a
Preliminary Technical Data
Multi-format Progressive Scan/HDTV
Encoder with three 11-Bit DACs and
Macrovision
ADV7196
INPUT FORMATS
YCrCb in 2x10-Bit (4:2:2) or 3x10-Bit (4:4:4) format
compliant to SMPTE-293M (525p), ITU-R.BT1358
(625p), SMPTE274M (1080i), SMPTE296M (720p)
and any other High Definition standard using
Async Timing Mode
RGB in 3x10 Bit 4:4:4 format
OUTPUT FORMATS
YPrPb Progressive Scan (EIA-770.1, EIA-770.2)
YPrPb HDTV (EIA 770.3)
RGB levels compliant to RS-170 and RS-343A
Macrovision Rev 1.0 (525p)
CGMS-A (525p)
2 Wire Serial MPU Interface
Single Supply +5V/+3.3 V Operation
52-PQFP package
Y
R
A L
IN A
IM IC
L N
E H A
PR EC AT
T D
PROGRAMMABLE FEATURES
Internal Testpattern Generator with Color Control
Y/C delay (+/-)
Gamma Correction
Individual DAC on/off control
GENERAL DESCRIPTION
54MHz Output (2xOversampling)
Sharpness filter with programmable gain/attenuation
Programmable Adaptive Filter Control
Undershoot Limiter
VBI Open Control
The ADV7196 is a triple high speed, digital-to-analog
encoder on a single monolithic chip. It consists of three
high speed video D/A converters with TTL compatible
inputs.
The ADV7196 has three separate 10-Bit wide input ports
which accept data in 4:4:4 10-Bit YCrCb or RGB or 4:2:2
10-Bit YCrCb. This data is accepted in progressive scan
format at 27MHz or HDTV format at 74.25MHZ or
74.1758MHz. For any other High Definition standard but
SMPTE 293M, ITU-R BT.1358, SMPTE274M or
SMPTE296M the Async Timing Mode can be used to
input data to the ADV7196. For all standards, external
horizontal, vertical and blanking signals or EAV/SAV
codes control the insertion of appropriate synchronisation
signals into the digital data stream and therefore the
output signals.
APPLICATIONS
Progressive Scan / HDTV Display Devices
DVD Players
Progressive Scan/HDTV Projection Systems
Digital Video Systems
High Resolution Color Graphics
Image Processing/ Instrumentation
Digital Radio Modulation/ Video Signal Reconstruction
In Progressive Scan Mode, a Sharpness Filter with programmable gain allows high frequency enhancement on the
luminance signal. Programmable Adaptive Filter Control
which may be used, allows removal of ringing on the
incoming Y data. The ADV7196 supports CGMS-A data
control generation and the Macrovision Anticopy algorithm in 525p mode.
The ADV7196 is packaged in a 52-Pin PQFP package.
FUNCTIONAL BLOCK DIAGRAM
SHARPNESS
FILT ER CONTROL
&
ADAPTIVE
FILT ER CONTROL
Y0-Y9
Cr0-9
The ADV7196 outputs analog YPrPb progressive scan
format complying to EIA770.1, EIA 770.2 or YPrPb
HDTV complying to EIA 770.3 or RGB complying to
RS-170/RS 343A.
The ADV7196 requires a single +5V/3.3V power supply,
an optional external 1.235 V reference and a 27 MHz
clock in Progressive Scan Mode or a 74.25MHz (or
74.1758MHz) clock in HDTV mode.
Preliminary REV R 2510
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 which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of Analog
Devices.
CGMS
MACROVISION
TESTPATTERN
GENERAT OR
&
DELAY
&
GAMMA
CORRECTION
11-BIT
DAC
4:2:2 to
4:4:4
2XINT ERPOLAT ION
DAC A (Y)
DAC B
11-BIT
DAC
Cb 0-9
11-BIT
DAC
DAC C
4:2:2 to
4:4:4
VREF
CLKIN
DAC C ONTROL
BLOCK
RSET
COMP
HORIZONTALSYNC
VERTICA L SYNC
TIMING
GENERAT OR
SYNC
GENERATOR
BLANKING
RESET
I2C MPU PORT
* ADV is a Registered Trademark of Analog Devices, Inc.
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106,
U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
© Analog Devices, Inc., 2000