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ADV7197 Datasheet(PDF) 1 Page - Analog Devices

Part # ADV7197
Description  Multiformat HDTV Encoder with Three 11-Bit DACs
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADV7197 Datasheet(HTML) 1 Page - Analog Devices

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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.
a
ADV7197
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
Multiformat HDTV Encoder with
Three 11-Bit DACs
FUNCTIONAL BLOCK DIAGRAM
TEST
PATTERN
GENERATOR
AND
DELAY
Y0–Y9
Cr0–Cr9
Cb0–Cb9
SYNC
GENERATOR
TIMING
GENERATOR
I
2C MPU
PORT
CLKIN
HORIZONTAL
SYNC
VERTICAL
SYNC
BLANKING
RESET
ADV7197
DAC CONTROL
BLOCK
DAC A (Y)
DAC B
DAC C
V
REF
R
SET
COMP
11-BIT
+ SYNC
DAC
11-BIT
DAC
11-BIT
DAC
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 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 HDTV (EIA-770.3)
RGB Levels Compliant to RS-170 and RS-343A
11-Bit + Sync (DAC A)
11-Bit DACs (DAC B, C)
PROGRAMMABLE FEATURES
Internal Test Pattern Generator with Color Control
Y/C Delay ( )
Individual DAC On/Off Control
VBI Open Control
I2C Filter
2-Wire Serial MPU Interface
Single Supply 5 V/3.3 V Operation
52-Lead MQFP Package
APPLICATIONS
HDTV Display Devices
HDTV Projection Systems
Digital Video Systems
High Resolution Color Graphics
Image Processing/Instrumentation
Digital Radio Modulation/Video Signal Reconstruction
*ADV is a registered trademark of Analog Devices, Inc.
GENERAL DESCRIPTION
The ADV7197 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 ADV7197 has three separate 10-bit-wide input ports that
accept data in 4:4:4 10-bit YCrCb or RGB, or 4:2:2 10-bit
YCrCb. This data is accepted in HDTV format at 74.25 MHz
or 74.1758 MHz. For any other high definition standard but
SMPTE274M or SMPTE296M, the Async Timing Mode can
be used to input data to the ADV7197. 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 ADV7197 outputs analog YPrPb HDTV complying to
EIA-770.3, or RGB complying to RS-170/RS-343A.
The ADV7197 requires a single 5 V/3.3 V power supply, an
optional external 1.235 V reference, and a 74.25 MHz (or
74.1758 MHz) clock.
The ADV7197 is packaged in a 52-lead MQFP package.


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