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ADV7184BSTZ Datasheet(PDF) 1 Page - Analog Devices |
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ADV7184BSTZ Datasheet(HTML) 1 Page - Analog Devices |
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1 / 108 page  Multiformat SDTV Video Decoder with Fast Switch Overlay Support ADV7184 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. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 © 2005 Analog Devices, Inc. All rights reserved. FEATURES Multiformat video decoder supports NTSC-(J, M, 4.43), PAL-(B/D/G/H/I/M/N), SECAM Integrates four 54 MHz, 10-bit ADCs SCART fast blank support Clocked from a single 28.63636 MHz crystal Line-locked clock-compatible (LLC) Adaptive digital line length tracking (ADLLT™), signal processing, and enhanced FIFO management give mini TBC functionality 5-line adaptive comb filters Proprietary architecture for locking to weak, noisy, and unstable video sources such as VCRs and tuners Subcarrier frequency lock and status information output Integrated AGC with adaptive peak white mode Macrovision® copy protection detection CTI (chroma transient improvement) DNR (digital noise reduction) Multiple programmable analog input formats CVBS (composite video) S-Video (Y/C) YPrPb component (VESA, MII, SMPTE, and Betacam) 12 analog video input channels Integrated antialiasing filters Automatic NTSC/PAL/SECAM identification Programmable interrupt request output pin Digital output formats (8-bit or 16-bit) ITU-R BT.656 YCrCb 4:2:2 output + HS, VS, and FIELD 0.5 V to 1.6 V analog signal input range Differential gain: 0.5% typ Differential phase: 0.5° typ Programmable video controls Peak white/hue/brightness/saturation/contrast Integrated on-chip video timing generator Free-run mode (generates stable video output with no I/P) VBI decode support for closed captioning (including XDS), WSS, CGMS, Gemstar® 1×/2×, Teletext, VITC, VPS Power-down mode 2-wire serial MPU interface (I2C®-compatible) 3.3 V analog, 1.8 V digital core; 3.3 V IO supply Industrial temperature grade: –40°C to +85°C 80-lead LQFP Pb-free package APPLICATIONS DVD recorders Video projectors HDD-based PVRs/DVDRs LCD TVs Set-top boxes Security systems Digital televisions AVR receivers GENERAL DESCRIPTION The ADV7184 integrated video decoder automatically detects and converts a standard analog baseband television signal, which is compatible with worldwide standards NTSC, PAL, and SECAM, into 4:2:2 component video data-compatible with 16-bit or 8-bit CCIR601/CCIR656. The advanced and highly flexible digital output interface enables performance video decoding and conversion in line- locked clock-based systems. This makes the device ideally suited for a broad range of applications with diverse analog video characteristics, including tape-based sources, broadcast sources, security and surveillance cameras, and professional systems. The 10-bit accurate ADC provides professional quality video performance and is unmatched. This allows true 8-bit resolution in the 8-bit output mode. The 12 analog input channels accept standard composite, S-Video, and YPrPb video signals in an extensive number of combinations. AGC and clamp restore circuitry allow an input video signal peak-to-peak range of 0.5 V to 1.6 V. Alternatively, these can be bypassed for manual settings. The fixed 54 MHz clocking of the ADCs and datapath for all modes allows very precise, accurate sampling and digital filtering. The line locked clock output allows the output data rate, timing signals, and output clock signals to be synchronous, asynchronous, or line locked even with ±5% line length variation. The output control signals allow glueless interface connections in almost any application. The ADV7184 modes are set up over a 2-wire, serial, bidirectional port (I2C- compatible). SCART and overlay functionality are enabled by the ADV7184’s ability to simultaneously process CVBS and standard definition RGB signals. Signal mixing is controlled by the fast blank pin. The ADV7184 is fabricated in a 3.3 V CMOS process. Its monolithic CMOS construction ensures greater functionality with lower power dissipation. The ADV7184 is packaged in a small 80-lead LQFP Pb-free package. |
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