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PDF ( 数据手册 , 数据表 ) ADV7441A

零件编号 ADV7441A
描述 Multiformat SDTV/HDTV Video Decoder and RGB Graphics Digitizer
制造商 Analog Devices
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ADV7441A 数据手册, 描述, 功能
Data Sheet
Dual HDMI Receiver, Multiformat SDTV/HDTV
Video Decoder, and RGB Graphics Digitizer
ADV7441A
FEATURES
Dual HDMI® 1.3 receiver
HDMI support
Deep color support
xvYCC Enhanced colorimetry
Gamut metadata
225 MHz HDMI receiver
Repeater support
High-bandwidth digital content protection (HDCP 1.3)
S/PDIF (IEC60958-compatible) digital audio output
Multichannel I2S audio output (up to 8 channels)
Adaptive equalizer for cable lengths up to 30 meters
Internal EDID RAM
DVI 1.0
Multiformat decoder
Four 10-bit analog-to-digital converters (ADCs)
ADC sampling rates up to 170 MHz
Mux with 12 analog input channels
SCART fast blank sampling support
NTSC/PAL/SECAM color standards support
525p-/625p-component progressive scan formats support
720p-/1080i-/1080p-component HD formats support
Digitizes RGB graphics from VGA to UXGA rates
(up to 1600 × 1200 at 60 Hz)
VBI data slicer (including teletext)
Analog-to-HDMI fast switching mode
General
Highly flexible output interface
STDI function support standard identification
2 any-to-any, 3 × 3 color-space conversion matrices
Programmable interrupt request output pins
APPLICATIONS
Advanced TVs
PDP HDTVs
LCD TVs (HDTV ready)
LCD/DLP® rear projection HDTVs
CRT HDTVs
LCoS® HDTVs
Audio/video receivers (AVR)
LCD/DLP front projectors
HDTV STBs with PVR
DVD recorders with progressive scan input support
GENERAL DESCRIPTION
The ADV7441A is a high quality multiformat video decoder and
graphics digitizer with an integrated 2:1 multiplexed HDMI receiver.
The ADV7441A contains two main processing sections. The
first section is the standard definition processor (SDP), which
processes all types of PAL, NTSC, and SECAM signals. The second
section is the 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
ADV7441A can keep the HDCP link between a HDMI source
and the selected HDMI port active in analog mode operation. This
allows for fast switching between the analog and HDMI modes.
As a decoder, the ADV7441A can convert PAL, NTSC, and
SECAM composite or S-Video signals into a digital ITU-R
BT.656 format. It can also decode a component RGB or YPrPb
video signal into a digital YCrCb or RGB pixel output stream.
The ADV7441A supports the 525i, 625i, 525p, 625p, 720p, 1080i,
1080p, and 1250i component video standards, as well as many
other HD and SMPTE standards. SCART and overlay functionality
are enabled by the ability of the ADV7441A to process CVBS
and standard definition RGB signals simultaneously. As a
graphics digitizer, the ADV7441A can digitize RGB graphics
signals from VGA to UXGA rates and convert them to a digital
RGB or YCrCb pixel output stream.
The ADV7441A incorporates a dual-input HDMI-compatible
receiver that supports HDTV formats up to 1080p and display
resolutions up to UXGA. The reception of encrypted video is
possible with the inclusion of HDCP. The inclusion of adaptive
equalization in the HDMI receiver ensures robust operation of the
interface with cable lengths up to 30 meters. The HDMI receiver
has advanced audio functionality, including a mute controller
that prevents audible extraneous noise in the audio output.
To facilitate professional applications, where HDCP processing
and decryption is not required, a derivative part of the ADV7441A
is available. This allows users who are not HDCP adopters to pur-
chase the ADV7441A (see the Ordering Guide section for details).
Fabricated using an advanced CMOS process, the ADV7441A
is available in a space-saving, 144-lead, surface-mount, RoHS-
compliant, plastic LQFP and is specified over the −40°C to
+85°C temperature range.
Rev. H
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,nor for anyinfringementsofpatentsor other
rightsof third partiesthat 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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2007–2012 Analog Devices, Inc. All rights reserved.







ADV7441A pdf, 数据表
Data Sheet
ADV7441A
ANALOG AND HDMI SPECIFICATIONS
AVDD = 1.71 V to 1.89 V, DVDD = 1.62 V to 1.98 V, DVDDIO = 2.97 V to 3.63 V, PVDD = 1.71 V to 1.89 V, TVDD = 3.135 V to 3.465 V,
CVDD = 1.71 V to 1.89 V. Operating temperature range is −40°C to +85°C, unless otherwise noted.
Table 3.
Parameter1, 2
CLAMP CIRCUITRY
External Clamp Capacitor
Input Impedance (Except Pin 74)
Input Impedance of Pin 74
Common-Mode Level (CML)
ADC Full-Scale Level
ADC Zero-Scale Level
ADC Dynamic Range
Clamp Level (When Locked)
Large Clamp Source Current
Large Clamp Sink Current
Fine Clamp Source Current
Fine Clamp Sink Current
HDMI SPECIFICATIONS3
Intrapair (Positive-to-Negative) Differential
Input Skew4, 5
Channel-to-Channel Differential Input Skew5, 6
Test Conditions
Clamps switched off
CVBS input
SCART RGB input (R, G, B signals)
S-Video input (Y signal)
S-Video input (C signal)
Component input (Y signal)
Component input (Pr signal)
Component input (Pb signal)
PC RGB input (R, G, B signals)
SDP only
SDP only
SDP only
SDP only
Min
1 The minimum/maximum specifications are guaranteed over the −40°C to +85°C temperature range (TMIN to TMAX).
2 Guaranteed by characterization.
3 Guaranteed by design.
4 tbit is 1/10 the pixel period tpixel.
5 The unit of measurement depends on the video applied and the TMDS clock frequency.
6 tpixel is the period of the TMDS clock.
Typ
0.1
10
20
0.88
CML + 0.5
CML − 0.5
1
CML – 0.122
CML – 0.167
CML– 0.122
CML
CML − 0.120
CML
CML
CML − 0.120
8
8
0.25
0.4
Max
0.4 tbit
0.2 tpixel + 1.78 ns
Unit
µF
MΩ
kΩ
V
V
V
V
V
V
V
V
V
V
V
V
mA
mA
µA
µA
Rev. H | Page 7 of 28







ADV7441A equivalent, schematic
Data Sheet
COMPONENT VIDEO PROCESSING
The ADV7441A supports 525i, 625i, 525p, 625p, 720p, 1080i,
1080p, and many other HDTV formats. It provides automatic
adjustments for gain (contrast) and offset (brightness), as well
as manual adjustment controls. Furthermore, the ADV7441A
not only supports analog component YPrPb/RGB video formats
with embedded synchronization or with separate HS, VS, and CS,
but also supports YCrCb-to-RGB and RGB-to-YCrCb conversions
by any-to-any, 3 × 3 color-space conversion matrices.
In addition, the ADV7441A features brightness, saturation, and
hue controls. Standard identification (STDI) enables detection
of the component format at the system level, and a synchroniza-
tion source polarity detector (SSPD) determines the source and
polarity of the synchronization signals that accompany the
input video.
Certified Macrovision copy protection detection is available on
component formats (525i, 625i, 525p, and 625p).
When no video input is present, free-run output mode provides
stable timing.
The ADV7441A supports user-defined pixel sampling for
nonstandard video sources and arbitrary pixel sampling
for nonstandard video sources.
ADV7441A
RGB GRAPHICS PROCESSING
The ADV7441A provides 170 MSPS conversion rate support of
RGB input resolutions up to 1600 × 1200 at 60 Hz (UXGA) and
automatic or manual clamp and gain controls for graphics models.
The RGB graphics processing functionality features contrast
and brightness controls, automatic detection of synchronization
source and polarity by the SSPD block, standard identification
enabled by the STDI block, and user-defined pixel sampling
support for nonstandard video sources.
Additional RGB graphics processing features of the ADV7441A
include the following:
Sampling PLL clock with 500 ps p-p jitter at 170 MSPS.
32-phase DLL support of optimum pixel clock sampling.
Color-space conversion of RGB to YCrCb and decimation
to a 4:2:2 format for videocentric back-end IC interfacing.
Data enable (DE) output signal supplied for direct
connection to the HDMI/DVI transmitter IC.
GENERAL FEATURES
The ADV7441A features HS, VS, and FIELD output signals with
programmable position, polarity, and width. It also includes
programmable interrupt request output pins, INT1 and INT2.
The part offers low power consumption—1.8 V digital core,
1.8 V analog, and 3.3 V digital input/output—and a low power
power-down mode.
The ADV7441A operates over a temperature range of −40°C
to +85°C and is available in a 144-lead, 20 mm × 20 mm, RoHS-
compliant LQFP.
Rev. H | Page 15 of 28










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