a
Multiformat Progressive Scan/HDTV
Encoder with Three 11-Bit DACs,
10-Bit Data Input, and Macrovision
ADV7196A
FUNCTIONAL BLOCK DIAGRAM
SHARPNESS
FILTER CONTROL
AND
ADAPTIVE
FILTER CONTROL
Y0–Y9
TEST PATTERN
GENERATOR
AND
DELAY
AND
GAMMA
CORRECTION
CHROMA
4:2:2
TO
4:4:4
(SSAF)
CHROMA
4:2:2
TO
4:4:4
(SSAF)
FEATURES
INPUT FORMATS
YCrCb in 2 10-Bit (4:2:2) or 3 10-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 3 10 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
11-Bit and Sync (DAC A)
11-Bit DACs (DAC B, DAC C)
PROGRAMMABLE FEATURES
Internal Test Pattern Generator with Color Control
Y/C Delay ( )
Gamma Correction
Individual DAC On/Off Control
54 MHz Output (2 Oversampling)
Sharpness Filter with Programmable Gain/Attenuation
Programmable Adaptive Filter Control
Undershoot Limiter
I
2
C
®
Filter
VBI Open Control
Macrovision Rev. 1.0 (525p)
CGMS-A (525p)
2-Wire Serial MPU Interface
Single Supply 3.3 V Operation
52-MQFP Package
APPLICATIONS
Progressive Scan/HDTV Display Devices
DVD Players
MPEG 2 at 81 MHz
Progressive Scan/HDTV Projection Systems
Digital Video Systems
High Resolution Color Graphics
Image Processing/Instrumentation
Digital Radio Modulation/Video Signal Reconstruction
GENERAL DESCRIPTION
ADV7196A
CGMS
MACROVISION
11-BIT+
SYNC
DAC
11-BIT
DAC
2 INTER-
POLATION
11-BIT
DAC
LUMA
SSAF
DAC A (Y)
Cr0–Cr9
DAC B
Cb0–Cb9
DAC C
CLKIN
HORIZONTAL
SYNC
VERTICAL
SYNC
BLANKING
RESET
TIMING
GENERATOR
I
2
C MPU
PORT
SYNC
GENERATOR
V
REF
RESET
COMP
DAC CONTROL
BLOCK
The ADV7196A 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 27 MHz or
HDTV format at 74.25 MHz or 74.1758 MHz. 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 ADV7196A. For all standards, external
horizontal, vertical, and blanking signals or EAV/SAV codes control
the insertion of appropriate synchronization signals into the digital
data stream and therefore the output signals.
The ADV7196A outputs analog YPrPb progressive scan format
complying to EIA-770.1, EIA-770.2; YPrPb HDTV complying
to EIA-770.3; RGB complying to RS-170/RS-343A.
The ADV7196A requires a single 3.3 V power supply, an
optional external 1.235 V reference and a 27 MHz clock in
Progressive Scan Mode or a 74.25 MHz (or 74.1758 MHz)
clock in HDTV mode.
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 ADV7196A
supports CGMS-A data control generation and the Macrovision
Anticopy algorithm in 525p mode.
The ADV7196A is packaged in a 52-lead MQFP package.
The ADV7196A 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.
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2
C is a registered trademark of Philips Corporation.
REV. 0
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. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2001
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