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ADV7197 Datasheet(PDF) 1 Page - Analog Devices |
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ADV7197 Datasheet(HTML) 1 Page - Analog Devices |
1 / 20 page 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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Similar Description - ADV7197_15 |
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