ADV7197 Datasheet | Analog Devices

Features INPUT FORMATS YCr Cb in 2 ؋ 10-Bit (4:2:2) or 3 ؋ 10-Bit (4:4:4) Format pliant 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 YPr Pb HDTV (EIA-770.3) RGB Levels pliant 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 Multiformat HDTV Encoder with Three 11-Bit DACs ADV7197 FUNCTIONAL BLOCK DIAGRAM 11-BIT + SYNC DAC Y0- Y9 TEST PATTERN GENERATOR AND DELAY CHROMA 4:2:2 TO 4:4:4 (SSAF) CHROMA 4:2:2 TO 4:4:4 (SSAF) SYNC GENERATOR VREF RSET P I C MPU PORT DAC A (Y) Cr0- Cr9 11-BIT DAC DAC B Cb0- Cb9 11-BIT DAC DAC C CLKIN HORIZONTAL SYNC VERTICAL SYNC BLANKING RESET TIMING GENERATOR DAC CONTROL BLOCK 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-patible inputs. The ADV7197 has three separate 10-bit-wide input ports that accept data in 4:4:4 10-bit YCr Cb or RGB, or 4:2:2 10-bit YCr Cb. 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 YPr Pb HDTV plying to EIA-770.3, or RGB plying 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. - ADV is a registered trademark of Analog Devices, Inc. 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 .analog. Fax: 781/326-8703 © Analog Devices, Inc., 2001 ADV7197- SPECIFICATIONS Parameter STATIC PERFORMANCE Resolution Integral Nonlinearity Differential Nonlinearity DIGITAL OUTPUTS Output High Voltage, VOH Output Low Voltage, VOL Three-State Leakage Current Three-State Output Capacitance...