Quad HDMI 1.4 Fast Switching Receiver with 12-Bit, 170 MHz
Video and Graphics Digitizer and 3D Comb Filter Decoder
ADV7844
General
FEATURES
Highly flexible 36-bit pixel output interface
Internal EDID RAM for HDMI and graphics
Dual STDI (standard identification) function support
Any-to-any, 3 × 3 color space conversion (CSC) matrix
2 programmable interrupt request output pins
Simultaneous analog processing and HDMI monitoring
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
APPLICATIONS
Advanced TVs
PDP HDTVs
LCD TVs (HDTV ready)
LCD/DLP® rear projection HDTVs
CRT HDTVs
4:1 HDMI 1.4 225 MHz receiver
Xpressview™ 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
LCoS™ HDTVs
AVR video receivers
LCD/DLP front projectors
HDTV STBs with PVR
Projectors
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 × 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
FUNCTIONAL BLOCK DIAGRAM
SDRAM
SCART
CVBS
48
CVBS
CVBS
SCART RGB
+ CVBS
ADC
ADC
ADC
ADC
HS/VS
SDP
CVBS
3D YC
S-VIDEO
SCART
SCART G
SCART B
SCART R
CVBS
FIELD/DE
CLK
HS/VS
YC
DATA
FIELD/DE
SD/PS
YPbPr
CLK
HS/VS
CP
Y/G
Pb/B
Pb/R
YPbPr
525p/625p
720p/1080i
1080p/
UXGA
RGB
FIELD/DE
HD YpbPr
36-BIT
YCbCr/RGB
GRAPHICS
RGB
CLK
DATA
36
HDMI 1
HDMI 2
HDMI 3
HDMI 4
TMDS
2
I S
DDC
4
AUDIO
S/PDIF
DSD
DEEP
COLOR
HDMI Rx
TMDS
DDC
OUTPUT
5
TMDS
DDC
HBR
MCLK
MCLK
SCLK
TMDS
DDC
FAST
SWITCH
SCLK
Interlaced-to-progressive conversion for 525i and 625i
IF compensation filters
Vertical peaking and horizontal peaking filters
Robust synchronization extraction for poor video source
S/PDIF
ARC_1±
ARC_2±
HDCP
KEYS
ARC
TO AUDIO
PROCESSOR
ADV7844
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 registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
www.analog.com
©2010 Analog Devices, Inc. All rights reserved.
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