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ADV7188BSTZ Fiches technique(PDF) 1 Page - Analog Devices |
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ADV7188BSTZ Fiches technique(HTML) 1 Page - Analog Devices |
1 / 112 page Multiformat SDTV Video Decoder with Fast Switch Overlay Support ADV7188 Rev. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. 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 ©2007 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, Noise Shaped Video (NSV®), 12-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 automatic gain control (AGC) with adaptive peak white mode Macrovision® copy protection detection Chroma transient improvement (CTI) Digital noise reduction (DNR) Multiple programmable analog input formats CVBS (composite video) Y/C (S-video) YPrPb (component) (VESA, MII, SMPTE, and BETACAM) 12 analog video input channels Integrated antialiasing filters Programmable interrupt request output pin Automatic NTSC/PAL/SECAM identification Digital output formats (8-bit, 10-bit, 16-bit, or 20-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: 0.4% typical Differential phase: 0.4° typical Programmable video controls Peak white/hue/brightness/saturation/contrast Integrated on-chip video timing generator Free-run mode (generates stable video output with no input) VBI decode support for close captioning (including Gemstar® 1×/2× (XDS)), WSS, CGMS, 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 input/output supply Industrial temperature grade: −40°C to +85°C 80-lead, Pb-free LQFP APPLICATIONS High end DVD recorders Video projectors HDD-based PVRs/DVDRs LCD TVs Set-top boxes Professional video products AVR receiver GENERAL DESCRIPTION The ADV7188 integrated video decoder automatically detects and converts standard analog baseband television signals compatible with worldwide NTSC, PAL, and SECAM standards into 4:2:2 component video data compatible with 20-/16-/10-/8-bit CCIR 601/CCIR 656. The advanced, 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 character- istics, including tape-based sources, broadcast sources, security and surveillance cameras, and professional systems. The accurate 12-bit ADC provides professional quality video performance and is unmatched. This allows true 10-bit resolution in the 10-bit output mode. The 12 analog input channels accept standard composite, S-video, and component 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% variation in line length. The output control signals allow glueless interface connections in most applications. The ADV7188 modes are set up over a 2-wire, serial, bidirectional port (I2C compatible). SCART and overlay functionality are enabled by the ability of the ADV7188 to process CVBS and standard definition RGB signals simultaneously. Signal mixing is controlled by the fast blank pin. The ADV7188 is fabricated in a 3.3 V CMOS process. Its monolithic CMOS construction ensures greater functionality with lower power dissipation. It is packaged in a small, Pb-free, 80-lead LQFP. |
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