MHz receiver XpressviewTM fast switching of HDMI ports 2 ARC interfaces for ARC support SPDIF interface for ARC support 3D video format support, including frame packing 1080p 24 Hz, 720p 50 Hz, 720p 60 Hz Full colorimetry support including sYCC601, Adobe RGB, Adobe YCC 601 36-/30-bit Deep Color and 24-bit color support HDCP 1.4 support with internal HDCP keys 5 V detect and hot plug assert for each HDMI port HDMI audio support including HBR and DSD Advanced audio mute feature Flexible digital audio output interfaces Supports up to 5 S/PDIF outputs Supports up to 4 I2S outputs Video and graphics digitizer Four 170 MHz, 12-bit ADCs 12-channel analog input mux 525i-/625i-component analog input 525p-/625p-component progressive scan support 720p-/1080i-/1080p-component HDTV support Low refresh rates (24/25/30 Hz) support for 720p/1080p Digitizes RGB graphics up to 1600 x 1200 at 60 Hz (UXGA) 3D video decoder NTSC/PAL/SECAM color standards support NTSC/PAL 2D/3D motion detecting comb filter Advanced time-base correction (TBC) with frame synchronization Interlaced-to-progressive conversion for 525i and 625i IF compensation filters Vertical peaking and horizontal peaking filters Robust synchronization extraction for poor video source General Highly flexible 36-bit pixel output interface Internal EDID RAM for HDMI and graphics Dual STDI (standard identification) function support Any-to-any, 3 x 3 color space conversion (CSC) matrix 2 programmable interrupt request output pins Simultaneous analog processing and HDMI monitoring
APPLICATIONS
Advanced TVs PDP HDTVs LCD TVs (HDTV ready) LCD/DLP(R) rear projection HDTVs CRT HDTVs LCoSTM HDTVs AVR video receivers LCD/DLP front projectors HDTV STBs with PVR Projectors
FUNCTIONAL BLOCK DIAGRAM
SDRAM SCART CVBS SCART RGB + CVBS CVBS ADC ADC 48 CVBS CVBS SCART G SCART B SCART R SDP CVBS 3D YC S-VIDEO SCART
HS/VS FIELD/DE
INPUT MUX
DATA
OUTPUT MUX OUTPUT MUX
YC SD/PS YPbPr
ADC ADC
CLK
HS/VS FIELD/DE CLK 36-BIT YCbCr/RGB
HD YpbPr GRAPHICS RGB
CP YPbPr 525p/625p Pb/B 720p/1080i 1080p/ Pb/R UXGA RGB Y/G TMDS DDC TMDS DDC TMDS DDC TMDS DDC ARC DEEP COLOR HDMI Rx 36 4
HS/VS FIELD/DE CLK DATA
HDMI 1 HDMI 2 HDMI 3 HDMI 4 S/PDIF ARC_1 ARC_2
I 2S S/PDIF DSD HBR MCLK AUDIO OUTPUT 5 MCLK SCLK
FAST SWITCH HDCP KEYS
SCLK
Figure 1.
For more information on the ADV7844, email Analog Devices, Inc., at ATV_VIDEORX_Apps@analog.com.
Rev. Sp0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. www.analog.com Tel: 781.329.4700 Fax: 781.461.3113 (c)2010 Analog Devices, Inc. All rights reserved.
08850-001
ADV7844
TO AUDIO PROCESSOR
ADV7844 NOTES
(c)2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08850F-0-6/10(Sp0)
Rev. Sp0 | Page 2 of 2

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