ADV7172| Datasheet

ADV7172, ADV7173, ADV7173

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Digital PAL/NTSC Video Encoder with Six DACs (10 Bits), Color Control and Enhanced Power Management ADV7172/ADV7173*
Color Signal Control/Burst Signal Control Interlaced/Noninterlaced Operation Complete On-Chip Video Timing Generator Programmable Multimode Master/Slave Operation Macrovision Antitaping Rev 7.1 (ADV7172 Only) 2 Closed Captioning Support Teletext Insertion Port (PAL-WST) On-Board Color Bar Generation On-Board Voltage Reference 2-Wire Serial MPU Interface (I2C -Compatible and Fast I2C) Single Supply 5 V or 3.3 V Operation Small 48-Lead LQFP Package APPLICATIONS High Performance DVD Playback Systems, Portable Video Equipment including Digital Still Cameras and Laptop PCs, Video Games, PC Video/Multimedia and Digital Satellite/Cable Systems (Set-Top Boxes/IRD) GENERAL DESCRIPTION

FEATURES ITU-R1 BT601/656 YCrCb to PAL/NTSC Video Encoder Six High Quality 10-Bit Video DACs SSAFTM (Super Sub-Alias Filter) Advanced Power Management Features PC'98-Compliant (TV Detect with Polling and Auto Shutdown to Save On Power Consumption) Low Power DAC Mode Individual DAC ON/OFF Control Variable DAC Output Current (5 mA 36 mA) Ultralow Sleep Mode Current Hue, Brightness, Contrast and Saturation Controls CGMS (Copy Generation Management System) WSS (Wide Screen Signalling) NTSC-M, PAL-M/N, PAL-B/D/G/H/I, PAL-60 YUV Betacam, MII and SMPTE/EBU N10 Output Levels Single 27 MHz Clock Required ( 2 Oversampling) 80 dB Video SNR 32-Bit Direct Digital Synthesizer for Color Subcarrier Multistandard Video Output Support: Composite (CVBS) Component S-Video (Y/C) Component YUV EuroSCART RGB Component YUV + CHROMA + LUMA + CVBS EuroSCART Output RGB + CHROMA + LUMA + CVBS Programmable Clamping Output Signal Advanced Programmable Power-On Reset Sequencing Video Input Data Port Supports: CCIR-656 4:2:2 8-Bit Parallel
Input Format SMPTE 170M NTSC-Compatible Composite Video ITU-R BT.470 PAL-Compatible Composite Video Luma Sharpness Control Programmable Luma Filters (Low-Pass [PAL/NTSC], Notch [PAL/NTSC], Extended [SSAF], CIF and QCIF) Programmable Chroma Filters (Low-Pass [0.65 MHz, 1.0 MHz, 1.2 MHz and 2.0 MHz], CIF and QCIF) Programmable VBI (Vertical Blanking Interval) Programmable Subcarrier Frequency and Phase Programmable LUMA Delay CCIR and Square Pixel Operation Integrated Subcarrier Locking to External Video Source

The ADV7172/ADV7173 is an integrated Digital Video Encoder that converts digital CCIR-601 4:2:2 8-bit component video data into a standard analog baseband television signal compatible with worldwide standards. There are six DACs available on the ADV7172/ADV7173. In addition to the Composite output signal there is the facility to output S-VHS Y/C Video, RGB Video and YUV Video. The on-board SSAF (Super Sub-Alias Filter), with extended luminance frequency response and sharp stopband attenuation, enables studio quality video playback on modern TVs, giving optimal horizontal line resolution. An additional sharpness control feature allows extra luminance boost on the frequency response. An advanced power management circuit enables optimal control of power consumption in both normal operating modes and power down or sleep modes. A PC'98-Compliant autodetect feature has been added to allow the user to determine whether or not the DACs are correctly terminated. If not, the ADV7172/ ADV7173 flags that they are not co
nnected through the Status bit and provides the option of automatically powering them down, thereby reducing power consumption. The ADV7172/ADV7173 also supports both PAL and NTSC square pixel operation. The parts also incorporate WSS and CGMS-A data control generation.

NOTES *This device is protected by U.S. Patent Numbers 4,631,603, 4,577,216, 4,819,098 and other intellectual property rights. 1 ITU-R and CCIR are used interchangeably in this document (ITU-R has replaced CCIR recommendations). 2 The Macrovision anticopy process is licensed for noncommercial home use only, which is its sole intended use in the device. Please contact sales office for latest Macrovision version available. SSAF is a trademark of Analog Devices, Inc. I2C is a registered trademark of Philips Corporation.

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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. 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